configure

#!/bin/sh
#
# MythTV configure script, based on the FFmpeg configure script
#
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
#

# Prevent locale nonsense from breaking basic text processing.
LC_ALL=C
export LC_ALL

# make sure we are running under a compatible shell
# try to make this part work with most shells

try_exec(){
    echo "Trying shell $1"
    type "$1" > /dev/null 2>&1 && exec "$@"
}

unset foo
(: ${foo%%bar}) 2> /dev/null
E1="$?"

(: ${foo?}) 2> /dev/null
E2="$?"

if test "$E1" != 0 || test "$E2" = 0; then
    echo "Broken shell detected.  Trying alternatives."
    export FF_CONF_EXEC
    if test "0$FF_CONF_EXEC" -lt 1; then
        FF_CONF_EXEC=1
        try_exec bash "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 2; then
        FF_CONF_EXEC=2
        try_exec ksh "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 3; then
        FF_CONF_EXEC=3
        try_exec /usr/xpg4/bin/sh "$0" "$@"
    fi
    echo "No compatible shell script interpreter found."
    echo "This configure script requires a POSIX-compatible shell"
    echo "such as bash or ksh."
    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
    echo "Instead, install a working POSIX-compatible shell."
    echo "Disabling this configure test will create a broken MythTV."
    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
        echo "This bash version ($BASH_VERSION) is broken on your platform."
        echo "Upgrade to a later version if available."
    fi
    exit 1
fi

test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH

show_help(){
    cat <<EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]

Standard options:
  --help                   print this message
  --previous               use previous configure parameters if possible
  --compile-type=CTYPE     one of release, profile, debug [$compile_type]
                           NOTE: profile is for sampling profilers
  --prefix=PREFIX          install in PREFIX [$prefix]
  --runprefix=PREFIX       prefix to be used at runtime (e.g. .. or /myth/latest)
  --libdir-name=LIBNAME    search/install libraries in PREFIX/LIBNAME [$libdir_name]
  --disable-ccache         disable compiler cache (ccache)
  --disable-distcc         disable distributed compilation (distcc)

Advanced options (experts only):
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
  --enable-cross-compile   assume a cross-compiler is used
  --sysroot=PATH           root of cross-build tree
  --sysinclude=PATH        location of cross-build system headers
  --cc=CC                  use C compiler CC [$cc_default]
  --cxx=CXX                use C++ compiler CXX [$cxx_default]
  --ld=LD                  use linker LD
  --qmake=QMAKE            use specified qmake [$qmake_default]
  --qmakespecs=PATH        use specified mkspecs
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
  --extra-cxxflags=ECXFLAGS add ECXXFLAGS to list of flags for C++ compile
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
  --disable-symbol-visibility disables symbol visibility options
  --disable-deprecation-warnings disables deprecated declaration warnings
  --arch=ARCH              select architecture [$arch]
  --tune=CPU               tune instruction usage for a particular CPU [$tune]
  --cpu=CPU                select the minimum required CPU (affects
                           instruction selection, may crash on older CPUs)
  --disable-altivec        disable AltiVec optimizations
  --disable-amd3dnow       disable 3DNow! optimizations
  --disable-amd3dnowext    disable 3DNow! extended optimizations
  --disable-mmx            disable MMX optimizations
  --disable-mmx2           disable MMX2 optimizations
  --disable-sse            disable SSE optimizations
  --disable-ssse3          disable SSSE3 optimizations
  --disable-avx            disable AVX optimizations
  --disable-yasm           disable use of yasm assembler
  --enable-pic             build position-independent code
  --enable-proc-opt        enable processor specific compilation
  --enable-compdb          enable clang compiler database

  --disable-audio-oss      disable OSS audio support
  --disable-audio-alsa     disable ALSA audio support
  --disable-audio-jack     disable JACK audio support
  --disable-audio-pulseoutput disable PulseAudio audio output support
  --enable-valgrind        disables timeouts for valgrind memory debugging
  --disable-lirc           disable lirc support (Infrared Remotes)
  --disable-joystick-menu  disable joystick menu
  --disable-libcec         disable libCEC device support
  --libcec-path=HDRLOC     location of directory containing
                           'libcec/cec.h', not the directory
                           with 'cec.h' [$libcec_path_default]
  --firewire-sdk           specify location for mac FireWire SDK [mac only]
  --disable-firewire       disable support for FireWire cable boxes
  --disable-hdhomerun      disable support for HDHomeRun boxes
  --disable-vbox           disable support for V@Box TV Gateway boxes
  --disable-ceton          disable support for Ceton cards
  --disable-v4l2           disable Video4Linux support
  --disable-ivtv           disable ivtv support (PVR-x50) req. v4l2 support
  --disable-hdpvr          disable HD-PVR support
  --disable-dvb            disable DVB support
  --dvb-path=HDRLOC        location of directory containing
                           'linux/dvb/frontend.h', not the
                           directory with frontend.h [$dvb_path_default]
  --disable-asi            disable support for DVEO ASI recorder
  --disable-x11            disable X11 support
  --x11-path=X11LOC        location of X11 include files [$x11_path_default]
  --disable-xrandr         disable X11 resolution switching
  --disable-vdpau          disable NVidia VDPAU hardware acceleration.
  --disable-vaapi          disable VAAPI hardware accelerated video decoding
  --disable-nvdec          disable NVDEC (CUVID) hardware accelerated video decoding
  --disable-dxva2          disable hardware accelerated decoding on windows
  --disable-mediacodec     disable hardware accelerated decoding on android
  --disable-mmal           disable hardware accelerated decoding on Raspberry Pi
  --disable-opengl-video   disable OpenGL based video display
  --disable-opengl-themepainter disable OpenGL based theme painting
  --disable-libass         disable libass SSA/ASS subtitle support
  --disable-systemd_notify disable systemd notify support
  --disable-systemd_journal disable systemd journal support

  --enable-mac-bundle      produce standalone OS X apps (e.g. mythfrontend.app)

  --disable-libxml2        disable libxml2 support (disc metadata)
  --libxml2-path=HDRLOC    location of directory containing
                           'libxml/parser.h', not the
                           directory with parser.h [$libxml2_path_default]
  --disable-libdns-sd      disable DNS Service Discovery (Bonjour/Zeroconf/Avahi)
  --disable-libcrypto      disable use of the OpenSSL cryptographic library

  --with-bindings=LIST     install the bindings specified in the
                           comma-separated list
                           Supported bindings: perl, python, php
                           comma-separated list
  --python=PATH            Force a specific python executable to use [$python_default]
  --perl-config-opts=OPTS  Additional options to pass when generating
                           Makefile.perl for building Perl bindings.
  --enable-bdjava          Enable BD-J support for Blu-ray discs

External codec library options (used for mythffmpeg and streaming transcode):
  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
  --enable-libx264         enable H.264 encoding via x264 [no]
  --enable-libx265         enable H.265 encoding via x265 [no]
  --enable-libvpx          enable VP8 encoding via libvpx [no]
  --enable-libxvid         enable Xvid encoding via xvidcore,
                           native MPEG-4/Xvid encoder exists [no]
EOF

  exit 0
}

quotes='""'
if test -t 1 && which tput >/dev/null 2>&1; then
    ncolors=$(tput colors)
    if test -n "$ncolors" && test $ncolors -ge 8; then
        bold_color=$(tput bold)
        warn_color=$(tput setaf 3)
        error_color=$(tput setaf 1)
        reset_color=$(tput sgr0)
    fi
    # 72 used instead of 80 since that's the default of pr
    ncols=$(tput cols)
fi
: ${ncols:=72}

log(){
    echo "$@" >> $logfile
}

log_file(){
    log BEGIN $1
    pr -n -t $1 >> $logfile
    log END $1
}

warn(){
    log "WARNING: $*"
    WARNINGS="${WARNINGS}WARNING: $*\n"
}

die(){
    log "$@"
    echo "$error_color$bold_color$@$reset_color"
    cat <<EOF

If you think configure made a mistake, make sure that you are using the latest
version of MythTV from git.  If the latest version fails, report the problem to the
mythtv-dev@mythtv.org mailing list or IRC #mythtv on irc.freenode.net
EOF
    if disabled logging; then
        cat <<EOF
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
EOF
    else
        cat <<EOF
Include the log file "$logfile" produced by configure as this will help
solve the problem.
EOF
    fi
    exit 1
}

# Avoid locale weirdness, besides we really just want to translate ASCII.
toupper(){
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}

tolower(){
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}

c_escape(){
    echo "$*" | sed 's/["\\]/\\\0/g'
}

sh_quote(){
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
    echo "$v"
}

cleanws(){
    echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
}

filter(){
    pat=$1
    shift
    for v; do
        eval "case $v in $pat) printf '%s ' $v ;; esac"
    done
}

filter_out(){
    pat=$1
    shift
    for v; do
        eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
    done
}

map(){
    m=$1
    shift
    for v; do eval $m; done
}

add_suffix(){
    suffix=$1
    shift
    for v; do echo ${v}${suffix}; done
}

set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

set_weak(){
    value=$1
    shift
    for var; do
        eval : \${$var:=$value}
    done
}

sanitize_var_name(){
    echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
}

set_safe(){
    var=$1
    shift
    eval $(sanitize_var_name "$var")='$*'
}

get_safe(){
    eval echo \$$(sanitize_var_name "$1")
}

pushvar(){
    for pvar in $*; do
        eval level=\${${pvar}_level:=0}
        eval ${pvar}_${level}="\$$pvar"
        eval ${pvar}_level=$(($level+1))
    done
}

popvar(){
    for pvar in $*; do
        eval level=\${${pvar}_level:-0}
        test $level = 0 && continue
        eval level=$(($level-1))
        eval $pvar="\${${pvar}_${level}}"
        eval ${pvar}_level=$level
        eval unset ${pvar}_${level}
    done
}

request(){
    for var in $*; do
        eval ${var}_requested=yes
        eval $var=
    done
}

enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

enable_weak(){
    set_weak yes $*
}

disable_weak(){
    set_weak no $*
}

enable_safe(){
    for var; do
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
    done
}

disable_safe(){
    for var; do
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
    done
}

do_enable_deep(){
    for var; do
        enabled $var && continue
        eval sel="\$${var}_select"
        eval sgs="\$${var}_suggest"
        pushvar var sgs
        enable_deep $sel
        popvar sgs
        enable_deep_weak $sgs
        popvar var
    done
}

enable_deep(){
    do_enable_deep $*
    enable $*
}

enable_deep_weak(){
    for var; do
        disabled $var && continue
        pushvar var
        do_enable_deep $var
        popvar var
        enable_weak $var
    done
}

requested(){
    test "${1#!}" = "$1" && op='=' || op=!=
    eval test "x\$${1#!}_requested" $op "xyes"
}

enabled(){
    test "${1#!}" = "$1" && op='=' || op=!=
    eval test "x\$${1#!}" $op "xyes"
}

disabled(){
    test "${1#!}" = "$1" && op='=' || op=!=
    eval test "x\$${1#!}" $op "xno"
}

enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
    return 1
}

set_default(){
    for opt; do
        eval : \${$opt:=\$${opt}_default}
    done
}

is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

do_check_deps(){
    for cfg; do
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking
        append allopts $cfg

        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"
        eval dep_con="\$${cfg}_conflict"
        eval dep_sel="\$${cfg}_select"
        eval dep_sgs="\$${cfg}_suggest"
        eval dep_ifa="\$${cfg}_if"
        eval dep_ifn="\$${cfg}_if_any"

        pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
        do_check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
        popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
        enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
        enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
        disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
        disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }

        if enabled $cfg; then
            enable_deep $dep_sel
            enable_deep_weak $dep_sgs
        fi

        disable ${cfg}_checking
    done
}

check_deps(){
    unset allopts

    do_check_deps "$@"

    for cfg in $allopts; do
        enabled $cfg || continue
        eval dep_extralibs="\$${cfg}_extralibs"
        test -n "$dep_extralibs" && add_extralibs $dep_extralibs
    done
}

print_config(){
    pfx=$1
    files=$2
    shift 2
    map 'eval echo "$v \${$v:-no}"' "$@" |
    awk "BEGIN { split(\"$files\", files) }
        {
            c = \"$pfx\" toupper(\$1);
            v = \$2;
            sub(/yes/, 1, v);
            sub(/no/,  0, v);
            for (f in files) {
                file = files[f];
                if (file ~ /\\.h\$/) {
                    printf(\"#define %s %d\\n\", c, v) >>file;
                } else if (file ~ /\\.asm\$/) {
                    printf(\"%%define %s %d\\n\", c, v) >>file;
                } else if (file ~ /\\.mak\$/) {
                    n = -v ? \"\" : \"!\";
                    printf(\"%s%s=yes\\n\", n, c) >>file;
                } else if (file ~ /\\.texi\$/) {
                    pre = -v ? \"\" : \"@c \";
                    yesno = \$2;
                    c2 = tolower(c);
                    gsub(/_/, \"-\", c2);
                    printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
                }
            }
        }"
}

print_enabled(){
    suf=$1
    shift
    for v; do
        enabled $v && printf "%s\n" ${v%$suf}
    done
}

append(){
    var=$1
    shift
    eval "$var=\"\$$var $*\""
}

prepend(){
    var=$1
    shift
    eval "$var=\"$* \$$var\""
}

unique(){
    var=$1
    uniq_list=""
    for tok in $(eval echo \$$var); do
        uniq_list="$(filter_out $tok $uniq_list) $tok"
    done
    eval "$var=\"${uniq_list}\""
}

unique2(){
    var=$1
    r=$(echo $(eval echo \$$var) | awk '{for (i=1;i<=NF;i++) if (!a[$i]++) printf("%s%s",$i,FS)}{printf("\n")}')
    eval "$var=\"${r}\""
}

add_cppflags(){
    append CPPFLAGS "$@"
}

add_cflags(){
    append CFLAGS $($cflags_filter "$@")
}

add_cflags_headers(){
    append CFLAGS_HEADERS $($cflags_filter "$@")
}

add_cxxflags(){
    append ECXXFLAGS "$@"
}

add_asflags(){
    append ASFLAGS $($asflags_filter "$@")
}

add_objcflags(){
    append OBJCFLAGS $($objcflags_filter "$@")
}

add_ldflags(){
    append LDFLAGS $($ldflags_filter "$@")
}

add_ldexeflags(){
    append LDEXEFLAGS $($ldflags_filter "$@")
}

add_ldlibflags(){
    append LDLIBFLAGS $($ldflags_filter "$@")
}

add_stripflags(){
    append ASMSTRIPFLAGS "$@"
}

add_extralibs(){
    prepend extralibs $($ldflags_filter "$@")
}

add_host_cppflags(){
    append host_cppflags "$@"
}

add_host_cflags(){
    append host_cflags $($host_cflags_filter "$@")
}

add_host_ldflags(){
    append host_ldflags $($host_ldflags_filter "$@")
}

add_compat(){
    append compat_objs $1
    shift
    map 'add_cppflags -D$v' "$@"
}

check_cmd(){
    log "$@"
    "$@" >> $logfile 2>&1
}

check_stat(){
    log check_stat "$@"
    stat "$1" >> $logfile 2>&1
}

cc_o(){
    eval printf '%s\\n' $CC_O
}

cc_e(){
    eval printf '%s\\n' $CC_E
}

check_cc(){
    log check_cc "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
}

check_cxx(){
    log check_cxx "$@"
    cat > $TMPCPP
    log_file $TMPCPP
    check_cmd $cxx $CPPFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
}

check_ecxx(){
    log check_cxx "$@"
    cat > $TMPCPP
    log_file $TMPCPP
    check_cmd $cxx $CPPFLAGS $CXXFLAGS $ECXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
}

check_objcc(){
    log check_objcc "$@"
    cat > $TMPM
    log_file $TMPM
    check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
}

check_cpp(){
    log check_cpp "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
}

as_o(){
    eval printf '%s\\n' $AS_O
}

check_as(){
    log check_as "$@"
    cat > $TMPS
    log_file $TMPS
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
}

check_inline_asm(){
    log check_inline_asm "$@"
    name="$1"
    code="$2"
    shift 2
    disable $name
    check_cc "$@" <<EOF && enable $name
void foo(void){ __asm__ volatile($code); }
EOF
}

check_inline_asm_flags(){
    log check_inline_asm_flags "$@"
    name="$1"
    code="$2"
    flags=''
    shift 2
    while [ "$1" != "" ]; do
      append flags $1
      shift
    done;
    disable $name
    cat > $TMPC <<EOF
void foo(void){ __asm__ volatile($code); }
EOF
    log_file $TMPC
    check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
    enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
}

check_insn(){
    log check_insn "$@"
    check_inline_asm ${1}_inline "\"$2\""
    echo "$2" | check_as && enable ${1}_external || disable ${1}_external
}

check_x86asm(){
    log check_x86asm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
}

ld_o(){
    eval printf '%s\\n' $LD_O
}

check_ld(){
    log check_ld "$@"
    type=$1
    shift 1
    flags=$(filter_out '-l*|*.so' $@)
    libs=$(filter '-l*|*.so' $@)
    check_$type $($cflags_filter $flags) || return
    flags=$($ldflags_filter $flags)
    libs=$($ldflags_filter $libs)
    check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
}

print_include(){
    hdr=$1
    test "${hdr%.h}" = "${hdr}" &&
        echo "#include $hdr"    ||
        echo "#include <$hdr>"
}

check_code(){
    log check_code "$@"
    check=$1
    headers=$2
    code=$3
    shift 3
    {
        for hdr in $headers; do
            print_include $hdr
        done
        echo "int main(void) { $code; return 0; }"
    } | check_$check "$@"
}

check_cppflags(){
    log check_cppflags "$@"
    check_cpp "$@" <<EOF && append CPPFLAGS "$@"
#include <stdlib.h>
EOF
}

test_cflags(){
    log test_cflags "$@"
    set -- $($cflags_filter "$@")
    check_cc "$@" <<EOF
int x;
EOF
}

check_cflags(){
    log check_cflags "$@"
    test_cflags "$@" && add_cflags "$@"
}

check_cxxflags(){
    log check_cxxflags "$@"
    check_cxx "$@" <<EOF && add_cxxflags "$@" || log "WARNING! An unknown C++ compiler flag in: \"$@\". Option(s) will be ignored."
class X {};
int x;
EOF
}

test_objcflags(){
    log test_objcflags "$@"
    set -- $($objcflags_filter "$@")
    check_objcc "$@" <<EOF
int x;
EOF
}

check_objcflags(){
    log check_objcflags "$@"
    test_objcflags "$@" && add_objcflags "$@"
}

test_ldflags(){
    log test_ldflags "$@"
    check_ld "cc" "$@" <<EOF
int main(void){ return 0; }
EOF
}

check_ldflags(){
    log check_ldflags "$@"
    test_ldflags "$@" && add_ldflags "$@"
}

test_stripflags(){
    log test_stripflags "$@"
    # call check_cc to get a fresh TMPO
    check_cc <<EOF
int main(void) { return 0; }
EOF
    check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
}

check_stripflags(){
    log check_stripflags "$@"
    test_stripflags "$@" && add_stripflags "$@"
}

check_header(){
    log check_header "$@"
    header=$1
    shift
    disable_safe $header
    check_cpp "$@" <<EOF && enable_safe $header
#include <$header>
int x;
EOF
}

check_header_objcc(){
    log check_header_objcc "$@"
    rm -f -- "$TMPO"
    header=$1
    shift
    disable_safe $header
    {
       echo "#include <$header>"
       echo "int main(void) { return 0; }"
    } | check_objcc && check_stat "$TMPO" && enable_safe $header
}

check_apple_framework(){
    log check_apple_framework "$@"
    framework="$1"
    name="$(tolower $framework)"
    header="${framework}/${framework}.h"
    disable $name
    check_header_objcc $header && enable $name && add_extralibs "-framework $framework"
}

check_func(){
    log check_func "$@"
    func=$1
    shift
    disable $func
    check_ld "cc" "$@" <<EOF && enable $func
extern int $func();
int main(void){ $func(); }
EOF
}

check_complexfunc(){
    log check_complexfunc "$@"
    func=$1
    narg=$2
    shift 2
    test $narg = 2 && args="f, g" || args="f * I"
    disable $func
    check_ld "cc" "$@" <<EOF && enable $func
#include <complex.h>
#include <math.h>
float foo(complex float f, complex float g) { return $func($args); }
int main(void){ return (int) foo; }
EOF
}

check_mathfunc(){
    log check_mathfunc "$@"
    func=$1
    narg=$2
    shift 2
    test $narg = 2 && args="f, g" || args="f"
    disable $func
    check_ld "cc" "$@" <<EOF && enable $func
#include <math.h>
float foo(float f, float g) { return $func($args); }
int main(void){ return (int) foo; }
EOF
}

check_func_headers(){
    log check_func_headers "$@"
    headers=$1
    funcs=$2
    shift 2
    {
        for hdr in $headers; do
            print_include $hdr
        done
        echo "#include <stdint.h>"
        for func in $funcs; do
            echo "long check_$func(void) { return (long) $func; }"
        done
        echo "int main(void) { int ret = 0;"
        # LTO could optimize out the test functions without this
        for func in $funcs; do
            echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
        done
        echo "return ret; }"
    } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
}

check_class_headers_cpp(){
    log check_class_headers_cpp "$@"
    headers=$1
    classes=$2
    shift 2
    {
        for hdr in $headers; do
            echo "#include <$hdr>"
        done
        echo "int main(void) { "
        i=1
        for class in $classes; do
            echo "$class obj$i;"
            i=$(expr $i + 1)
        done
        echo "return 0; }"
    } | check_ld "cxx" "$@" && enable_safe $headers
}

check_cpp_condition(){
    log check_cpp_condition "$@"
    header=$1
    condition=$2
    shift 2
    check_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

test_cflags_cc(){
    log test_cflags_cc "$@"
    flags=$1
    header=$2
    condition=$3
    shift 3
    set -- $($cflags_filter "$flags")
    check_cc "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

check_lib(){
    log check_lib "$@"
    name="$1"
    headers="$2"
    funcs="$3"
    shift 3
    disable $name
    check_func_headers "$headers" "$funcs" "$@" &&
        enable $name && add_extralibs "$@"
}

check_lib_cpp(){
    log check_lib_cpp "$@"
    headers="$1"
    classes="$2"
    shift 2
    check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
}

check_pkg_config(){
    log check_pkg_config "$@"
    name="$1"
    pkg_version="$2"
    pkg="${2%% *}"
    headers="$3"
    funcs="$4"
    shift 4
    disable $name
    check_cmd $pkg_config --exists --print-errors $pkg_version || return
    pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
    pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
        enable $name &&
        set_safe "${pkg}_cflags"    $pkg_cflags &&
        set_safe "${pkg}_extralibs" $pkg_libs
}

check_exec(){
    check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}

check_exec_crash(){
    log check_exec_crash "$@"
    code=$(cat)

    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
    # are safe but may not be available everywhere.  Thus we use
    # raise(SIGTERM) instead.  The check is run in a subshell so we
    # can redirect the "Terminated" message from the shell.  SIGBUS
    # is not defined by standard C so it is used conditionally.

    (check_exec "$@") >> $logfile 2>&1 <<EOF
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
int foo(void){
    $code
}
int (*func_ptr)(void) = foo;
int main(void){
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    return func_ptr();
}
EOF
}

check_type(){
    log check_type "$@"
    headers=$1
    type=$2
    shift 2
    disable_safe "$type"
    check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
}

check_struct(){
    log check_struct "$@"
    headers=$1
    struct=$2
    member=$3
    shift 3
    disable_safe "${struct}_${member}"
    check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
        enable_safe "${struct}_${member}"
}

check_builtin(){
    log check_builtin "$@"
    name=$1
    headers=$2
    builtin=$3
    shift 3
    disable "$name"
    check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
}

check_compile_assert(){
    log check_compile_assert "$@"
    name=$1
    headers=$2
    condition=$3
    shift 3
    disable "$name"
    check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
}

require(){
    log require "$@"
    name_version="$1"
    name="${1%% *}"
    headers="$2"
    func="$3"
    shift 3
    check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
}

require_cpp(){
    name="$1"
    headers="$2"
    classes="$3"
    shift 3
    check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
}

require_header(){
    log require "$@"
    header="$1"
    shift
    check_header "$header" "$@" || die "ERROR: $header header not found"
}

require_cpp_condition(){
    log require "$@"
    header="$1"
    condition="$2"
    shift 2
    check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
}

use_pkg_config(){
    log use_pkg_config "$@"
    pkg="${2%% *}"
    check_pkg_config "$@" || return 1
    add_cflags    $(get_safe "${pkg}_cflags")
    add_extralibs $(get_safe "${pkg}_extralibs")
}

require_pkg_config(){
    log require_pkg_config "$@"
    pkg_version="$2"
    use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
}

hostcc_e(){
    eval printf '%s\\n' $HOSTCC_E
}

hostcc_o(){
    eval printf '%s\\n' $HOSTCC_O
}

check_host_cc(){
    log check_host_cc "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
}

check_host_cpp(){
    log check_host_cpp "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
}

check_host_cppflags(){
    log check_host_cppflags "$@"
    check_host_cpp "$@" <<EOF && append host_cppflags "$@"
#include <stdlib.h>
EOF
}

check_host_cflags(){
    log check_host_cflags "$@"
    set -- $($host_cflags_filter "$@")
    check_host_cc "$@" <<EOF && append host_cflags "$@"
int x;
EOF
}

check_host_cpp_condition(){
    log check_host_cpp_condition "$@"
    header=$1
    condition=$2
    shift 2
    check_host_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

cp_if_changed(){
    cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
    mkdir -p "$(dirname $2)"
    cp -f "$1" "$2"
    echo "Created $2"
}

# MythTV Custom Tests
disable_bindings_python(){
    echo "WARNING: disabling Python bindings; missing $1"
    disable bindings_python
}

disable_bindings_perl(){
    echo "WARNING: disabling Perl bindings; missing $1"
    disable bindings_perl
}

disable_bindings_php(){
    echo "WARNING: disabling PHP bindings; missing $1"
    disable bindings_php
}

append_uniq(){
    log append_uniq "$@"
    var=$1
    shift
for value; do
eval tmpvar='$'$var
        echo "$tmpvar" | grep -q ".$value" || append $var $value
    done
}

add_cxxppflags(){
    append CXXPPFLAGS $($cxxppflags_filter "$@")
}

is_python3() {
    log is_python3
    check_cmd $python << EOF
import sys
if sys.version_info > (3,0):
    sys.exit(0)
else:
    sys.exit(1)
EOF
}

check_python(){
    log check_python
    check_cmd $python <<EOF
import sys
if sys.version_info < (2,6):
    sys.exit(1)
EOF
}

check_py_lib(){
    log check_py_lib "$@"
    lib=${1}
    check_cmd $python <<EOF
import sys
try:
    import $lib
except:
    sys.exit(1)
sys.exit(0)
EOF
}

check_pl_lib(){
    log check_pl_lib "$@"
    check_cmd perl -e "use ${1};"
}

check_ld_cxx(){
    log check_ld_cxx "$@"
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
    check_cxx $($cflags_filter $flags) || return
    check_cmd $cxx $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
}

check_cxxppflags(){
    log check_cxxppflags "$@"
    set -- $($filter_cxxppflags "$@")
    check_cxx "$@" <<EOF && append CXXPPFLAGS "$@"
int x;
EOF
}

check_libx(){
    log check_libx "$@"
    libvar="$1"
    headers="$2"
    func="$3"
    shift 3
    check_func_headers "$headers" $func "$@" && append_uniq $libvar "$@"
}

check_exec_cxx(){
    check_ld_cxx "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}

non_standard_header(){
    test x"$1" != "x/usr/include" -a  x"$1" != "x/usr/local/include"
}

x86_mmx_cpus="pentium-mmx,pentium2,pentium3,pentium3m,pentium-m"
x86_mmx_cpus="$x86_mmx_cpus,pentium4,pentium4m,prescott"
x86_mmx_cpus="$x86_mmx_cpus,athlon,athlon-xp,athlon-tbird,athlon-4,athlon-mp,"
x86_mmx_cpus="$x86_mmx_cpus,c3,c3-2,k6,k6-2,k6-3"

x86_cpus="i386,i486,i586,i686,pentium,pentiumpro,${x86_mmx_cpus}"

x86_64_cpus="x86-64,athlon64,k8,opteron,athlon64-sse3,k8-sse3,opteron-sse3"
x86_64_cpus="$x86_64_cpus,barcelona,athlon-fx,nocona,core2"

is_x86_cpu() {
    expr ",${x86_cpus}," : ".*,$1," > /dev/null
}

is_x86_64_cpu() {
    expr ",${x86_64_cpus}," : ".*,$1," > /dev/null
}

is_x86_mmx() {
    expr ",${x86_mmx_cpus}," : ".*,$1," > /dev/null || is_x86_64_cpu "$1"
}


# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

AVCODEC_COMPONENTS="
    bsfs
    decoders
    encoders
    hwaccels
    parsers
"

AVDEVICE_COMPONENTS="
    indevs
    outdevs
"

AVFILTER_COMPONENTS="
    filters
"

AVFORMAT_COMPONENTS="
    demuxers
    muxers
    protocols
"

AVRESAMPLE_COMPONENTS=""

AVUTIL_COMPONENTS=""

COMPONENT_LIST="
    $AVCODEC_COMPONENTS
    $AVDEVICE_COMPONENTS
    $AVFILTER_COMPONENTS
    $AVFORMAT_COMPONENTS
    $AVRESAMPLE_COMPONENTS
    $AVUTIL_COMPONENTS
"

EXTERNAL_AUTODETECT_LIBRARY_LIST="
    alsa
    jack
    xlib
    zlib
"

EXTERNAL_LIBRARY_GPL_LIST="
    libx264
    libx265
    libxvid
"

EXTERNAL_LIBRARY_NONFREE_LIST="
"

EXTERNAL_LIBRARY_VERSION3_LIST="
"

EXTERNAL_LIBRARY_GPLV3_LIST="
"

EXTERNAL_LIBRARY_LIST="
    $EXTERNAL_AUTODETECT_LIBRARY_LIST
    $EXTERNAL_LIBRARY_GPL_LIST
    $EXTERNAL_LIBRARY_NONFREE_LIST
    $EXTERNAL_LIBRARY_VERSION3_LIST
    $EXTERNAL_LIBRARY_GPLV3_LIST
    jni
    libass
    libfontconfig
    libfreetype
    libiec61883
    libmp3lame
    libpulse
    libvpx
    libxml2
    mediacodec
    opengl
    sdl
    sdl2
    vaapi
    nvdec
"

HWACCEL_AUTODETECT_LIBRARY_LIST="
    dxva2
    vdpau
"

HWACCEL_LIBRARY_NONFREE_LIST="
"

HWACCEL_LIBRARY_LIST="
    $HWACCEL_AUTODETECT_LIBRARY_LIST
    $HWACCEL_LIBRARY_NONFREE_LIST
"

FEATURE_LIST="
    shared
    small
    static
    swscale_alpha
"

LIBRARY_LIST="
    avcodec
    avdevice
    avfilter
    avformat
    avresample
    avutil
    postproc
    swresample
    swscale
"

LICENSE_LIST="
    gpl
    nonfree
    version3
"

PROGRAM_LIST="
    ffprobe
    ffserver
    ffmpeg
    ffplay
"

SUBSYSTEM_LIST="
    dct
    dwt
    error_resilience
    faan
    fast_unaligned
    fft
    lsp
    lzo
    mdct
    pixelutils
    network
    rdft
"

# COMPONENT_LIST needs to come last to ensure correct dependency checking
CONFIG_LIST="
    $EXTERNAL_LIBRARY_LIST
    $HWACCEL_LIBRARY_LIST
    $FEATURE_LIST
    $LICENSE_LIST
    $LIBRARY_LIST
    $PROGRAM_LIST
    $SUBSYSTEM_LIST
    autodetect
    fontconfig
    linux_perf
    memory_poisoning
    neon_clobber_test
    ossfuzz
    pic
    compdb
    thumb
    valgrind_backtrace
    xmm_clobber_test
    $COMPONENT_LIST
"

THREADS_LIST="
    pthreads
    os2threads
    w32threads
"

ATOMICS_LIST="
    atomics_gcc
    atomics_suncc
    atomics_win32
"

AUTODETECT_LIBS="
    $EXTERNAL_AUTODETECT_LIBRARY_LIST
    $HWACCEL_AUTODETECT_LIBRARY_LIST
    $THREADS_LIST
"

ARCH_LIST="
    aarch64
    alpha
    arm
    avr32
    avr32_ap
    avr32_uc
    bfin
    ia64
    m68k
    mips
    mips64
    parisc
    ppc
    ppc64
    s390
    sh4
    sparc
    sparc64
    tilegx
    tilepro
    tomi
    x86
    x86_32
    x86_64
"

ARCH_EXT_LIST_ARM="
    armv5te
    armv6
    armv6t2
    armv8
    neon
    vfp
    vfpv3
    setend
"

ARCH_EXT_LIST_MIPS="
    mipsfpu
    mips32r2
    mips32r5
    mips64r2
    mips32r6
    mips64r6
    mipsdsp
    mipsdspr2
    msa
"

ARCH_EXT_LIST_LOONGSON="
    loongson2
    loongson3
    mmi
"

ARCH_EXT_LIST_X86_SIMD="
    aesni
    amd3dnow
    amd3dnowext
    avx
    avx2
    fma3
    fma4
    mmx
    mmxext
    sse
    sse2
    sse3
    sse4
    sse42
    ssse3
    xop
"

ARCH_EXT_LIST_PPC="
    altivec
    dcbzl
    ldbrx
    power8
    ppc4xx
    vsx
"

ARCH_EXT_LIST_X86="
    $ARCH_EXT_LIST_X86_SIMD
    cpunop
    i686
"

ARCH_EXT_LIST="
    $ARCH_EXT_LIST_ARM
    $ARCH_EXT_LIST_PPC
    $ARCH_EXT_LIST_X86
    $ARCH_EXT_LIST_MIPS
    $ARCH_EXT_LIST_LOONGSON
"

ARCH_FEATURES="
    aligned_stack
    fast_64bit
    fast_clz
    fast_cmov
    local_aligned_8
    local_aligned_16
    local_aligned_32
    simd_align_16
    simd_align_32
"

BUILTIN_LIST="
    atomic_cas_ptr
    machine_rw_barrier
    MemoryBarrier
    mm_empty
    rdtsc
    sarestart
    sem_timedwait
    sync_val_compare_and_swap
"
HAVE_LIST_CMDLINE="
    inline_asm
    symver
    x86asm
"

HAVE_LIST_PUB="
    bigendian
    fast_unaligned
"

HEADERS_LIST="
    altivec_h
    arpa_inet_h
    asm_types_h
    cdio_paranoia_h
    cdio_paranoia_paranoia_h
    d3d11_h
    dispatch_dispatch_h
    dev_bktr_ioctl_bt848_h
    dev_bktr_ioctl_meteor_h
    dev_ic_bt8xx_h
    dev_video_bktr_ioctl_bt848_h
    dev_video_meteor_ioctl_meteor_h
    direct_h
    dirent_h
    dlfcn_h
    dxgidebug_h
    dxva_h
    ES2_gl_h
    EGL_egl_h
    GLES2_gl2_h
    fcntl_h
    gsm_h
    io_h
    linux_videodev_h
    linux_videodev2_h
    mach_mach_time_h
    machine_ioctl_bt848_h
    machine_ioctl_meteor_h
    malloc_h
    opencv2_core_core_c_h
    OpenGL_gl3_h
    poll_h
    soundcard_h
    stdatomic_h
    sys_mman_h
    sys_param_h
    sys_resource_h
    sys_select_h
    sys_soundcard_h
    sys_time_h
    sys_un_h
    termios_h
    udplite_h
    unistd_h
    valgrind_valgrind_h
    windows_h
    winsock2_h
"

INTRINSICS_LIST="
    intrinsics_neon
"

COMPLEX_FUNCS="
    cabs
    cexp
"

MATH_FUNCS="
    atanf
    atan2f
    cbrt
    cbrtf
    copysign
    cosf
    erf
    exp2
    exp2f
    expf
    hypot
    isfinite
    isinf
    isnan
    ldexpf
    llrint
    llrintf
    log2
    log2f
    log10f
    lrint
    lrintf
    powf
    rint
    round
    roundf
    sinf
    trunc
    truncf
"

SYSTEM_FUNCS="
    access
    aligned_malloc
    arc4random
    clock_gettime
    closesocket
    CommandLineToArgvW
    CoTaskMemFree
    CryptGenRandom
    fcntl
    flt_lim
    fork
    getaddrinfo
    gethrtime
    getopt
    GetProcessAffinityMask
    GetProcessMemoryInfo
    GetProcessTimes
    getrusage
    GetSystemTimeAsFileTime
    gettimeofday
    glob
    glXGetProcAddress
    gmtime_r
    inet_aton
    isatty
    jack_port_get_latency_range
    kbhit
    LoadLibrary
    localtime_r
    lstat
    lzo1x_999_compress
    mach_absolute_time
    MapViewOfFile
    memalign
    mkstemp
    mmap
    mprotect
    nanosleep
    PeekNamedPipe
    posix_memalign
    pthread_cancel
    sched_getaffinity
    SetConsoleTextAttribute
    SetConsoleCtrlHandler
    setmode
    setrlimit
    Sleep
    strerror_r
    sysconf
    sysctl
    usleep
    UTGetOSTypeFromString
    VirtualAlloc
    wglGetProcAddress
    eglGetProcAddress
"

TOOLCHAIN_FEATURES="
    as_dn_directive
    as_fpu_directive
    as_func
    as_object_arch
    asm_mod_q
    attribute_may_alias
    attribute_packed
    blocks_extension
    ebp_available
    ebx_available
    gnu_as
    gnu_windres
    ibm_asm
    inline_asm_direct_symbol_refs
    inline_asm_labels
    inline_asm_nonlocal_labels
    pragma_deprecated
    rsync_contimeout
    symver_asm_label
    symver_gnu_asm
    vfp_args
    xform_asm
    xmm_clobbers
"

TYPES_LIST="
    CONDITION_VARIABLE_Ptr
    kCMVideoCodecType_HEVC
    socklen_t
    struct_addrinfo
    struct_group_source_req
    struct_ip_mreq_source
    struct_ipv6_mreq
    struct_msghdr_msg_flags
    struct_pollfd
    struct_rusage_ru_maxrss
    struct_sctp_event_subscribe
    struct_sockaddr_in6
    struct_sockaddr_sa_len
    struct_sockaddr_storage
    struct_stat_st_mtim_tv_nsec
"

HAVE_LIST="
    $ARCH_EXT_LIST
    $(add_suffix _external $ARCH_EXT_LIST)
    $(add_suffix _inline   $ARCH_EXT_LIST)
    $ARCH_FEATURES
    $ATOMICS_LIST
    $BUILTIN_LIST
    $COMPLEX_FUNCS
    $HAVE_LIST_CMDLINE
    $HAVE_LIST_PUB
    $HEADERS_LIST
    $INTRINSICS_LIST
    $MATH_FUNCS
    $SYSTEM_FUNCS
    $THREADS_LIST
    $TOOLCHAIN_FEATURES
    $TYPES_LIST
    atomics_native
    dos_paths
    libc_msvcrt
    makeinfo
    makeinfo_html
    MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
    perl
    pod2man
    section_data_rel_ro
    texi2html
    threads
    uwp
    vaapi_drm
    vaapi_x11
    vdpau_x11
    winrt
"

# options emitted with CONFIG_ prefix but not available on the command line
CONFIG_EXTRA="
    aandcttables
    ac3dsp
    audio_frame_queue
    audiodsp
    blockdsp
    bswapdsp
    cabac
    dirac_parse
    dvprofile
    exif
    faandct
    faanidct
    fdctdsp
    flacdsp
    fmtconvert
    frame_thread_encoder
    g722dsp
    golomb
    gplv3
    h263dsp
    h264chroma
    h264dsp
    h264parse
    h264pred
    h264qpel
    hevcparse
    hpeldsp
    huffman
    huffyuvdsp
    huffyuvencdsp
    idctdsp
    iirfilter
    mdct15
    intrax8
    iso_media
    ividsp
    jpegtables
    lgplv3
    libx262
    llauddsp
    llviddsp
    llvidencdsp
    lpc
    lzf
    me_cmp
    mpeg_er
    mpegaudio
    mpegaudiodsp
    mpegaudioheader
    mpegvideo
    mpegvideoenc
    mss34dsp
    pixblockdsp
    qpeldsp
    qsv
    qsvdec
    qsvenc
    rangecoder
    riffdec
    riffenc
    rtpdec
    rtpenc_chain
    rv34dsp
    sinewin
    snappy
    srtp
    startcode
    texturedsp
    texturedspenc
    tpeldsp
    vaapi_1
    vaapi_encode
    vc1dsp
    videodsp
    vp3dsp
    vp56dsp
    vp8dsp
    wma_freqs
    wmv2dsp
"

MYTHTV_CONFIG_LIST='
    backend
    bdjava
    bindings_perl
    bindings_python
    bindings_php
    cygwin
    darwin
    disable_mmx_for_debugging
    dvb
    firewire
    frontend
    hdhomerun
    vbox
    ceton
    hdpvr
    ivtv
    asi
    joystick_menu
    libcec
    libcrypto
    libdns_sd
    libfftw3
    libmpeg2external
    libxml2
    lirc
    mheg
    mmal
    opengl
    egl
    qtwebkit
    qtscript
    qtdbus
    taglib
    v4l2
    v4l2prime
    v4l1
    valgrind
    x11
    libbluray_external
    xrandr
    profiletype
    debugtype
    systemd_notify
    systemd_journal
    drm
'

MYTHTV_HAVE_LIST='
    byteswap_h
    cpu_clips_negative
    cpu_clips_positive
    fe_can_2g_modulation
    ftime
    getifaddrs
    gettimeofday
    posix_fadvise
    libudev
    libuuid
    stdint_h
    sync_file_range
    sys_endian_h
'

MYTHTV_LIST='
    audio_pulse
    audio_pulseoutput
    audio_alsa
    audio_jack
    audio_oss
    ffmpeg_pthreads
    mac_bundle
    proc_opt
    silent_cc
    symbol_visibility
    deprecation_warnings
'

USING_LIST='
    appleremote
    bdjava
    bindings_perl
    bindings_python
    bindings_php
    compdb
    darwin_da
    fontconfig
    freetype2
    mythtranscode
    dxva2
    opengl
    opengles
    egl
    drm
    vaapi
    nvdec
    vdpau
    mediacodec
    mmal
'

CMDLINE_SELECT="
    $ARCH_EXT_LIST
    $CONFIG_LIST
    $HAVE_LIST_CMDLINE
    $THREADS_LIST
    asm
    cross_compile
    debug
    extra_warnings
    logging
    lto
    optimizations
    rpath
    stripping
    $MYTHTV_LIST
    $MYTHTV_CONFIG_LIST
"

PATHS_LIST="
    bindir
    datadir
    docdir
    incdir
    libdir
    mandir
    pkgconfigdir
    prefix
    shlibdir
    install_name_dir
"

MYTHTV_PATHS_LIST='
    dvb_path
    libcec_path
    runprefix
    x11_path
    libxml2_path
    firewiresdk_path
'

MYTHTV_CMDLINE_SET='
    logging
    python
    qmake
    qmakespecs
    samples
    source_path
    bdj_type
    JDK_HOME
'

CMDLINE_SET="
    $PATHS_LIST
    ar
    arch
    as
    assert_level
    build_suffix
    cc
    objcc
    cpu
    cross_prefix
    custom_allocator
    cxx
    dep_cc
    doxygen
    env
    extra_version
    gas
    host_cc
    host_cflags
    host_extralibs
    host_ld
    host_ldflags
    host_os
    ignore_tests
    install
    ld
    ln_s
    logfile
    malloc_prefix
    nm
    optflags
    nvccflags
    pkg_config
    pkg_config_flags
    progs_suffix
    random_seed
    ranlib
    samples
    strip
    sws_max_filter_size
    sysinclude
    sysroot
    target_exec
    target_os
    target_path
    target_samples
    tempprefix
    toolchain
    valgrind
    x86asmexe
    $MYTHTV_PATHS_LIST
    $MYTHTV_CMDLINE_SET
"

CMDLINE_APPEND="
    extra_cflags
    extra_cxxflags
    extra_objcflags
    host_cppflags
"

# code dependency declarations

# architecture extensions

armv5te_deps="arm"
armv6_deps="arm"
armv6t2_deps="arm"
armv7_a_deps="arm"
armv8_deps="aarch64"
neon_deps_any="aarch64 arm"
intrinsics_neon_deps="neon"
vfp_deps_any="aarch64 arm"
vfpv3_deps="vfp"
setend_deps="arm"

map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

loongson2_deps="mips"
loongson3_deps="mips"
mipsfpu_deps="mips"
mipsdsp_deps="mips"
mipsdspr2_deps="mips"
mips32r2_deps="mips"
mips32r5_deps="mips"
mips32r6_deps="mips"
mips64r2_deps="mips"
mips64r6_deps="mips"
msa_deps="mipsfpu"
mmi_deps="mips"

altivec_deps="ppc"
dcbzl_deps="ppc"
ldbrx_deps="ppc"
ppc4xx_deps="ppc"
vsx_deps="altivec"
power8_deps="vsx"

cpunop_deps="i686"
x86_64_select="i686"
x86_64_suggest="fast_cmov"

amd3dnow_deps="mmx"
amd3dnowext_deps="amd3dnow"
i686_deps="x86"
mmx_deps="x86"
mmxext_deps="mmx"
sse_deps="mmxext"
sse2_deps="sse"
sse3_deps="sse2"
ssse3_deps="sse3"
sse4_deps="ssse3"
sse42_deps="sse4"
aesni_deps="sse42"
avx_deps="sse42"
xop_deps="avx"
fma3_deps="avx"
fma4_deps="avx"
avx2_deps="avx"

mmx_external_deps="x86asm"
mmx_inline_deps="inline_asm"
mmx_suggest="mmx_external mmx_inline"

for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
    eval dep=\$${ext}_deps
    eval ${ext}_external_deps='"${dep}_external"'
    eval ${ext}_inline_deps='"${dep}_inline"'
    eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
done

aligned_stack_if_any="aarch64 ppc x86"
fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
fast_unaligned_if_any="aarch64 ppc x86"
simd_align_16_if_any="altivec neon sse"
simd_align_32_if_any="avx"

# system capabilities
symver_if_any="symver_asm_label symver_gnu_asm"
valgrind_backtrace_conflict="optimizations"
valgrind_backtrace_deps="valgrind_valgrind_h"

# threading support
atomics_gcc_if="sync_val_compare_and_swap"
atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
atomics_win32_if="MemoryBarrier"
atomics_native_if_any="$ATOMICS_LIST"
w32threads_deps="atomics_native"
threads_if_any="$THREADS_LIST"

# subsystems
dct_select="rdft"
dirac_parse_select="golomb"
error_resilience_select="me_cmp"
faandct_deps="faan fdctdsp"
faanidct_deps="faan idctdsp"
h264dsp_select="startcode"
hevcparse_select="golomb"
frame_thread_encoder_deps="encoders threads"
intrax8_select="blockdsp idctdsp"
mdct_select="fft"
mdct15_select="fft"
me_cmp_select="fdctdsp idctdsp pixblockdsp"
mpeg_er_select="error_resilience"
mpegaudio_select="mpegaudiodsp mpegaudioheader"
mpegaudiodsp_select="dct"
mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
vc1dsp_select="h264chroma qpeldsp startcode"
rdft_select="fft"

# decoders / encoders

# hardware accelerators
dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
dxva2_extralibs="-luser32"

h263_vaapi_hwaccel_deps="vaapi"
h263_vaapi_hwaccel_select="h263_decoder"
h264_dxva2_hwaccel_deps="dxva2"
h264_dxva2_hwaccel_select="h264_decoder"
h264_vaapi_hwaccel_deps="vaapi"
h264_vaapi_hwaccel_select="h264_decoder"
h264_vdpau_hwaccel_deps="vdpau"
h264_vdpau_hwaccel_select="h264_decoder"
hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
hevc_dxva2_hwaccel_select="hevc_decoder"
hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
hevc_vaapi_hwaccel_select="hevc_decoder"
hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
hevc_vdpau_hwaccel_select="hevc_decoder"
mpeg1_vdpau_hwaccel_deps="vdpau"
mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
mpeg2_dxva2_hwaccel_deps="dxva2"
mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
mpeg2_vaapi_hwaccel_deps="vaapi"
mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
mpeg2_vdpau_hwaccel_deps="vdpau"
mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
mpeg4_vaapi_hwaccel_deps="vaapi"
mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
mpeg4_vdpau_hwaccel_deps="vdpau"
mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
vc1_dxva2_hwaccel_deps="dxva2"
vc1_dxva2_hwaccel_select="vc1_decoder"
vc1_qsv_hwaccel_select="qsvdec_vc1"
vc1_vaapi_hwaccel_deps="vaapi"
vc1_vaapi_hwaccel_select="vc1_decoder"
vc1_vdpau_hwaccel_deps="vdpau"
vc1_vdpau_hwaccel_select="vc1_decoder"
vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
vp9_dxva2_hwaccel_select="vp9_decoder"
vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
vp9_vaapi_hwaccel_select="vp9_decoder"
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

# hardware-accelerated codecs
qsvdec_select="qsv"
qsvenc_select="qsv"
vaapi_encode_deps="vaapi"

# parsers
h264_parser_select="golomb h264dsp h264parse"
hevc_parser_select="hevcparse"
mpegaudio_parser_select="mpegaudioheader"
mpegvideo_parser_select="mpegvideo"
mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
vc1_parser_select="vc1dsp"

# bitstream_filters
mjpeg2jpeg_bsf_select="jpegtables"

# external libraries
libmp3lame_encoder_deps="libmp3lame"
libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
libx262_encoder_deps="libx262"
libx264_encoder_deps="libx264"
libx264rgb_encoder_deps="libx264 x264_csp_bgr"
libx264rgb_encoder_select="libx264_encoder"

# demuxers / muxers
ac3_demuxer_select="ac3_parser"
aiff_muxer_select="iso_media"
asf_demuxer_select="riffdec"
asf_o_demuxer_select="riffdec"
asf_muxer_select="riffenc"
asf_stream_muxer_select="asf_muxer"
avi_demuxer_select="iso_media riffdec exif"
avi_muxer_select="riffenc"
caf_demuxer_select="iso_media riffdec"
caf_muxer_select="iso_media"
dash_muxer_select="mp4_muxer"
dash_demuxer_deps="libxml2"
dirac_demuxer_select="dirac_parser"
dts_demuxer_select="dca_parser"
dtshd_demuxer_select="dca_parser"
dv_demuxer_select="dvprofile"
dv_muxer_select="dvprofile"
dxa_demuxer_select="riffdec"
eac3_demuxer_select="ac3_parser"
f4v_muxer_select="mov_muxer"
fifo_muxer_deps="threads"
flac_demuxer_select="flac_parser"
hds_muxer_select="flv_muxer"
hls_muxer_select="mpegts_muxer"
image2_alias_pix_demuxer_select="image2_demuxer"
image2_brender_pix_demuxer_select="image2_demuxer"
ipod_muxer_select="mov_muxer"
ismv_muxer_select="mov_muxer"
matroska_audio_muxer_select="matroska_muxer"
matroska_demuxer_select="iso_media riffdec"
matroska_muxer_select="iso_media riffenc"
mmf_muxer_select="riffenc"
mov_demuxer_select="iso_media riffdec"
mov_demuxer_suggest="zlib"
mov_muxer_select="iso_media riffenc rtpenc_chain"
mp3_demuxer_select="mpegaudio_parser"
mp3_muxer_select="mpegaudioheader"
mp4_muxer_select="mov_muxer"
mpegts_demuxer_select="iso_media"
mpegts_muxer_select="adts_muxer latm_muxer"
mpegtsraw_demuxer_select="mpegts_demuxer"
mxf_d10_muxer_select="mxf_muxer"
mxf_opatom_muxer_select="mxf_muxer"
nut_muxer_select="riffenc"
nuv_demuxer_select="riffdec"
oga_muxer_select="ogg_muxer"
ogg_demuxer_select="dirac_parse"
ogv_muxer_select="ogg_muxer"
psp_muxer_select="mov_muxer"
rtp_demuxer_select="sdp_demuxer"
rtp_muxer_select="golomb"
rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
rtsp_demuxer_select="http_protocol rtpdec"
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
sap_demuxer_select="sdp_demuxer"
sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
sdp_demuxer_select="rtpdec"
smoothstreaming_muxer_select="ismv_muxer"
spdif_muxer_select="aac_parser"
spx_muxer_select="ogg_muxer"
swf_demuxer_suggest="zlib"
tak_demuxer_select="tak_parser"
tg2_muxer_select="mov_muxer"
tgp_muxer_select="mov_muxer"
vobsub_demuxer_select="mpegps_demuxer"
w64_demuxer_select="wav_demuxer"
w64_muxer_select="wav_muxer"
wav_demuxer_select="riffdec"
wav_muxer_select="riffenc"
webm_muxer_select="iso_media riffenc"
webm_dash_manifest_demuxer_select="matroska_demuxer"
wtv_demuxer_select="mpegts_demuxer riffdec"
wtv_muxer_select="mpegts_muxer riffenc"
xmv_demuxer_select="riffdec"
xwma_demuxer_select="riffdec"

# ffmpeg setting - value for image utils - 32 recommended, 1 used for now
image_align=1

# indevs / outdevs
alsa_indev_deps="alsa"
alsa_outdev_deps="alsa"
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
dshow_indev_deps="IBaseFilter"
dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
fbdev_indev_deps="linux_fb_h"
fbdev_outdev_deps="linux_fb_h"
gdigrab_indev_deps="CreateDIBSection"
gdigrab_indev_extralibs="-lgdi32"
gdigrab_indev_select="bmp_decoder"
iec61883_indev_deps="libiec61883"
jack_indev_deps="jack"
jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
lavfi_indev_deps="avfilter"
opengl_outdev_deps="opengl"
oss_indev_deps_any="soundcard_h sys_soundcard_h"
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
pulse_indev_deps="libpulse"
pulse_outdev_deps="libpulse"
vfwcap_indev_deps="vfw32 vfwcap_defines"

# protocols
async_protocol_deps="threads"
bluray_protocol_deps="libbluray"
ffrtmphttp_protocol_select="http_protocol"
ftp_protocol_select="tcp_protocol"
gopher_protocol_select="network"
http_protocol_select="tcp_protocol"
httpproxy_protocol_select="tcp_protocol"
icecast_protocol_select="http_protocol"
mmsh_protocol_select="http_protocol"
mmst_protocol_select="network"
rtmp_protocol_select="tcp_protocol"
rtmpt_protocol_select="ffrtmphttp_protocol"
rtp_protocol_select="udp_protocol"
sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
sctp_protocol_select="network"
srtp_protocol_select="rtp_protocol srtp"
tcp_protocol_select="network"
udp_protocol_select="network"
udplite_protocol_select="network"
unix_protocol_deps="sys_un_h"
unix_protocol_select="network"

# filters
afftfilt_filter_deps="avcodec"
afftfilt_filter_select="fft"
afir_filter_deps="avcodec"
afir_filter_select="fft"
amovie_filter_deps="avcodec avformat"
aresample_filter_deps="swresample"
ass_filter_deps="libass"
atempo_filter_deps="avcodec"
atempo_filter_select="rdft"
blackframe_filter_deps="gpl"
boxblur_filter_deps="gpl"
colormatrix_filter_deps="gpl"
cover_rect_filter_deps="avcodec avformat gpl"
cropdetect_filter_deps="gpl"
deinterlace_vaapi_filter_deps="vaapi"
delogo_filter_deps="gpl"
deshake_filter_select="pixelutils"
drawtext_filter_deps="libfreetype"
elbg_filter_deps="avcodec"
eq_filter_deps="gpl"
fftfilt_filter_deps="avcodec"
fftfilt_filter_select="rdft"
find_rect_filter_deps="avcodec avformat gpl"
firequalizer_filter_deps="avcodec"
firequalizer_filter_select="rdft"
framerate_filter_select="pixelutils"
fspp_filter_deps="gpl"
geq_filter_deps="gpl"
histeq_filter_deps="gpl"
hqdn3d_filter_deps="gpl"
interlace_filter_deps="gpl"
kerndeint_filter_deps="gpl"
mcdeint_filter_deps="avcodec gpl"
movie_filter_deps="avcodec avformat"
mpdecimate_filter_deps="gpl"
mpdecimate_filter_select="pixelutils"
mptestsrc_filter_deps="gpl"
negate_filter_deps="lut_filter"
nnedi_filter_deps="gpl"
owdenoise_filter_deps="gpl"
pan_filter_deps="swresample"
perspective_filter_deps="gpl"
phase_filter_deps="gpl"
pp7_filter_deps="gpl"
pp_filter_deps="gpl postproc"
pullup_filter_deps="gpl"
removelogo_filter_deps="avcodec avformat swscale"
repeatfields_filter_deps="gpl"
resample_filter_deps="avresample"
sab_filter_deps="gpl swscale"
scale2ref_filter_deps="swscale"
scale_filter_deps="swscale"
select_filter_select="pixelutils"
showcqt_filter_deps="avcodec avformat swscale"
showcqt_filter_select="fft"
showfreqs_filter_deps="avcodec"
showfreqs_filter_select="fft"
showspectrum_filter_deps="avcodec"
showspectrum_filter_select="fft"
showspectrumpic_filter_deps="avcodec"
showspectrumpic_filter_select="fft"
signature_filter_deps="gpl avcodec avformat"
smartblur_filter_deps="gpl swscale"
spectrumsynth_filter_deps="avcodec"
spectrumsynth_filter_select="fft"
spp_filter_deps="gpl avcodec"
spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
stereo3d_filter_deps="gpl"
subtitles_filter_deps="avformat avcodec libass"
super2xsai_filter_deps="gpl"
pixfmts_super2xsai_test_deps="super2xsai_filter"
tinterlace_filter_deps="gpl"
tinterlace_merge_test_deps="tinterlace_filter"
tinterlace_pad_test_deps="tinterlace_filter"
tonemap_filter_deps="const_nan"
uspp_filter_deps="gpl avcodec"
vaguedenoiser_filter_deps="gpl"
zoompan_filter_deps="swscale"
scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

# examples
avio_dir_cmd_deps="avformat avutil"
avio_reading_deps="avformat avcodec avutil"
decode_audio_example_deps="avcodec avutil"
decode_video_example_deps="avcodec avutil"
demuxing_decoding_example_deps="avcodec avformat avutil"
encode_audio_example_deps="avcodec avutil"
encode_video_example_deps="avcodec avutil"
extract_mvs_example_deps="avcodec avformat avutil"
filter_audio_example_deps="avfilter avutil"
filtering_audio_example_deps="avfilter avcodec avformat avutil"
filtering_video_example_deps="avfilter avcodec avformat avutil"
http_multiclient_example_deps="avformat avutil fork"
hw_decode_example_deps="avcodec avformat avutil"
metadata_example_deps="avformat avutil"
muxing_example_deps="avcodec avformat avutil swscale"
remuxing_example_deps="avcodec avformat avutil"
resampling_audio_example_deps="avutil swresample"
scaling_video_example_deps="avutil swscale"
transcode_aac_example_deps="avcodec avformat swresample"
transcoding_example_deps="avfilter avcodec avformat avutil"

# libraries, in linking order
avcodec_deps="avutil"
avcodec_select="null_bsf"
avdevice_deps="avformat avcodec avutil"
avfilter_deps="avutil"
avformat_deps="avcodec avutil"
avformat_suggest="network"
avresample_deps="avutil"
postproc_deps="avutil gpl"
swresample_deps="avutil"
swscale_deps="avutil"

# programs
ffmpeg_deps="avcodec avfilter avformat swresample"
ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
               null_filter
               trim_filter"
ffprobe_deps="avcodec avformat"
ffserver_deps="avformat fork sarestart"
ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

# mythtv dependencies
audio_oss_deps_any="soundcard_h sys_soundcard_h"
dvb_deps="backend"
firewire_deps="backend"
ivtv_deps="backend v4l2"
hdpvr_deps="backend v4l2"
hdhomerun_deps="backend"
vbox_deps="backend"
ceton_deps="backend"
mpegtsraw_demuxer_deps="merge_libavformat_mpegts_c"
mythtranscode_deps="backend frontend"
opengl_deps_any="agl_h GL_gl_h EGL_egl_h GLES2_gl2_h darwin windows x11"
opengles_deps="GLES2_gl2_h"
egl_deps="EGL_egl_h"
v4l2_deps="linux_videodev2_h"
v4l2prime_deps="v4l2 drm"
v4l1_deps="backend v4l2 linux_videodev_h"
xrandr_deps="x11"
asi_deps="backend"

# default parameters

pre_logfile="config.ep"
logfile="$pre_logfile"
compile_type="profile"

# installation paths
prefix_default="/usr/local"
bindir_default='${prefix}/bin'
datadir_default='${prefix}/share/mythtv'
docdir_default='${prefix}/share/doc/ffmpeg'
incdir_default='${prefix}/include/mythtv'
libdir_default='${prefix}/lib'
mandir_default='${prefix}/share/man'

libdir_name='lib'

# toolchain
ar_default="ar"
cc_default="gcc"
cxx_default="g++"
host_cc_default="gcc"
doxygen_default="doxygen"
install="install"
ln_s_default="ln -s -f"
nm_default="nm -g"
pkg_config_default=pkg-config
ranlib_default="ranlib"
strip_default="strip"
version_script='--version-script'
x86asmexe_default="nasm"
windres_default="windres"
nvcc_default="nvcc"
nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
striptype="direct"

# MythTV toolchain
ccache="yes"
distcc="yes"
qmake_default="qmake"
qmakespecs_default=""
python_default="python3"

#Bluray
bdj_type="j2se"

# machine
arch_default=$(uname -m)
cpu="generic"
processor=`uname -p 2>/dev/null`
processor_flags=""
tune="generic"

if test -f /proc/cpuinfo ; then
    if test x"$processor" = x"" -o x"$processor" = x"$arch_default" -o \
            x"$processor" = x"unknown" ; then
        processor=`cat /proc/cpuinfo | grep "model name" | head -n 1`
    fi
    processor_flags=`cat /proc/cpuinfo | grep "flags" | head -n 1`
fi

# Mac OS X equivalent
if test -f /usr/bin/hostinfo ; then
    arch=`arch`
    if test x"$arch" = x"ppc" -o x"$arch" = x"ppc64" ; then
        processor=`/usr/bin/hostinfo | grep "Processor type:"`
        processor=${processor#Processor type: *}
        processor=${processor% (*}
        tune=$processor
    else
            # 10.4 only:
            processor=`/usr/sbin/sysctl -n machdep.cpu.model_string 2>/dev/null`
            if test x"$processor" = x"" ; then
                # On 10.5, this contains the type of CPU also:
                processor=`/usr/sbin/sysctl -n machdep.cpu.brand_string`
            fi
            processor_flags=`/usr/sbin/sysctl -n machdep.cpu.features`
            processor_flags=`echo $processor_flags | tr "[A-Z]" "[a-z]"`
    fi
fi

# OS
target_os_default=$(tolower $(uname -s))
host_os=$target_os_default

# machine
if test "$target_os_default" = aix; then
    arch_default=$(uname -p)
    strip_default="strip -X32_64"
else
    arch_default=$(uname -m)
fi
cpu="generic"
intrinsics="none"

# configurable options
enable $PROGRAM_LIST
enable $(filter_out avresample $LIBRARY_LIST)
enable stripping

enable asm
enable debug
enable faan faandct faanidct
enable optimizations
enable swscale_alpha
enable valgrind_backtrace

sws_max_filter_size_default=256
set_default sws_max_filter_size

# mythtv settings
enable gpl
disable sdl2
disable sdl
disable ffplay

CONFIG_DEFINES=""
CONFIG_INCLUDEPATH=""
PROFILEFLAGS=""

audio_pulse="default"
audio_pulseoutput="default"
audio_alsa="default"
audio_jack="default"

enable audio_oss
enable bindings_perl
enable bindings_python
enable bindings_php
enable dvb
enable ffmpeg_pthreads
enable firewire
enable frontend
enable hdhomerun
enable vbox
enable ceton
enable hdpvr
enable ivtv
enable asi
enable lamemp3
enable libass
enable libcec
enable libcrypto
enable libdns_sd
enable libxml2
enable lirc
enable mediacodec
enable vaapi
enable nvdec
enable mheg
enable mmal
enable mythtranscode
enable opengl
enable opengles
enable egl
enable symbol_visibility
enable deprecation_warnings
enable v4l1
enable v4l2
enable v4l2prime
enable x11
enable xrandr
disable indevs
enable libfftw3
enable taglib
enable exiv2
enable systemd_notify
enable systemd_journal
enable libbluray_external

# mythtv paths
dvb_path_default="${sysinclude:-$sysroot/usr/include}"
x11_path_default="${sysinclude:-$sysroot/usr/include}/X11"
libcec_path_default="${sysinclude:-$sysroot/usr/include}"
libxml2_path_default="${sysinclude:-$sysroot/usr/include}/libxml2"
firewiresdk_path_default=""
# build settings
SHFLAGS='-shared -Wl,-soname,$$(@F)'
LIBPREF="libmyth"
LIBSUF=".a"
FULLNAME='$(NAME)$(BUILDSUF)'
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
SLIBPREF="libmyth"
SLIBSUF=".so"
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
VERSION_SCRIPT_POSTPROCESS_CMD="cat"

asflags_filter=echo
cflags_filter=echo
ldflags_filter=echo
cxxppflags_filter=echo

AS_C='-c'
AS_O='-o $@'
CC_C='-c'
CC_E='-E -o $@'
CC_O='-o $@'
CXX_C='-c'
CXX_O='-o $@'
OBJCC_C='-c'
OBJCC_E='-E -o $@'
OBJCC_O='-o $@'
X86ASM_O='-o $@'
LD_O='-o $@'
LD_LIB='-l%'
LD_MYTH_LIB='-lmyth%'
LD_PATH='-L'
HOSTCC_C='-c'
HOSTCC_O='-o $@'
HOSTLD_O='-o $@'
NVCC_C='-c'
NVCC_O='-o $@'

host_extralibs='-lm'
host_cflags_filter=echo
host_ldflags_filter=echo

target_path='$(CURDIR)'

# since the object filename is not given with the -MM flag, the compiler
# is only able to print the basename, and we must add the path ourselves
DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
DEPFLAGS='-MM'

# find source path
source_path="$(dirname "$0")"
enable source_path_used
if test -f configure; then
    source_path="$(pwd)"
    disable source_path_used
else
    source_path="$(cd "$source_path"; pwd)"
    case "$source_path" in
        *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
    esac
    test -e "$source_path/config.h" &&
        die "Out of tree builds are impossible with config.h in source dir."
fi

for v in "$@"; do
    MYTHTV_CONFIGURATION="${MYTHTV_CONFIGURATION# } ${v}"
done

find_things(){
    thing=$1
    pattern=$2
    file=$source_path/$3
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
}

ENCODER_LIST=$(find_things  encoder  ENC      external/FFmpeg/libavcodec/allcodecs.c)
DECODER_LIST=$(find_things  decoder  DEC      external/FFmpeg/libavcodec/allcodecs.c)
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  external/FFmpeg/libavcodec/allcodecs.c)
PARSER_LIST=$(find_things   parser   PARSER   external/FFmpeg/libavcodec/allcodecs.c)
MUXER_LIST=$(find_things    muxer    _MUX     external/FFmpeg/libavformat/allformats.c)
DEMUXER_LIST=$(find_things  demuxer  DEMUX    external/FFmpeg/libavformat/allformats.c)
OUTDEV_LIST=$(find_things   outdev   OUTDEV   external/FFmpeg/libavdevice/alldevices.c)
INDEV_LIST=$(find_things    indev    _IN      external/FFmpeg/libavdevice/alldevices.c)
FILTER_LIST=$(find_things   filter   FILTER   external/FFmpeg/libavfilter/allfilters.c)

find_things_extern(){
    thing=$1
    pattern=$2
    file=$source_path/$3
    sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
}

BSF_LIST=$(find_things_extern bsf AVBitStreamFilter external/FFmpeg/libavcodec/bitstream_filters.c)
PROTOCOL_LIST=$(find_things_extern protocol URLProtocol external/FFmpeg/libavformat/protocols.c)

ALL_COMPONENTS="
    $BSF_LIST
    $DECODER_LIST
    $DEMUXER_LIST
    $ENCODER_LIST
    $FILTER_LIST
    $HWACCEL_LIST
    $INDEV_LIST
    $MUXER_LIST
    $OUTDEV_LIST
    $PARSER_LIST
    $PROTOCOL_LIST
"

for n in $COMPONENT_LIST; do
    v=$(toupper ${n%s})_LIST
    eval enable \$$v
    eval ${n}_if_any="\$$v"
done

enable $ARCH_EXT_LIST

die_unknown(){
    echo "Unknown option \"$1\"."
    echo "See $0 --help for available options."
    exit 1
}

print_in_columns() {
    cols=$(expr $ncols / 24)
    cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
}

show_list() {
    suffix=_$1
    shift
    echo $* | sed s/$suffix//g | print_in_columns
    exit 0
}

rand_list(){
    IFS=', '
    set -- $*
    unset IFS
    for thing; do
        comp=${thing%:*}
        prob=${thing#$comp}
        prob=${prob#:}
        is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
        echo "prob ${prob:-0.5}"
        printf '%s\n' $comp
    done
}

do_random(){
    action=$1
    shift
    random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
    $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
}

if [ -e config.log ] ; then
    PCONF=$(tail -n 1 config.log | grep configure | sed 's/.\/configure//g')
    for opt in "$@" ; do
        if test x"$opt" != x"--prev" -a x"$opt" != x"--previous" ; then
            OTHOPT="${OTHOPT# }${opt}"
        fi
        if test x"$opt" = x"--prev" -o x"$opt" = x"--previous" ; then
            if test x"$PCONF" != "--prev" ; then
                PREV="yes";
            fi
        fi
    done
    if test x"$PREV" = x"yes"; then
        echo "Options: $PCONF $OTHOPT"
        ./configure $PCONF $OTHOPT
        exit
    fi
fi

for opt do
    optval="${opt#*=}"
    case "$opt" in
#Myth options
        --compile-type=*) compile_type=$optval
        ;;
        --libdir-name=*) libdir_name=$optval
        ;;
        --extra-cxxflags=*) add_cxxflags $optval
        ;;
        --firewire-sdk=*) firewiresdk_path="${optval}"
        ;;
        --arch=*) arch=$optval && enable cpu_override
        ;;
        --cpu=*) cpu=$optval && enable cpu_override
        ;;
        --tune=*) tune=$optval
        ;;
        --disable-ccache) disable ccache
        ;;
        --disable-distcc) disable distcc
        ;;
# disabled due to abuse in Gentoo ebuild
        --disable-frontend)
        ;;
# disabled due to abuse in Gentoo ebuild
        --disable-backend)
        ;;
        --enable-mac-bundle) enable mac_bundle
        ;;
        --previous|--prev)
            echo "No history of previous configure parameters."
        ;;
        --with-bindings=*)
            tmp_bindings=`echo ${optval} | sed -e 's/,/ /g'`
            for binding in ${tmp_bindings} ; do
                if test x"${binding}" = x"perl"; then
                    bindings_perl="yes"
                fi
                if test x"${binding}" = x"python"; then
                    bindings_python="yes"
                fi
                if test x"${binding}" = x"php"; then
                    bindings_php="yes"
                fi
            done
        ;;
        --without-bindings=*)
            tmp_bindings=`echo ${optval} | sed -e 's/,/ /g'`
            for binding in ${tmp_bindings} ; do
                if test x"${binding}" = x"perl"; then
                    bindings_perl="no"
                fi
                if test x"${binding}" = x"python"; then
                    bindings_python="no"
                fi
                if test x"${binding}" = x"php"; then
                    bindings_php="no"
                fi
            done
        ;;
        --perl-config-opts=*)
          PERL_CONFIG_OPTS=`echo ${optval}`
        ;;
#FFmpeg original
        --extra-ldflags=*)
            add_ldflags $optval
	    ffmpeg_extra_ldflags="$optval"
        ;;
        --extra-ldexeflags=*)
            add_ldexeflags $optval
        ;;
        --extra-ldlibflags=*)
            add_ldlibflags $optval
        ;;
        --extra-libs=*)
            add_extralibs $optval
        ;;
        --disable-devices)
            disable $INDEV_LIST $OUTDEV_LIST
        ;;
        --enable-debug=*)
            debuglevel="$optval"
        ;;
        --disable-programs)
            disable $PROGRAM_LIST
        ;;
        --disable-everything)
            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
        ;;
        --disable-all)
            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
            disable $LIBRARY_LIST $PROGRAM_LIST doc
            enable avutil
        ;;
        --enable-random|--disable-random)
            action=${opt%%-random}
            do_random ${action#--} $COMPONENT_LIST
        ;;
        --enable-random=*|--disable-random=*)
            action=${opt%%-random=*}
            do_random ${action#--} $optval
        ;;
        --enable-*=*|--disable-*=*)
            eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
            is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
            eval list=\$$(toupper $thing)_LIST
            name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
            list=$(filter "$name" $list)
            [ "$list" = "" ] && warn "Option $opt did not match anything"
            $action $list
        ;;
        --enable-yasm|--disable-yasm)
            warn "The ${opt} option is only provided for compatibility and will be\n"\
                 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
            test $opt = --enable-yasm && x86asm=yes || x86asm=no
        ;;
        --yasmexe=*)
            warn "The --yasmexe option is only provided for compatibility and will be\n"\
                 "removed in the future. Use --x86asmexe instead."
            x86asmexe="$optval"
        ;;
        --enable-?*|--disable-?*)
            eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
            if is_in $option $COMPONENT_LIST; then
                test $action = disable && action=unset
                eval $action \$$(toupper ${option%s})_LIST
            elif is_in $option $CMDLINE_SELECT; then
                $action $option
            else
                die_unknown $opt
            fi
        ;;
        --list-*)
            NAME="${opt#--list-}"
            is_in $NAME $COMPONENT_LIST || die_unknown $opt
            NAME=${NAME%s}
            eval show_list $NAME \$$(toupper $NAME)_LIST
        ;;
        --help|-h) show_help
        ;;
        --quiet|-q) quiet=yes
        ;;
        --fatal-warnings) enable fatal_warnings
        ;;
        --libfuzzer=*)
            libfuzzer_path="$optval"
        ;;
        *)
            optname="${opt%%=*}"
            optname="${optname#--}"
            optname=$(echo "$optname" | sed 's/-/_/g')
            if is_in $optname $CMDLINE_SET; then
                eval $optname='$optval'
            elif is_in $optname $CMDLINE_APPEND; then
                append $optname "$optval"
            else
                die_unknown $opt
            fi
        ;;
    esac
done

if enabled sdl ; then
    enable sdl2
    enable ffplay
fi

#setting default runtime prefix and libdir
if test -n "${prefix}"; then
    runprefix_default=${prefix}
    libdir_default="${prefix}/${libdir_name}"
    shlibdir_default="${prefix}/${libdir_name}"
else
    runprefix_default=${prefix_default}
    libdir_default="${prefix_default}/${libdir_name}"
    shlibdir_default="${prefix_default}/${libdir_name}"
fi

if enabled_any cpu_override cross_compile || test x"$tune" != x"generic" &&
    enabled proc_opt; then
    echo "Warning! --enable-proc-opt shouldn't be used with --arch, --cpu or --tune"
    echo "Disabling it now."
    disable proc_opt
fi

for e in $env; do
    eval "export $e"
done

if disabled autodetect; then

    disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
    disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
fi
# Mark specifically enabled, but normally autodetected libraries as requested.
for lib in $AUTODETECT_LIBS; do
    enabled $lib && request $lib
done
#TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

disabled logging && logfile=/dev/null

die_license_disabled() {
    enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
}

die_license_disabled_gpl() {
    enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
}

map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

# Disable all the library-specific components if the library itself
# is disabled, see AVCODEC_LIST and following _LIST variables.

disable_components(){
    disabled ${1} && disable $(
        eval components="\$$(toupper ${1})_COMPONENTS"
        map 'eval echo \${$(toupper ${v%s})_LIST}' $components
    )
}

map 'disable_components $v' $LIBRARY_LIST

echo "# $0 $MYTHTV_CONFIGURATION" > $logfile
set >> $logfile

test -n "$valgrind" && toolchain="valgrind-memcheck"

enabled ossfuzz && {
    add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
    add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
}

case "$toolchain" in
    *-asan)
        cc_default="${toolchain%-asan}"
        add_cflags  -fsanitize=address
        add_ldflags -fsanitize=address
    ;;
    *-msan)
        cc_default="${toolchain%-msan}"
        add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
        add_ldflags -fsanitize=memory
    ;;
    *-tsan)
        cc_default="${toolchain%-tsan}"
        add_cflags  -fsanitize=thread -fPIE
        add_ldflags -fsanitize=thread -pie
        case "$toolchain" in
            gcc-tsan)
                add_cflags  -fPIC
                add_ldflags -fPIC
                ;;
        esac
    ;;
    *-usan)
        cc_default="${toolchain%-usan}"
        add_cflags  -fsanitize=undefined
        add_ldflags -fsanitize=undefined
    ;;
    valgrind-*)
        target_exec_default="valgrind"
        case "$toolchain" in
            valgrind-massif)
                target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
                ;;
            valgrind-memcheck)
                target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
                ;;
        esac
    ;;
    msvc)
        # Check whether the current MSVC version needs the C99 converter.
        # From MSVC 2013 (compiler major version 18) onwards, it does actually
        # support enough of C99 to build ffmpeg. Default to the new
        # behaviour if the regexp was unable to match anything, since this
        # successfully parses the version number of existing supported
        # versions that require the converter (MSVC 2010 and 2012).
        cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
        if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
            cc_default="cl"
            cxx_default="cl"
        else
            cc_default="c99wrap cl"
            cxx_default="c99wrap cl"
        fi
        ld_default="$source_path/compat/windows/mslink"
        nm_default="dumpbin -symbols"
        ar_default="lib"
        case "$arch" in
        arm*)
            as_default="armasm"
            ;;
        esac
        target_os_default="win32"
        # Use a relative path for TMPDIR. This makes sure all the
        # ffconf temp files are written with a relative path, avoiding
        # issues with msys/win32 path conversion for MSVC parameters
        # such as -Fo<file> or -out:<file>.
        TMPDIR=.
    ;;
    icl)
        cc_default="icl"
        ld_default="xilink"
        nm_default="dumpbin -symbols"
        ar_default="xilib"
        target_os_default="win32"
        TMPDIR=.
    ;;
    gcov)
        add_cflags  -fprofile-arcs -ftest-coverage
        add_ldflags -fprofile-arcs -ftest-coverage
    ;;
    llvm-cov)
        add_cflags -fprofile-arcs -ftest-coverage
        add_ldflags --coverage
    ;;
    hardened)
        add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
        add_cflags   -fno-strict-overflow -fstack-protector-all
        add_ldflags  -Wl,-z,relro -Wl,-z,now
        add_cflags   -fPIE
        add_ldexeflags -fPIE -pie
    ;;
    ?*)
        die "Unknown toolchain $toolchain"
    ;;
esac

test -n "$cross_prefix" && enable cross_compile

if enabled cross_compile; then
    test -n "$arch" && test -n "$target_os" ||
        die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
fi

ar_default="${cross_prefix}${ar_default}"
cc_default="${cross_prefix}${cc_default}"
cxx_default="${cross_prefix}${cxx_default}"
nm_default="${cross_prefix}${nm_default}"
pkg_config_default="${cross_prefix}${pkg_config_default}"
if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
    ranlib_default="${cross_prefix}${ranlib_default} -D"
else
    ranlib_default="${cross_prefix}${ranlib_default}"
fi
strip_default="${cross_prefix}${strip_default}"
windres_default="${cross_prefix}${windres_default}"

sysinclude_default="${sysroot}/usr/include"

set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
    target_exec target_os x86asmexe nvcc
enabled cross_compile || host_cc_default=$cc
set_default host_cc

pkg_config_fail_message=""
if ! $pkg_config --version >/dev/null 2>&1; then
    warn "$pkg_config not found, library detection may fail."
    pkg_config=false
elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
    pkg_config_fail_message="
Note: When building a static binary, add --pkg-config-flags=\"--static\"."
fi

set_default qmake qmakespecs python x86asmexe

if test $doxygen != $doxygen_default && \
  ! $doxygen --version >/dev/null 2>&1; then
    warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
fi

exesuf() {
    case $1 in
        mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
    esac
}

EXESUF=$(exesuf $target_os)
HOSTEXESUF=$(exesuf $host_os)

# set temporary file name
: ${TMPDIR:=$TEMPDIR}
: ${TMPDIR:=$TMP}
: ${TMPDIR:=/tmp}

if [ -n "$tempprefix" ] ; then
    mktemp(){
        tmpname="$tempprefix.${HOSTNAME}.${UID}"
        echo "$tmpname"
        mkdir "$tmpname"
    }
elif ! check_cmd mktemp -u XXXXXX; then
    # simple replacement for missing mktemp
    # NOT SAFE FOR GENERAL USE
    mktemp(){
        tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
        echo "$tmpname"
        mkdir "$tmpname"
    }
fi

FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
    die "Unable to create temporary directory in $TMPDIR."

tmpfile(){
    tmp="${FFTMPDIR}/test"$2
    (set -C; exec > $tmp) 2> /dev/null ||
        die "Unable to create temporary file in $FFTMPDIR."
    eval $1=$tmp
}

trap 'rm -rf -- "$FFTMPDIR"' EXIT
trap 'exit 2' HUP INT TERM

tmpfile TMPC  .c
tmpfile TMPCPP .cpp
tmpfile TMPE  $EXESUF
tmpfile TMPH  .h
tmpfile TMPM   .m
tmpfile TMPO  .o
tmpfile TMPS  .S
tmpfile TMPSH .sh
tmpfile TMPV  .ver
tmpfile TMPMAK .mak
tmpfile TMPPRO .pro

unset -f mktemp

chmod +x $TMPE

# make sure we can execute files in $TMPDIR
cat > $TMPSH 2>> $logfile <<EOF
#! /bin/sh
EOF
chmod +x $TMPSH >> $logfile 2>&1
if ! $TMPSH >> $logfile 2>&1; then
    cat <<EOF
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
variable to another directory and make sure that it is not mounted noexec.
EOF
    die "Sanity test failed."
fi

armasm_flags(){
    for flag; do
        case $flag in
            # Filter out MSVC cl.exe options from cflags that shouldn't
            # be passed to gas-preprocessor
            -M[TD]*)                                            ;;
            *)                  echo $flag                      ;;
        esac
   done
}

ccc_flags(){
    for flag; do
        case $flag in
            -std=c99)           echo -c99                       ;;
            -mcpu=*)            echo -arch ${flag#*=}           ;;
            -mieee)             echo -ieee                      ;;
            -O*|-fast)          echo $flag                      ;;
            -fno-math-errno)    echo -assume nomath_errno       ;;
            -g)                 echo -g3                        ;;
            -Wall)              echo -msg_enable level2         ;;
            -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
            -Wl,*)              echo $flag                      ;;
            -f*|-W*)                                            ;;
            *)                  echo $flag                      ;;
        esac
   done
}

cparser_flags(){
    for flag; do
        case $flag in
            -Wno-switch)             echo -Wno-switch-enum ;;
            -Wno-format-zero-length) ;;
            -Wdisabled-optimization) ;;
            -Wno-pointer-sign)       echo -Wno-other ;;
            *)                       echo $flag ;;
        esac
    done
}

msvc_common_flags(){
    for flag; do
        case $flag in
            # In addition to specifying certain flags under the compiler
            # specific filters, they must be specified here as well or else the
            # generic catch all at the bottom will print the original flag.
            -Wall)                ;;
            -Wextra)              ;;
            -std=c99)             ;;
            # Common flags
            -fomit-frame-pointer) ;;
            -g)                   echo -Z7 ;;
            -fno-math-errno)      ;;
            -fno-common)          ;;
            -fno-signed-zeros)    ;;
            -fPIC)                ;;
            -mthumb)              ;;
            -march=*)             ;;
            -lz)                  echo zlib.lib ;;
            -lx264)               echo libx264.lib ;;
            -lstdc++)             ;;
            -l*)                  echo ${flag#-l}.lib ;;
            -LARGEADDRESSAWARE)   echo $flag ;;
            -L*)                  echo -libpath:${flag#-L} ;;
            *)                    echo $flag ;;
        esac
    done
}

msvc_flags(){
    msvc_common_flags "$@"
    for flag; do
        case $flag in
            -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
                                       -wd4554 ;;
            -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
                                       -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
                                       -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
                                       -wd4307 \
                                       -wd4273 -wd4554 -wd4701 -wd4703 ;;
        esac
    done
}

icl_flags(){
    msvc_common_flags "$@"
    for flag; do
        case $flag in
            # Despite what Intel's documentation says -Wall, which is supported
            # on Windows, does enable remarks so disable them here.
            -Wall)                echo $flag -Qdiag-disable:remark ;;
            -std=c99)             echo -Qstd=c99 ;;
            -flto)                echo -ipo ;;
        esac
    done
}

icc_flags(){
    for flag; do
        case $flag in
            -flto)                echo -ipo ;;
            *)                    echo $flag ;;
        esac
    done
}

pgi_flags(){
    for flag; do
        case $flag in
            -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
            -fomit-frame-pointer) echo -Mnoframe ;;
            -g)                   echo -gopt ;;
            *)                    echo $flag ;;
        esac
    done
}

suncc_flags(){
    for flag; do
        case $flag in
            -march=*|-mcpu=*)
                case "${flag#*=}" in
                    native)                   echo -xtarget=native       ;;
                    v9|niagara)               echo -xarch=sparc          ;;
                    ultrasparc)               echo -xarch=sparcvis       ;;
                    ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
                    i586|pentium)             echo -xchip=pentium        ;;
                    i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
                    pentium3*|c3-2)           echo -xtarget=pentium3     ;;
                    pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
                    pentium4*)          echo -xtarget=pentium4           ;;
                    prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
                    *-sse3)             echo -xarch=sse3                 ;;
                    core2)              echo -xarch=ssse3 -xchip=core2   ;;
                    bonnell)                   echo -xarch=ssse3         ;;
                    corei7|nehalem)            echo -xtarget=nehalem     ;;
                    westmere)                  echo -xtarget=westmere    ;;
                    silvermont)                echo -xarch=sse4_2        ;;
                    corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
                    core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
                                               echo -xarch=avx           ;;
                    amdfam10|barcelona)        echo -xtarget=barcelona   ;;
                    btver1)                    echo -xarch=amdsse4a      ;;
                    btver2|bdver*|znver*)      echo -xarch=avx           ;;
                    athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
                    k8|opteron|athlon64|athlon-fx)
                                               echo -xarch=sse2a         ;;
                    athlon*)                   echo -xarch=pentium_proa  ;;
                esac
                ;;
            -std=c99)             echo -xc99              ;;
            -fomit-frame-pointer) echo -xregs=frameptr    ;;
            -fPIC)                echo -KPIC -xcode=pic32 ;;
            -W*,*)                echo $flag              ;;
            -f*-*|-W*|-mimpure-text)                      ;;
            -shared)              echo -G                 ;;
            *)                    echo $flag              ;;
        esac
    done
}

tms470_flags(){
    for flag; do
        case $flag in
            -march=*|-mcpu=*)
                case "${flag#*=}" in
                    armv7-a|cortex-a*)      echo -mv=7a8 ;;
                    armv7-r|cortex-r*)      echo -mv=7r4 ;;
                    armv7-m|cortex-m*)      echo -mv=7m3 ;;
                    armv6*|arm11*)          echo -mv=6   ;;
                    armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
                                            echo -mv=5e  ;;
                    armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
                esac
                ;;
            -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
            -mfpu=vfp)      echo --float_support=vfpv2        ;;
            -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
            -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
            -msoft-float)   echo --float_support=vfplib       ;;
            -O[0-3]|-mf=*)  echo $flag                        ;;
            -g)             echo -g -mn                       ;;
            -pds=*)         echo $flag                        ;;
            -D*|-I*)        echo $flag                        ;;
            --gcc|--abi=*)  echo $flag                        ;;
            -me)            echo $flag                        ;;
        esac
    done
}

probe_cc(){
    pfx=$1
    _cc=$2
    first=$3

    unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
    unset _ld_o _ldflags _ld_lib _ld_path
    unset _depflags _DEPCMD _DEPFLAGS
    _flags_filter=echo

    if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
        true # no-op to avoid reading stdin in following checks
    elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
        _type=llvm_gcc
        gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
        _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
        _cflags_speed='-O3'
        _cflags_size='-Os'
    elif $_cc -v 2>&1 | grep -qi ^gcc; then
        _type=gcc
        gcc_version=$($_cc --version | head -n1)
        gcc_basever=$($_cc -dumpversion)
        gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
        gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
        _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
        case $gcc_basever in
            2) ;;
            2.*) ;;
            *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
        esac
        if [ "$first" = true ]; then
            case $gcc_basever in
                4.2*)
                warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
            esac
        fi
        _cflags_speed='-O3'
        _cflags_size='-Os'
    elif $_cc --version 2>/dev/null | grep -q ^icc; then
        _type=icc
        _ident=$($_cc --version | head -n1)
        _depflags='-MMD'
        _cflags_speed='-O3'
        _cflags_size='-Os'
        _cflags_noopt='-O1'
        _flags_filter=icc_flags
    elif $_cc -v 2>&1 | grep -q xlc; then
        _type=xlc
        _ident=$($_cc -qversion 2>/dev/null | head -n1)
        _cflags_speed='-O5'
        _cflags_size='-O5 -qcompact'
    elif $_cc -V 2>/dev/null | grep -q Compaq; then
        _type=ccc
        _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
        _DEPFLAGS='-M'
        _cflags_speed='-fast'
        _cflags_size='-O1'
        _flags_filter=ccc_flags
    elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
        test -d "$sysroot" || die "No valid sysroot specified."
        _type=armcc
        _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
        armcc_conf="$PWD/armcc.conf"
        $_cc --arm_linux_configure                 \
             --arm_linux_config_file="$armcc_conf" \
             --configure_sysroot="$sysroot"        \
             --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
             die "Error creating armcc configuration file."
        $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
        _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
        as_default="${cross_prefix}gcc"
        _depflags='-MMD'
        _cflags_speed='-O3'
        _cflags_size='-Os'
    elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
        _type=tms470
        _ident=$($_cc -version | head -n1 | tr -s ' ')
        _flags='--gcc --abi=eabi -me'
        _cc_e='-ppl -fe=$@'
        _cc_o='-fe=$@'
        _depflags='-ppa -ppd=$(@:.o=.d)'
        _cflags_speed='-O3 -mf=5'
        _cflags_size='-O3 -mf=2'
        _flags_filter=tms470_flags
    elif $_cc -v 2>&1 | grep -q clang; then
        _type=clang
        _ident=$($_cc --version 2>/dev/null | head -n1)
        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
        _cflags_speed='-O3'
        _cflags_size='-Oz'
    elif $_cc -V 2>&1 | grep -q Sun; then
        _type=suncc
        _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
        _DEPFLAGS='-xM1 -xc99'
        _ldflags='-std=c99'
        _cflags_speed='-O5'
        _cflags_size='-O5 -xspace'
        _flags_filter=suncc_flags
    elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
        _type=pathscale
        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
        _cflags_speed='-O2'
        _cflags_size='-Os'
        _flags_filter='filter_out -Wdisabled-optimization'
    elif $_cc -v 2>&1 | grep -q Open64; then
        _type=open64
        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
        _cflags_speed='-O2'
        _cflags_size='-Os'
        _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
    elif $_cc -V 2>&1 | grep -q Portland; then
        _type=pgi
        _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
        opt_common='-alias=ansi -Mdse -Mlre -Mpre'
        _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
        _cflags_size="-O2 -Munroll=c:1 $opt_common"
        _cflags_noopt="-O"
        _flags_filter=pgi_flags
    elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
        _type=armasm
        _ident=$($_cc | head -n1)
        # 4509: "This form of conditional instruction is deprecated"
        _flags="-nologo -ignore 4509"
        _flags_filter=armasm_flags
    elif $_cc 2>&1 | grep -q Intel; then
        _type=icl
        _ident=$($_cc 2>&1 | head -n1)
        _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
        # Not only is O3 broken on 13.x+ but it is slower on all previous
        # versions (tested) as well.
        _cflags_speed="-O2"
        _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
        if $_cc 2>&1 | grep -q Linker; then
            _ld_o='-out:$@'
        else
            _ld_o='-Fe$@'
        fi
        _cc_o='-Fo$@'
        _cc_e='-P'
        _flags_filter=icl_flags
        _ld_lib='lib%.a'
        _ld_path='-libpath:'
        # -Qdiag-error to make icl error when seeing certain unknown arguments
        _flags='-nologo -Qdiag-error:4044,10157'
        # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
        # with MSVC which enables it by default.
        _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
        disable stripping
    elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
        # lld can emulate multiple different linkers; in ms link.exe mode,
        # the -? parameter gives the help output which contains an identifyable
        # string, while it gives an error in other modes.
        _type=lld-link
        # The link.exe mode doesn't have a switch for getting the version,
        # but we can force it back to gnu mode and get the version from there.
        _ident=$($_cc -flavor gnu --version 2>/dev/null)
        _ld_o='-out:$@'
        _flags_filter=msvc_flags
        _ld_lib='lib%.a'
        _ld_path='-libpath:'
    elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
        _type=msvc
        _ident=$($_cc 2>&1 | head -n1)
        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
        _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
        _cflags_speed="-O2"
        _cflags_size="-O1"
        _cflags_noopt="-O1"
        if $_cc -nologo- 2>&1 | grep -q Linker; then
            _ld_o='-out:$@'
        else
            _ld_o='-Fe$@'
        fi
        _cc_o='-Fo$@'
        _cc_e='-P -Fi$@'
        _flags_filter=msvc_flags
        _ld_lib='lib%.a'
        _ld_path='-libpath:'
        _flags='-nologo'
        disable stripping
    elif $_cc --version 2>/dev/null | grep -q ^cparser; then
        _type=cparser
        _ident=$($_cc --version | head -n1)
        _depflags='-MMD'
        _cflags_speed='-O4'
        _cflags_size='-O2'
        _flags_filter=cparser_flags
    fi

    eval ${pfx}_type=\$_type
    eval ${pfx}_ident=\$_ident
}

set_ccvars(){
    eval ${1}_C=\${_cc_c-\${${1}_C}}
    eval ${1}_E=\${_cc_e-\${${1}_E}}
    eval ${1}_O=\${_cc_o-\${${1}_O}}

    if [ -n "$_depflags" ]; then
        eval ${1}_DEPFLAGS=\$_depflags
    else
        eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
        eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
        eval DEP${1}FLAGS=\$_flags
    fi
}

probe_cc cc "$cc" "true"
cflags_filter=$_flags_filter
cflags_speed=$_cflags_speed
cflags_size=$_cflags_size
cflags_noopt=$_cflags_noopt
add_cflags $_flags $_cflags
cc_ldflags=$_ldflags
set_ccvars CC
set_ccvars CXX

probe_cc hostcc "$host_cc"
host_cflags_filter=$_flags_filter
host_cflags_speed=$_cflags_speed
add_host_cflags  $_flags $_cflags
set_ccvars HOSTCC

test -n "$cc_type" && enable $cc_type ||
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"


if $cxx -v 2>&1 | grep -qi ^gcc; then
    cxx_type=gxx
    gxx_version=$($cxx -dumpversion)
    gxx_major=$(echo $gxx_version | sed "s/\([0-9]*\).*/\\1/")
elif $cxx --version 2>/dev/null | grep -q Intel; then
    cxx_type=icpc
    gxx_version="AV_STRINGIFY(__INTEL_COMPILER)"
    cxx_ident=$($cxx --version | head -n1)
    icpc_version=$($cxx -dumpversion)
    speed_cxxflags='-O3'
    size_cxxflags='-Os'
    noopt_cxxflags='-O1'
elif $cxx --version 2>/dev/null | grep -q clang; then
    cxx_type=clangxx
    gxx_version="AV_STRINGIFY(__CLANG_COMPILER)"
    cxx_ident=$($cxx --version | head -n1)
    clangxx_version=$($cxx -dumpversion) # GCC equivalent version
    clangxx_major=$(echo $cxx_ident | sed "s/.*version \([0-9]*\).*/\\1/")
    speed_cxxflags='-O3'
    size_cxxflags='-Os'
    noopt_cxxflags='-O1'
fi

test -n "$cxx_type" && enable $cxx_type ||
    warn "Unknown C++ compiler $cxx, unable to select optimal CXXFLAGS"

: ${as_default:=$cc}
: ${objcc_default:=$cc}
: ${dep_cc_default:=$cc}
: ${ld_default:=$cc}
: ${host_ld_default:=$host_cc}
set_default ar as objcc dep_cc ld ln_s host_ld windres

probe_cc as "$as"
asflags_filter=$_flags_filter
add_asflags $_flags $_cflags
set_ccvars AS

probe_cc objcc "$objcc"
objcflags_filter=$_flags_filter
add_objcflags $_flags $_cflags
set_ccvars OBJC

probe_cc ld "$ld"
ldflags_filter=$_flags_filter
add_ldflags $_flags $_ldflags
test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
LD_O=${_ld_o-$LD_O}
LD_LIB=${_ld_lib-$LD_LIB}
LD_PATH=${_ld_path-$LD_PATH}

probe_cc hostld "$host_ld"
host_ldflags_filter=$_flags_filter
add_host_ldflags $_flags $_ldflags
HOSTLD_O=${_ld_o-$HOSTLD_O}

if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
    probe_cc depcc "$dep_cc"
    CCDEP=${_DEPCMD:-$DEPCMD}
    CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
    DEPCCFLAGS=$_flags
fi

if $ar 2>&1 | grep -q Microsoft; then
    arflags="-nologo"
    ar_o='-out:$@'
elif $ar 2>&1 | grep -q 'Texas Instruments'; then
    arflags="rq"
    ar_o='$@'
elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
    arflags='-Xany -r -c'
    ar_o='$@'
elif $ar 2>&1 | grep -q "\[D\] "; then
    arflags="rcD"
    ar_o='$@'
else
    arflags="rc"
    ar_o='$@'
fi

add_cflags $extra_cflags
add_cxxflags $extra_cxxflags
add_objcflags $extra_objcflags
add_asflags $extra_cflags

if test -n "$sysroot"; then
    case "$cc_type" in
        gcc|llvm_gcc|clang)
            add_cppflags --sysroot="$sysroot"
            add_ldflags --sysroot="$sysroot"
# On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
            add_cppflags -isysroot "$sysroot"
            add_ldflags -isysroot "$sysroot"
            add_cxxppflags --sysroot="$sysroot"
        ;;
        tms470)
            add_cppflags -I"$sysinclude"
            add_ldflags  --sysroot="$sysroot"
            add_cxxppflags -I"$sysinclude"
        ;;
    esac
fi

if test "$cpu" = host; then
    enabled cross_compile &&
        die "--cpu=host makes no sense when cross-compiling."

    case "$cc_type" in
        gcc|llvm_gcc)
            check_native(){
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
                sed -n "/cc1.*$1=/{
                            s/.*$1=\\([^ ]*\\).*/\\1/
                            p
                            q
                        }" $TMPE
            }
            cpu=$(check_native -march || check_native -mcpu)
        ;;
        clang)
            check_native(){
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
                sed -n "/cc1.*-target-cpu /{
                            s/.*-target-cpu \\([^ ]*\\).*/\\1/
                            p
                            q
                        }" $TMPE
            }
            cpu=$(check_native -march)
        ;;
    esac

    if test "${cpu:-host}" = host ; then
        enable proc_opt_old
        cpu="$arch"
    fi

    test "${cpu:-host}" = host &&
        die "--cpu=host not supported with compiler $cc"
fi

# Deal with common $arch aliases
case "$arch" in
    aarch64|arm64)
        arch="aarch64"
    ;;
    arm*|iPad*|iPhone*)
        arch="arm"
    ;;
    mips*|IP*)
        case "$arch" in
        *el)
            add_cppflags -EL
            add_ldflags -EL
        ;;
        *eb)
            add_cppflags -EB
            add_ldflags -EB
        ;;
        esac
        arch="mips"
    ;;
    parisc*|hppa*)
        arch="parisc"
    ;;
    "Power Macintosh"|ppc*|powerpc*)
        arch="ppc"
    ;;
    s390|s390x)
        arch="s390"
    ;;
    sh4|sh)
        arch="sh4"
    ;;
    sun4*|sparc*)
        arch="sparc"
    ;;
    tilegx|tile-gx)
        arch="tilegx"
    ;;
    i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
        arch="x86"
    ;;
esac

is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
enable $arch

# if no tune setting and we know cpu class look at $processor
if enabled proc_opt_old; then
# first try to tune based on processor info
# Intel i3, i5, i7 processors (EMT64T capable)
   if expr "$processor" : ".*Intel(R).*Core(TM) i[357] CPU.*" > /dev/null ; then
       cpu="core2"
# EM64T era Intel Xeon
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*51[1-6][08]" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*54[0-9][025]" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*33[2567]0" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*X32[123]0" > /dev/null ; then
       cpu="core2"
# Various Intel Duo processors (EMT64T capable)
   elif expr "$processor" : ".*Intel(R).*Core(TM)2.*CPU" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : "*.Pentium(R) 5 CPU" > /dev/null ; then
       cpu="nocona"
# EM64T compatible Intel Celeron
   elif expr "$processor" : ".*Celeron(R) D CPU" > /dev/null ; then
       cpu="nocona"
       enable small
# Intel Core2 Duo
   elif expr "$processor" : ".*Genuine.*Intel.*CPU.*2160" > /dev/null ; then
       cpu="core2"
# Intel Atom
   elif expr "$processor" : ".*Intel(R) Atom(TM)" > /dev/null ; then
       cpu="nocona"
       enable small
# Reportedly Intel Duo, but we assume 32 bit P3 due to generic name
   elif expr "$processor" : ".*Genuine.*Intel.*CPU" > /dev/null ; then
       cpu="pentium3"
# Pentium-M derivative in AppleTV, assume 32 bit P3 due to generic name
   elif expr "$processor" : ".*Genuine.*Intel.*processor" > /dev/null ; then
       cpu="pentium3"
# P4
   elif expr "$processor" : ".*Xeon(TM) CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*XEON(TM) CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*XEON(TM) MP CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : "pentium4" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*Pentium(R) [4D]" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*Celeron(R) CPU" > /dev/null ; then
       cpu="pentium4"
       enable small
# P6, which includes Intel Core
   elif expr "$processor" : ".*Intel P6 Family" > /dev/null ; then
       cpu="pentium4"
# P3
   elif expr "$processor" : "pentium3" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Pentium.* III" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Coppermine" > /dev/null ; then
       cpu="pentium3"
       enable small
   elif expr "$processor" : ".*Celeron(TM) CPU" > /dev/null ; then
       cpu="pentium3"
       enable small
   elif expr "$processor" : ".*Pentium(R) M" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Celeron(R) M processor" > /dev/null ; then
       cpu="pentium3"
       enable small
# P2
   elif expr "$processor" : "pentium2" > /dev/null ; then
       cpu="pentium2"
   elif expr "$processor" : ".*Mendocino" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Klamath" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Deschutes" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Pentium II" > /dev/null ; then
       cpu="pentium2"
       enable small
# AMD Turion
   elif expr "$processor" : ".*AMD Turion(tm) 64" > /dev/null ; then
       cpu="k8"
# AMD Geode NX
   elif expr "$processor" : ".*AMD Geode(tm) NX" > /dev/null ; then
       cpu="athlon"
       enable small
# Athlon 64
   elif expr "$processor" : ".*AMD Athlon(tm) II" > /dev/null ; then
       cpu="k8"
   elif expr "$processor" : ".*AMD Athlon(tm) 64" > /dev/null ; then
       cpu="k8"
   elif expr "$processor" : ".*AMD Athlon(tm) Dual Core" > /dev/null ; then
       cpu="k8"
   elif expr "$processor" : ".*Athlon LE-16" > /dev/null ; then
       cpu="k8"
# AMD Phenom
   elif expr "$processor" : ".*AMD Phenom(tm)" > /dev/null ; then
       cpu="barcelona"
# AMD Opteron
   elif expr "$processor" : ".*AMD Opteron(tm)" >/dev/null ; then
       cpu="k8"
# Athlon MP
   elif expr "$processor" : ".*AMD Athlon(tm) MP.*" > /dev/null ; then
       cpu="athlon-mp"
# Athlon XP
   elif expr "$processor" : "athlon-xp" > /dev/null ; then
       cpu="athlon-xp"
   elif expr "$processor" : ".*AMD Athlon(tm) XP" > /dev/null ; then
       cpu="athlon-xp"
   elif expr "$processor" : ".*AMD Sempron(tm)" > /dev/null ; then
       cpu="athlon-xp"
# Athlon
   elif expr "$processor" : "athlon" > /dev/null ; then
       cpu="athlon"
   elif expr "$processor" : ".*AMD Athlon(..)" > /dev/null ; then
       cpu="athlon"
   elif expr "$processor" : ".*AMD Duron(..)" > /dev/null ; then
       cpu="athlon"
       enable small
# K6
   elif expr "$processor" : ".*AMD-K6(tm) 3D" > /dev/null ; then
       cpu="k6"
       enable small
# Transmeta Crusoe
   elif expr "$processor" : ".*Crusoe(m) Processor TM5600" > /dev/null ; then
       cpu="pentium2"
# c3-2
   elif expr "$processor" : ".*VIA Esther" > /dev/null ; then
       cpu="c3-2"
       enable small
   elif expr "$processor" : ".*VIA Nehemiah" > /dev/null ; then
       cpu="c3-2"
       enable small
# c3
   elif expr "$processor" : ".*VIA.*Ezra" > /dev/null ; then
       cpu="c3"
       enable small
   elif expr "$processor" : ".*VIA Samuel" > /dev/null ; then
       cpu="c3"
       enable small
# if no known processor info, tune base on uname -m info
   else
       enable proc_error_msg
   fi
fi

if enabled proc_error_msg; then
    UNAME_M_INFO=` uname -m 2> /dev/null`
    UNAME_P_INFO=` uname -p 2> /dev/null`
    PROC_INFO=`cat /proc/cpuinfo | grep "model name" | head -n 1 | sed s/"\t"//g 2>/dev/null`
    PROC_FLAG=`cat /proc/cpuinfo | grep "flags" | head -n 1 | sed s/"\t"//g 2>/dev/null`
    echo ""
    echo " *** WARNING *** "
    echo " Your CPU was not detected properly:"
    echo "   uname -m: $UNAME_M_INFO"
    echo "   uname -p: $UNAME_P_INFO"
    echo " $PROC_INFO"
    echo "      $PROC_FLAG"
    echo ""
    echo " If you are using a recent checkout from "
    echo "   https://github.com/MythTV/mythtv "
    echo " please e-mail the above to mythtv-dev@mythtv.org"
    echo " With the subject \"configure did not detect my cpu\""
    echo ""
fi

if test $target_os = "darwin"; then
     # Apple GCC doesn't support march=core2 yet:
    if test $cpu = "core2"; then
        cpu="nocona"
    fi
    # Core Duo might be identified as march=pentium3, which errors:
    # ...MachineExceptions.h:... error: '__m128i' does not name a type
    # ...MachineExceptions.h:... error: '__m128i' does not name a type
    if test $cpu = "pentium3"; then
        cpu=prescott
    fi
fi

# Add processor-specific flags
if enabled aarch64; then

    case $cpu in
        armv*)
            cpuflags="-march=$cpu"
        ;;
        *)
            cpuflags="-mcpu=$cpu"
        ;;
    esac

elif enabled alpha; then

    cpuflags="-mcpu=$cpu"

elif enabled arm; then

    check_arm_arch() {
        check_cpp_condition stddef.h \
            "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
            $cpuflags
    }

    probe_arm_arch() {
        if   check_arm_arch 4;        then echo armv4
        elif check_arm_arch 4T;       then echo armv4t
        elif check_arm_arch 5;        then echo armv5
        elif check_arm_arch 5E;       then echo armv5e
        elif check_arm_arch 5T;       then echo armv5t
        elif check_arm_arch 5TE;      then echo armv5te
        elif check_arm_arch 5TEJ;     then echo armv5te
        elif check_arm_arch 6;        then echo armv6
        elif check_arm_arch 6J;       then echo armv6j
        elif check_arm_arch 6K;       then echo armv6k
        elif check_arm_arch 6Z;       then echo armv6z
        elif check_arm_arch 6ZK;      then echo armv6zk
        elif check_arm_arch 6T2;      then echo armv6t2
        elif check_arm_arch 7;        then echo armv7
        elif check_arm_arch 7A  7_A;  then echo armv7-a
        elif check_arm_arch 7S;       then echo armv7-a
        elif check_arm_arch 7R  7_R;  then echo armv7-r
        elif check_arm_arch 7M  7_M;  then echo armv7-m
        elif check_arm_arch 7EM 7E_M; then echo armv7-m
        elif check_arm_arch 8A  8_A;  then echo armv8-a
        fi
    }

    [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

    case $cpu in
        armv*)
            cpuflags="-march=$cpu"
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
        ;;
        *)
            cpuflags="-mcpu=$cpu"
            case $cpu in
                cortex-a*)                               subarch=armv7a  ;;
                cortex-r*)                               subarch=armv7r  ;;
                cortex-m*)                 enable thumb; subarch=armv7m  ;;
                arm11*)                                  subarch=armv6   ;;
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
                *)                             subarch=$(probe_arm_arch) ;;
            esac
        ;;
    esac

    case "$subarch" in
        armv5t*)    enable fast_clz                ;;
        armv[6-8]*)
            enable fast_clz
            disabled fast_unaligned || enable fast_unaligned
            ;;
    esac

elif enabled avr32; then

    case $cpu in
        ap7[02]0[0-2])
            subarch="avr32_ap"
            cpuflags="-mpart=$cpu"
        ;;
        ap)
            subarch="avr32_ap"
            cpuflags="-march=$cpu"
        ;;
        uc3[ab]*)
            subarch="avr32_uc"
            cpuflags="-mcpu=$cpu"
        ;;
        uc)
            subarch="avr32_uc"
            cpuflags="-march=$cpu"
        ;;
    esac

elif enabled bfin; then

    cpuflags="-mcpu=$cpu"

elif enabled mips; then

    cpuflags="-march=$cpu"

    if [ "$cpu" != "generic" ]; then
        disable mips32r2
        disable mips32r5
        disable mips64r2
        disable mips32r6
        disable mips64r6
        disable loongson2
        disable loongson3

        case $cpu in
            24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
                enable mips32r2
                disable msa
            ;;
            p5600|i6400|p6600)
                disable mipsdsp
                disable mipsdspr2
            ;;
            loongson*)
                enable loongson2
                enable loongson3
                enable local_aligned_8 local_aligned_16 local_aligned_32
                enable simd_align_16
                enable fast_64bit
                enable fast_clz
                enable fast_cmov
                enable fast_unaligned
                disable aligned_stack
                disable mipsfpu
                disable mipsdsp
                disable mipsdspr2
                case $cpu in
                    loongson3*)
                        cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
                    ;;
                    loongson2e)
                        cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
                    ;;
                    loongson2f)
                        cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
                    ;;
                esac
            ;;
            *)
                # Unknown CPU. Disable everything.
                warn "unknown CPU. Disabling all MIPS optimizations."
                disable mipsfpu
                disable mipsdsp
                disable mipsdspr2
                disable msa
                disable mmi
            ;;
        esac

        case $cpu in
            24kc)
                disable mipsfpu
                disable mipsdsp
                disable mipsdspr2
            ;;
            24kf*)
                disable mipsdsp
                disable mipsdspr2
            ;;
            24kec|34kc|1004kc)
                disable mipsfpu
                disable mipsdspr2
            ;;
            24kef*|34kf*|1004kf*)
                disable mipsdspr2
            ;;
            74kc)
                disable mipsfpu
            ;;
            p5600)
                enable mips32r5
                check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
            ;;
            i6400)
                enable mips64r6
                check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
            ;;
            p6600)
                enable mips64r6
                check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
            ;;
        esac
    else
        # We do not disable anything. Is up to the user to disable the unwanted features.
        warn 'generic cpu selected'
    fi

elif enabled ppc; then

    disable ldbrx

    case $(tolower $cpu) in
        601|ppc601|powerpc601)
            cpuflags="-mcpu=601"
            disable altivec
        ;;
        603*|ppc603*|powerpc603*)
            cpuflags="-mcpu=603"
            disable altivec
        ;;
        604*|ppc604*|powerpc604*)
            cpuflags="-mcpu=604"
            disable altivec
        ;;
        g3|75*|ppc75*|powerpc75*)
            cpuflags="-mcpu=750"
            disable altivec
        ;;
        g4|745*|ppc745*|powerpc745*)
            cpuflags="-mcpu=7450"
            disable vsx
        ;;
        74*|ppc74*|powerpc74*)
            cpuflags="-mcpu=7400"
            disable vsx
        ;;
        g5|970|ppc970|powerpc970)
            cpuflags="-mcpu=970"
            disable vsx
        ;;
        power[3-6]*)
            cpuflags="-mcpu=$cpu"
            disable vsx
        ;;
        power[7-8]*)
            cpuflags="-mcpu=$cpu"
        ;;
        cell)
            cpuflags="-mcpu=cell"
            enable ldbrx
            disable vsx
        ;;
        e500mc)
            cpuflags="-mcpu=e500mc"
            disable altivec
        ;;
        e500v2)
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
            disable altivec
            disable dcbzl
        ;;
        e500)
            cpuflags="-mcpu=8540 -mhard-float"
            disable altivec
            disable dcbzl
        ;;
    esac

elif enabled sparc; then

    case $cpu in
        cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
            cpuflags="-mcpu=$cpu"
        ;;
        ultrasparc*|niagara[234])
            cpuflags="-mcpu=$cpu"
        ;;
    esac

elif enabled x86; then

    case $cpu in
        i[345]86|pentium)
            cpuflags="-march=$cpu"
            disable i686
            disable mmx
        ;;
        # targets that do NOT support nopl and conditional mov (cmov)
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
            cpuflags="-march=$cpu"
            disable i686
        ;;
        # targets that do support nopl and conditional mov (cmov)
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
        |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
        |amdfam10|barcelona|b[dt]ver*|znver*)
            cpuflags="-march=$cpu"
            enable i686
            enable fast_cmov
        ;;
        # targets that do support conditional mov but on which it's slow
        pentium4|pentium4m|prescott|nocona)
            cpuflags="-march=$cpu"
            enable i686
            disable fast_cmov
        ;;
    esac

fi


# if architecture specific flags don't work blank them
if test -n "$cpuflags"; then
    tmp_cpuflags="$cpuflags"
    check_cc $cpuflags <<EOF || cpuflags=""
int main( void ) { return 0; }
EOF
    if test -z "$cpuflags"; then
        if enabled cpu_override || enabled proc_opt || test x"$tune" != x"generic"; then
            echo "ERROR: CPU specific ./configure options failed compile test"
            echo "       Removing CPU specific compilation options. ($tmp_cpuflags)"
            echo ""
        fi
    fi
fi

if [ "$cpu" != generic ]; then
    add_cflags  $cpuflags
    add_asflags $cpuflags
    add_cxxflags $cpuflags
    test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
fi

# compiler sanity check
check_exec <<EOF
int main(void){ return 0; }
EOF
if test "$?" != 0; then
    echo "$cc is unable to create an executable file."
    echo "Check your ECFLAGS: [$ECFLAGS]"
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
        echo "Only do this if you know what cross compiling means."
    fi
    die "C compiler test failed."
fi

add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
#add_cxxflags -D__STDC_CONSTANT_MACROS
check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

# some compilers silently accept -std=c11, so we also need to check that the
# version macro is defined properly
test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
    add_cflags -std=c11 ||
    check_cflags -std=c99

# C++ compiler sanity check
check_exec_cxx <<EOF
int main(void){ return 0; }
EOF
if test "$?" != 0; then
    echo "$cxx is unable to create an executable file."
    echo "Check your ECXXFLAGS: [$ECXXFLAGS]"
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
        echo "If $cxx is a cross-compiler, use the --enable-cross-compile option."
        echo "Only do this if you know what cross compiling means."
    fi
    die "C++ compiler test failed."
fi


check_cppflags -D_FILE_OFFSET_BITS=64
check_cppflags -D_LARGEFILE_SOURCE
check_cxx -D_FILE_OFFSET_BITS=64 <<EOF && add_cxxppflags -D_FILE_OFFSET_BITS=64
#include <stdlib.h>
EOF
check_cxx -D_LARGEFILE_SOURCE <<EOF && add_cxxppflags -D_LARGEFILE_SOURCE
#include <stdlib.h>
EOF

add_host_cppflags -D_ISOC99_SOURCE
check_host_cflags -std=c99
check_host_cflags -Wall
check_host_cflags $host_cflags_speed

check_64bit(){
    arch32=$1
    arch64=$2
    expr=$3
    check_code cc "" "int test[2*($expr) - 1]" &&
        subarch=$arch64 || subarch=$arch32
}

case "$arch" in
    aarch64|alpha|ia64)
        spic=$shared
    ;;
    mips)
        check_64bit mips mips64 '_MIPS_SIM > 1'
        spic=$shared
    ;;
    parisc)
        check_64bit parisc parisc64 'sizeof(void *) > 4'
        spic=$shared
    ;;
    ppc)
        check_64bit ppc ppc64 'sizeof(void *) > 4'
        spic=$shared
    ;;
    s390)
        check_64bit s390 s390x 'sizeof(void *) > 4'
        spic=$shared
    ;;
    sparc)
        check_64bit sparc sparc64 'sizeof(void *) > 4'
        spic=$shared
    ;;
    x86)
        check_64bit x86_32 x86_64 'sizeof(void *) > 4'
        # Treat x32 as x64 for now. Note it also needs spic=$shared
        test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
            subarch=x86_64
        if test "$subarch" = "x86_64"; then
            spic=$shared
        fi
    ;;
    ppc)
        check_cc <<EOF && subarch="ppc64"
        int test[(int)sizeof(char*) - 7];
EOF
    ;;
esac

enable $subarch
enabled spic && enable_weak pic

enabled x86_64 && objformat=elf64 || objformat="elf32"

# OS specific
case $target_os in
    aix)
        SHFLAGS=-shared
        add_cppflags '-I\$(SRC_PATH)/compat/aix'
        enabled shared && add_ldflags -Wl,-brtl
        ;;
    android)
        disable symver
        enable section_data_rel_ro
        disable qtdbus
        SLIB_INSTALL_NAME='$(SLIBNAME)'
        SLIB_INSTALL_LINKS=
        # soname not set on purpose
        SHFLAGS=-shared
        enable pic
        ;;
    haiku)
        prefix_default="/boot/common"
        network_extralibs="-lnetwork"
        host_extralibs=
        ;;
    sunos)
        SHFLAGS='-shared -Wl,-h,$$(@F)'
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
        network_extralibs="-lsocket -lnsl"
        add_cppflags -D__EXTENSIONS__
        # When using suncc to build, the Solaris linker will mark
        # an executable with each instruction set encountered by
        # the Solaris assembler.  As our libraries contain their own
        # guards for processor-specific code, instead suppress
        # generation of the HWCAPS ELF section on Solaris x86 only.
        enabled_all suncc x86 &&
            echo "hwcap_1 = OVERRIDE;" > mapfile &&
            add_ldflags -Wl,-M,mapfile
        add_cxxppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
        nm_default='nm -P -g'
        version_script='-M'
        VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
        ;;
    netbsd)
        disable symver
        oss_indev_extralibs="-lossaudio"
        oss_outdev_extralibs="-lossaudio"
        enabled gcc || check_ldflags -Wl,-zmuldefs
        add_cppflags -D_XOPEN_SOURCE=600
        add_cxxppflags -D_XOPEN_SOURCE=600
        ;;
    openbsd|bitrig)
        disable symver
        SHFLAGS='-shared'
        SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
        SLIB_INSTALL_LINKS=
        oss_indev_extralibs="-lossaudio"
        oss_outdev_extralibs="-lossaudio"
        ;;
    dragonfly)
        disable symver
        ;;
    freebsd)
        append CCONFIG "freebsd"
        # Workaround compile errors from missing u_int/uint def
        CPPFLAGS=`echo $CPPFLAGS | sed 's/-D_POSIX_C_SOURCE=200112//'`
        disable ivtv
        enable backend
        enable pic
        enable drm
        ;;
    bsd/os)
        add_extralibs -lpoll -lgnugetopt
        strip="strip -d"
        ;;
    darwin)
        enable  appleremote
        enable  backend
        enable  darwin
        disable dvb
        disable v4l1
        disable v4l2
        disable v4l2prime
        disable x11
        # Workaround compile errors from missing u_int/uint def
        CFLAGS=`echo $CFLAGS | sed 's/-D_POSIX_C_SOURCE=200112//'`
        CPPFLAGS=`echo $CPPFLAGS | sed 's/-D_POSIX_C_SOURCE=200112//'`
        # Workaround compile errors from missing ru_maxrss
        add_cppflags -D_DARWIN_C_SOURCE

        ###### Standard ffmpeg configure stuff follows:
        enabled ppc && add_asflags -force_cpusubtype_ALL
        install_name_dir_default='$(SHLIBDIR)'

        #Need to add @rpath in front of install name so test unit can use non-installed lib
        SHFLAGS='-headerpad_max_install_names -dynamiclib -Wl,-single_module -Wl,-install_name,@rpath/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
        strip="${strip} -x"
        add_ldflags -Wl,-dynamic,-search_paths_first
        SLIBSUF=".dylib"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
        objformat="macho"
        enabled x86_64 && objformat="macho64" || objformat="macho32"
        enabled_any pic shared x86_64 ||
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
        check_header dispatch/dispatch.h &&
            add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
        version_script='-exported_symbols_list'
        VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
        ;;
    msys*)
        die "Native MSYS builds are discouraged, please use the MINGW environment."
        ;;
    mingw32*|mingw64*)
        enable  backend
        disable bindings_perl
        disable bindings_python
        disable bindings_php
        disable dv1394
        disable dvb
        disable ceton
        enable  memalign_hack
        disable mythtranscode
        disable network
        enable opengl
        if enabled wince; then
            disable protocols
        fi
        disable symver
        disable v4l1
        disable v4l2
        disable v4l2prime
        enable  windows
        disable x11
        disable qtdbus
        disable libuuid
        disable ffserver
        ###### Standard ffmpeg configure stuff follows:
        if test $target_os = "mingw32ce"; then
            disable network
        else
            target_os=mingw32
        fi
        LIBTARGET=i386
        if enabled x86_64; then
            LIBTARGET="i386:x86-64"
        elif enabled arm; then
            LIBTARGET=arm-wince
        fi
        enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
        enabled x86_32 && check_ldflags -Wl,--large-address-aware
        shlibdir_default="$bindir_default"
        SLIBPREF="libmyth"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
        dlltool="${cross_prefix}dlltool"
        if check_cmd lib.exe -list ; then
            SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
        else
            SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
        fi
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
            install -d "$(LIBDIR)"; \
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
        ranlib=:
        enable dos_paths
        check_ldflags -Wl,--nxcompat,--dynamicbase
        # Lets work around some stupidity in binutils.
        # ld will strip relocations from executables even though we need them
        # for dynamicbase (ASLR).  Using -pie does retain the reloc section
        # however ld then forgets what the entry point should be (oops) so we
        # have to manually (re)set it.
        if enabled x86_32; then
            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
        elif enabled x86_64; then
            disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
            check_ldflags -Wl,--high-entropy-va # binutils 2.25
            # Set image base >4GB for extra entropy with HEASLR
            add_ldexeflags -Wl,--image-base,0x140000000
            append SHFLAGS -Wl,--image-base,0x180000000
        fi
        add_extralibs -lws2_32
        # Workaround compile errors due -std=c++98 incompatible system headers
        ECXXFLAGS=`echo $ECXXFLAGS | sed 's/-std=c++98//'`
        ;;
    win32|win64)
        disable symver
        if enabled shared; then
            # Link to the import library instead of the normal static library
            # for shared libs.
            LD_LIB='%.lib'
            # Cannot build both shared and static libs with MSVC or icl.
            disable static
        fi
        enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
        shlibdir_default="$bindir_default"
        SLIBPREF="libmyth"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
        SLIB_INSTALL_LINKS=
        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
        SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
        SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
        enabled x86_64 && objformat="win64" || objformat="win32"
        ranlib=:
        enable dos_paths
        ;;
    cygwin*)
        enable cygwin
        enable windows
        target_os=cygwin
        shlibdir_default="$bindir_default"
        SLIBPREF="cygmyth"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
        SLIB_INSTALL_LINKS=
        SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
        enabled x86_64 && objformat="win64" || objformat="win32"
        enable dos_paths
        enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
        ;;
    *-dos|freedos|opendos)
        disable ffserver
        disable $INDEV_LIST $OUTDEV_LIST
        network_extralibs="-lsocket"
        objformat="coff"
        enable dos_paths
        add_cppflags -U__STRICT_ANSI__
        ;;
    linux)
        enable section_data_rel_ro
        enabled_any arm aarch64 && enable_weak linux_perf
        append CCONFIG "linux"
        enable backend
        ! disabled joystick_menu && enable joystick_menu
        enable libudev
        enable libuuid
        enable pic
        enable drm
	if [ x`uname -m` = x"armv7l" ]; then
	    disable vaapi
	fi
        ;;
    irix*)
        target_os=irix
        ranlib="echo ignoring ranlib"
        ;;
    os/2*)
        strip="lxlite -CS"
        striptype=""
        objformat="aout"
        add_cppflags -D_GNU_SOURCE
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
        LIBSUF="_s.a"
        SLIBPREF="myth"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
            echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
            echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
            echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
            emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
            emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
        SLIB_INSTALL_LINKS=
        SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
        enable dos_paths
        enable_weak os2threads
        ;;
    gnu/kfreebsd)
        add_cppflags -D_BSD_SOURCE
        ;;
    gnu)
        ;;
    qnx)
        add_cppflags -D_QNX_SOURCE
        network_extralibs="-lsocket"
        ;;
    symbian)
        SLIBSUF=".dll"
        enable dos_paths
        add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
        add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
        add_ldflags -Wl,--target1-abs,--no-undefined \
                    -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
                    -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
        add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
                      -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
                      -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
        ;;
    osf1)
        add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
        ;;
    minix)
        ;;
    none)
        ;;
    *)
        die "Unknown OS '$target_os'."
        ;;
esac

# test if creating links works
link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
mkdir "$link_dest"
$ln_s "$link_dest" "$link_name"
touch "$link_dest/test_file"
if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
    # create link to source path
    [ -e src ] && rm src
    $ln_s "$source_path" src
    source_link=src
else
    # creating directory links doesn't work
    # fall back to using the full source path
    source_link="$source_path"
fi
# cleanup
rm -r "$link_dest"
rm -r "$link_name"

# determine libc flavour

probe_libc(){
    pfx=$1
    pfx_no_=${pfx%_}
    # uclibc defines __GLIBC__, so it needs to be checked before glibc.
    if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
        eval ${pfx}libc_type=uclibc
        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
    elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
        eval ${pfx}libc_type=glibc
        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
    # MinGW headers can be installed on Cygwin, so check for newlib first.
    elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
        eval ${pfx}libc_type=newlib
        add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
    # MinGW64 is backwards compatible with MinGW32, so check for it first.
    elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
        eval ${pfx}libc_type=mingw64
        if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
            add_compat msvcrt/snprintf.o
            add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
        fi
        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
        eval test \$${pfx_no_}cc_type = "gcc" &&
            add_${pfx}cppflags -D__printf__=__gnu_printf__
    elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
         check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
        eval ${pfx}libc_type=mingw32
        check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
            (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
            die "ERROR: MinGW32 runtime version must be >= 3.15."
        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
        check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
            add_${pfx}cppflags -D_WIN32_WINNT=0x0502
        check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
            add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
        eval test \$${pfx_no_}cc_type = "gcc" &&
            add_${pfx}cppflags -D__printf__=__gnu_printf__
    elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
        eval ${pfx}libc_type=msvcrt
        if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
            if [ "$pfx" = host_ ]; then
                add_host_cppflags -Dsnprintf=_snprintf
            else
                add_compat strtod.o strtod=avpriv_strtod
                add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
                                             _snprintf=avpriv_snprintf  \
                                             vsnprintf=avpriv_vsnprintf
            fi
        fi
        add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
        # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
        # 0x601 by default unless something else is set by the user.
        # This can easily lead to us detecting functions only present
        # in such new versions and producing binaries requiring windows 7.0.
        # Therefore explicitly set the default to XP unless the user has
        # set something else on the command line.
        # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
        # family. For these cases, configure is free to use any functions
        # found in the SDK headers by default. (Alternatively, we could force
        # _WIN32_WINNT to 0x0602 in that case.)
        check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
            { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
#ifdef WINAPI_FAMILY
#include <winapifamily.h>
#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#error not desktop
#endif
#endif
EOF
        if [ "$pfx" = "" ]; then
            check_func strtoll || add_cflags -Dstrtoll=_strtoi64
            check_func strtoull || add_cflags -Dstrtoull=_strtoui64
        fi
    elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
        eval ${pfx}libc_type=klibc
    elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
        eval ${pfx}libc_type=bionic
    elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
        eval ${pfx}libc_type=solaris
        add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
    fi
    check_${pfx}cc <<EOF
#include <time.h>
void *v = localtime_r;
EOF
test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
#include <time.h>
void *v = localtime_r;
EOF

}

probe_libc
test -n "$libc_type" && enable libc_$libc_type
probe_libc host_
test -n "$host_libc_type" && enable host_libc_$host_libc_type

# hacks for compiler/libc/os combinations

case $libc_type in
    bionic)
        if test $target_os != android ; then
            add_compat strtod.o strtod=avpriv_strtod
        fi
        ;;
    glibc)
        if enabled tms470; then
            CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
            add_cppflags -D__USER_LABEL_PREFIX__=
            add_cppflags -D__builtin_memset=memset
            add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
            add_cflags   -pds=48    # incompatible redefinition of macro
        elif enabled ccc; then
            add_ldflags -Wl,-z,now  # calls to libots crash without this
        fi
        ;;
esac

check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
    add_cppflags '-I\$(SRC_PATH)/compat/float'

esc(){
    echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
}

echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $MYTHTV_CONFIGURATION)" > config.fate

check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

set_default libdir
: ${shlibdir_default:="$libdir"}
: ${pkgconfigdir_default:="$libdir/pkgconfig"}

set_default $PATHS_LIST
set_default nm

set_default $MYTHTV_PATHS_LIST
if test $target_os = android ; then
    append CONFIG_INCLUDEPATH $sysinclude "${sysroot}${prefix}"
fi

append CCONFIG "$compile_type"
if test x$compile_type = x"profile" ; then
    add_cflags   -DNDEBUG
    add_cxxflags -DNDEBUG
    enable debug
    disable stripping
    enable profiletype
elif test x$compile_type = x"debug"; then
    enable debug
    disable optimizations stripping
    enable debugtype
fi

enabled silent_cc && append CCONFIG "silent"

disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
# backward compatibility layer for incompatible_libav/fork_abi
enabled incompatible_fork_abi  && enable incompatible_libav_abi
enabled incompatible_libav_abi && enable incompatible_fork_abi

disabled static && LIBNAME=""

disabled optimizations || check_cxxflags -fomit-frame-pointer

enable_weak_pic() {
    disabled pic && return
    enable pic
    add_cppflags -DPIC
    add_cxxppflags -DPIC
    case "$target_os" in
    mingw*|cygwin*)
        ;;
    *)
        add_cflags -fPIC
        add_cxxflags -fPIC
        ;;
    esac
    add_asflags  -fPIC
}

enabled pic && enable_weak_pic

version2num(){
    # accepts version as in 1.10.4 and turns it into 0x010A04 which can be compared as a number
    echo $1 | awk -F. '{ print ( ( $1 * 256 ) + $2 ) * 256 + $3; };'
}

# Minimum supported Qt version
QT_MIN_VERSION_STR="5.7"
QT_MIN_VERSION=$(version2num $QT_MIN_VERSION_STR)
QT_MIN_VERSION_HEX=$(printf "0x%06x" $QT_MIN_VERSION)

# qmake-qt5 /usr/lib64/qt5/bin/qmake /usr/lib/x86_64-linux-gnu/qt5/bin/qmake
if [ x"$qmake" = "xqmake" ]; then
    CHECK_QMAKE=`which qmake-qt5 2>/dev/null`" /usr/lib64/qt5/bin/qmake /usr/lib/x86_64-linux-gnu/qt5/bin/qmake /usr/lib/i386-linux-gnu/qt5/bin/qmake /usr/lib/arm-linux-gnueabihf/qt5/bin/qmake /usr/local/lib/qt5/bin/qmake `which $qmake 2>/dev/null`"
else
    CHECK_QMAKE=`which $qmake 2>/dev/null`" "`which qmake-qt5 2>/dev/null`" /usr/lib64/qt5/bin/qmake /usr/lib/x86_64-linux-gnu/qt5/bin/qmake /usr/lib/i386-linux-gnu/qt5/bin/qmake /usr/lib/arm-linux-gnueabihf/qt5/bin/qmake /usr/local/lib/qt5/bin/qmake"
fi
# try to find a qt5 qmake to use
found_qmake=''
for i in $CHECK_QMAKE; do
    if test -e $i ; then
        qt_version_str=`$i -query QT_VERSION`
        qt_version=$(version2num $qt_version_str)
        qt_version_hex=$(printf "0x%06x" $qt_version)
        if [ $qt_version -ge $QT_MIN_VERSION ]; then
            found_qmake=$i
            check_cxxflags -DQT_DISABLE_DEPRECATED_BEFORE=$QT_MIN_VERSION_HEX
#            check_cxxflags -DQT_DISABLE_DEPRECATED_BEFORE=$qt_version_hex
            break;
        else
            echo "found qmake at $i but version failed"
            echo "got version: $qt_version_str"
        fi
    fi
done
if [ x"$found_qmake" = "x" ]; then
    die "qmake for Qt $QT_MIN_VERSION_STR or newer not found.  Please specify the correct qmake with --qmake="
else
    qmake=$found_qmake
fi

if test x"$qmakespecs" != x; then
    qmakeconf="$qmake -spec $qmakespecs"
else
    qmakeconf="$qmake"
fi

check_cc <<EOF || die "Symbol mangling check failed."
int ff_extern;
EOF
sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
extern_prefix=${sym%%ff_extern*}

check_inline_asm inline_asm '"" ::'

_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
    check_cxx <<EOF && _restrict=$restrict_keyword && break
void foo(char * $restrict_keyword p);
EOF
done

check_cc <<EOF && enable pragma_deprecated
void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
EOF

check_cc <<EOF && enable attribute_packed
struct { int x; } __attribute__((packed)) x;
EOF

check_cc <<EOF && enable attribute_may_alias
union { int x; } __attribute__((may_alias)) x;
EOF

check_cc <<EOF || die "endian test failed"
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
EOF
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

check_cc <<EOF && enable const_nan
#include <math.h>
void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }
EOF

if ! enabled ppc64 || enabled bigendian; then
    disable vsx
fi

check_gas() {
    log "check_gas using '$as' as AS"
    # :vararg is used on aarch64, arm and ppc altivec
    check_as <<EOF || return 1
.macro m n, y:vararg=0
\n: .int \y
.endm
m x
EOF
    # .altmacro is only used in arm asm
    ! enabled arm || check_as <<EOF || return 1
.altmacro
EOF
    enable gnu_as
    return 0
}

if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
    nogas=:
    enabled_any arm aarch64 && nogas=die
    enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
    as_noop=-v

    case $as_type in
        arm*) gaspp_as_type=armasm; as_noop=-h ;;
        gcc)  gaspp_as_type=gas ;;
        *)    gaspp_as_type=$as_type ;;
    esac

    [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

    test "${as#*gas-preprocessor.pl}" != "$as" ||
    check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
        gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

    if ! check_gas ; then
        as=${gas:=$as}
        check_gas || \
            $nogas "GNU assembler not found, install/update gas-preprocessor"
    fi

    check_as <<EOF && enable as_func
.func test
.endfunc
EOF
fi

check_inline_asm inline_asm_labels '"1:\n"'

check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

if enabled aarch64; then
    enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
    # internal assembler in clang 3.3 does not support this instruction
    enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
    enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

    map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

elif enabled alpha; then

    check_cflags -mieee

elif enabled arm; then

    enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

    check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
float func(float a, float b){ return a+b; }
EOF

    enabled thumb && check_cflags -mthumb || check_cflags -marm

    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
        enable vfp_args
    elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
        enable vfp_args
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
        case "${cross_prefix:-$cc}" in
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
            *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
__asm__ (".eabi_attribute 28, 1");
int main(void) { return 0; }
EOF
        esac
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
    fi

    enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
    enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
    enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
    enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
    enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
    enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
    enabled setend  && check_insn setend  'setend be'

    [ $target_os = linux ] || [ $target_os = android ] ||
        map 'enabled_any ${v}_external ${v}_inline || disable $v' \
            $ARCH_EXT_LIST_ARM

    check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

    check_as <<EOF && enable as_dn_directive
ra .dn d0.i16
.unreq ra
EOF
    check_as <<EOF && enable as_fpu_directive
.fpu neon
EOF

    # llvm's integrated assembler supports .object_arch from llvm 3.5
    [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
        check_as <<EOF && enable as_object_arch
.object_arch armv4
EOF

    [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

elif enabled mips; then

    enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
    enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
    enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

    # Enable minimum ISA based on selected options
    if enabled mips64; then
        enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
        enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
        disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
    else
        enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
        enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
        enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
        disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
    fi

    enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
    enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
    enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
    enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
    enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

    if enabled bigendian && enabled msa; then
        disable msa
    fi

elif enabled parisc; then

    if enabled gcc; then
        case $($cc -dumpversion) in
            4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
        esac
    fi

elif enabled ppc; then

    enable local_aligned_8 local_aligned_16 local_aligned_32

    check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
    check_inline_asm ibm_asm   '"add 0, 0, 0"'
    check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
    check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

    # AltiVec flags: The FSF version of GCC differs from the Apple version
    if enabled altivec; then
        check_cflags -maltivec -mabi=altivec &&
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
        check_cflags -faltivec
        check_cxxflags -maltivec -mabi=altivec &&
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
        check_cxxflags -faltivec

        # check if our compiler supports Motorola AltiVec C API
        check_cc <<EOF || disable altivec
$inc_altivec_h
int main(void) {
    vector signed int v1 = (vector signed int) { 0 };
    vector signed int v2 = (vector signed int) { 1 };
    v1 = vec_add(v1, v2);
    return 0;
}
EOF

        enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
    fi

    if enabled vsx; then
        check_cflags -mvsx &&
        check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
    fi

    if enabled power8; then
        check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
    fi

elif enabled x86; then

    check_builtin rdtsc    intrin.h   "__rdtsc()"
    check_builtin mm_empty mmintrin.h "_mm_empty()"

    enable local_aligned_8 local_aligned_16 local_aligned_32

    # check whether EBP is available on x86
    # As 'i' is stored on the stack, this program will crash
    # if the base pointer is used to access it because the
    # base pointer is cleared in the inline assembly code.
    check_exec_crash <<EOF && enable ebp_available
volatile int i=0;
__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
return i;
EOF

    # check whether EBX is available on x86
    check_inline_asm ebx_available '""::"b"(0)' &&
        check_inline_asm ebx_available '"":::"%ebx"'

    # check whether xmm clobbers are supported
    check_inline_asm xmm_clobbers '"":::"%xmm0"'

    check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
        check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

    # check whether binutils is new enough to compile SSSE3/MMXEXT
    enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
    enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

    probe_x86asm(){
        x86asmexe_probe=$1
        if check_cmd $x86asmexe_probe -v; then
            x86asmexe=$x86asmexe_probe
            x86asm_type=nasm
            x86asm_debug="-g -F dwarf"
        elif check_cmd $x86asmexe_probe --version; then
            x86asmexe=$x86asmexe_probe
            x86asm_type=yasm
            x86asm_debug="-g dwarf2"
        fi
        check_x86asm "movbe ecx, [5]" && enable x86asm
    }

    if ! disabled_any asm mmx x86asm; then
        disable x86asm
        for program in $x86asmexe nasm yasm; do
            probe_x86asm $program && break
        done
        disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
        test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
        test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
        X86ASMFLAGS="-f $objformat"
        enabled pic               && append X86ASMFLAGS "-DPIC"
        test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
        case "$objformat" in
            elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
        esac

        check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
        check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
        check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
        check_x86asm "CPU amdnop" || disable cpunop
    fi

    case "$cpu" in
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
            disable fast_clz
        ;;
    esac

fi

check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

check_ldflags -Wl,--as-needed
check_ldflags -Wl,-z,noexecstack

if ! disabled network; then
    check_func getaddrinfo $network_extralibs
    check_func inet_aton $network_extralibs

    check_type netdb.h "struct addrinfo"
    check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
    check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
    check_type poll.h "struct pollfd"
    check_type netinet/sctp.h "struct sctp_event_subscribe"
    check_struct "sys/socket.h" "struct msghdr" msg_flags
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
    check_type netinet/in.h "struct sockaddr_in6"
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
    check_type "sys/types.h sys/socket.h" socklen_t

    # Prefer arpa/inet.h over winsock2
    if check_header arpa/inet.h ; then
        check_func closesocket
    elif check_header winsock2.h ; then
        check_func_headers winsock2.h closesocket -lws2 &&
            network_extralibs="-lws2" ||
        { check_func_headers winsock2.h closesocket -lws2_32 &&
            network_extralibs="-lws2_32"; } || disable winsock2_h network
        check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

        check_type ws2tcpip.h socklen_t
        check_type ws2tcpip.h "struct addrinfo"
        check_type ws2tcpip.h "struct group_source_req"
        check_type ws2tcpip.h "struct ip_mreq_source"
        check_type ws2tcpip.h "struct ipv6_mreq"
        check_type winsock2.h "struct pollfd"
        check_struct winsock2.h "struct sockaddr" sa_len
        check_type ws2tcpip.h "struct sockaddr_in6"
        check_type ws2tcpip.h "struct sockaddr_storage"
    else
        disable network
    fi
fi

# "CPU_CLIP" test for SRC / libsamplerate
# test positive wrap
check_exec -lm << EOF && enable cpu_clips_positive
    #define _ISOC9X_SOURCE  1
    #define _ISOC99_SOURCE  1
    #define __USE_ISOC99    1
    #define __USE_ISOC9X    1
    #include <math.h>
    int main (void)
    {	double	fval ;
        int k, ival ;

        fval = 1.0 * 0x7FFFFFFF ;
        for (k = 0 ; k < 100 ; k++)
        {
            ival = (lrint (fval)) >> 24 ;
            if (ival != 127)
                return 1 ;

            fval *= 1.2499999 ;
        } ;

        return 0 ;
    }
EOF

# test negative wrap
check_exec -lm << EOF && enable cpu_clips_negative
    #define	_ISOC9X_SOURCE	1
    #define _ISOC99_SOURCE  1
    #define __USE_ISOC99    1
    #define __USE_ISOC9X    1
    #include <math.h>
    int main (void)
    {
        double	fval ;
        int k, ival ;

        fval = -8.0 * 0x10000000 ;
        for (k = 0 ; k < 100 ; k++)
        {
            ival = (lrint (fval)) >> 24 ;
            if (ival != -128)
                return 1 ;

            fval *= 1.2499999 ;
        } ;

        return 0 ;
    }
EOF
require_pkg_config samplerate samplerate samplerate.h src_get_version -lm

# required to compile inline sse with some compilers
enabled x86 && enabled sse2 && add_cxxflags "-msse"

# test for distcc
enabled distcc && check_cmd distcc --version || disable distcc
if enabled distcc; then
    XYZ=`which $cc`
    if test x"$XYZ" != x"" -a x"`ls -l $XYZ | grep distcc`" != x""; then
        distcc="symlink"
        distcc_txt=" $cc"
    fi
fi

# test for ccache
enabled ccache && check_cmd ccache -V || disable ccache
if enabled ccache; then
    XYZ=`which $cc`
    if test x"$XYZ" != x"" -a x"`ls -l $XYZ | grep ccache`" != x""; then
        ccache="symlink"
        ccache_txt=" $cc"
    fi
fi

# ccache should be used before distcc for better cache coherency
if enabled distcc; then
    if disabled ccache; then
        cc="distcc $cc"
        cxx="distcc $cxx"
    elif enabled ccache; then
        cc="ccache distcc $cc"
        cxx="ccache distcc $cxx"
    else
        disable distcc
        distcc_txt="t using distcc explicitly, since ccache symlink is present"
    fi
else
    if enabled ccache; then
        cc="ccache $cc"
        cxx="ccache $cxx"
    fi
fi

check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
check_builtin MemoryBarrier windows.h "MemoryBarrier()"
check_builtin sarestart signal.h "SA_RESTART"
check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

case "$custom_allocator" in
    jemalloc)
        # jemalloc by default does not use a prefix
        require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
    ;;
    tcmalloc)
        require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
        malloc_prefix=tc_
    ;;
esac

check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
check_func  ${malloc_prefix}memalign            && enable memalign
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

check_func  access
check_func_headers stdlib.h arc4random
check_func_headers time.h clock_gettime ||
    { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }
check_func  fcntl
check_func  fork
check_func  gethrtime
check_func  getopt
check_func  getrusage
check_func  gettimeofday
check_func  isatty
check_func  mach_absolute_time
check_func  mkstemp
check_func  mmap
check_func  mprotect
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
check_func_headers time.h nanosleep ||
    { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }
check_func  sched_getaffinity
check_func  setrlimit
check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
check_func  strerror_r
check_func  sysconf
check_func  sysctl
check_func  usleep

check_func_headers conio.h kbhit
check_func_headers io.h setmode
check_func_headers lzo/lzo1x.h lzo1x_999_compress
check_func_headers stdlib.h getenv
check_func_headers sys/stat.h lstat

check_func_headers windows.h GetProcessAffinityMask
check_func_headers windows.h GetProcessTimes
check_func_headers windows.h GetSystemTimeAsFileTime
check_func_headers windows.h LoadLibrary
check_func_headers windows.h MapViewOfFile
check_func_headers windows.h PeekNamedPipe
check_func_headers windows.h SetConsoleTextAttribute
check_func_headers windows.h SetConsoleCtrlHandler
check_func_headers windows.h Sleep
check_func_headers windows.h VirtualAlloc
check_struct windows.h "CONDITION_VARIABLE" Ptr
check_func_headers glob.h glob

check_header d3d11.h
check_header direct.h
check_header dirent.h
check_header dlfcn.h
check_header dxgidebug.h
check_header dxva.h
check_header dxva2api.h -D_WIN32_WINNT=0x0600
check_header fcntl.h
check_header io.h
check_header mach/mach_time.h
check_header malloc.h
check_header net/udplite.h
check_header poll.h
check_header sys/mman.h
check_header sys/param.h
check_header sys/resource.h
check_header sys/select.h
check_header sys/time.h
check_header sys/un.h
check_header termios.h
check_header unistd.h
check_header valgrind/valgrind.h
check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
check_header windows.h
check_header asm/types.h
check_header linux/videodev.h
check_header linux/videodev2.h


# it seems there are versions of clang in some distros that try to use the
# gcc headers, which explodes for stdatomic
# so we also check that atomics actually work here
check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

#Myth check for MYTHTV_HAVE_LIST
check_header byteswap.h
check_header sys/endian.h
check_header va/va.h
check_header va/va_x11.h
check_header va/va_glx.h
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
check_func posix_fadvise
check_func_headers sys/timeb.h ftime
check_func_headers "sys/types.h sys/socket.h ifaddrs.h" getifaddrs
check_func_headers sys/time.h gettimeofday
#End MythTV check

check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
check_type "windows.h d3d11.h" "ID3D11VideoContext"
check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

if ! disabled w32threads && ! enabled pthreads; then
    check_func_headers "windows.h process.h" _beginthreadex &&
        enable w32threads || disable w32threads
    if ! enabled w32threads && enabled winrt; then
        check_func_headers "windows.h" CreateThread &&
            enable w32threads || disable w32threads
    fi
fi

# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
    if check_lib pthreads pthread.h pthread_join   -pthread &&
       check_lib pthreads pthread.h pthread_create -pthread; then
        add_cflags -pthread
        add_cxxflags -pthread
    elif check_lib pthreads pthread.h pthread_join   -pthreads &&
         check_lib pthreads pthread.h pthread_create -pthreads; then
        add_cflags -pthreads
        add_cxxflags -pthread
    elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
         check_lib pthreads pthread.h pthread_create -ldl -pthread; then
        add_cflags -ldl -pthread
    elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
         check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
        :
    elif check_lib pthreads pthread.h pthread_join   -lpthread &&
         check_lib pthreads pthread.h pthread_create -lpthread; then
        :
    elif check_func pthread_join && check_func pthread_create; then
        enable pthreads
    fi
    check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
fi


if enabled pthreads; then
  check_func pthread_cancel
fi

enabled ffmpeg_pthreads && enable pthreads

# Check for taglib for libmythmetadata
if enabled taglib; then
    taglib_minor="0"
    if test x`which taglib-config` != x"" ; then
        taglib_minor=`taglib-config --version | cut -d. -f2`
        if test x"$taglib_minor" = x"" ; then
            echo "Can't find taglib-config. Assuming 1.7 or later."
            taglib_minor="7"
        fi
        if test $target_os = android ; then
            tagprefix=`taglib-config --prefix`
        else
            tagprefix=${sysroot}`taglib-config --prefix`
        fi
        tagincludes="-I${tagprefix}/include"
        taglibs=`taglib-config --libs`
        if test $target_os = android ; then
            taglibs="$taglibs -lz -lm"
        fi
    fi

    if test $taglib_minor -lt 7 || ! check_class_headers_cpp "taglib/fileref.h stdlib.h" TagLib::FileRef $tagincludes $taglibs -lstdc++; then
        die "ERROR: cannot find taglib 1.7 or later."
    fi
fi

# Attempt to use libudev for mediamonitor
enabled libudev && check_lib udev libudev.h udev_new  || disable libudev

# libmythbluray!
if enabled libbluray_external; then
    if $(pkg-config --atleast-version="0.9.3" libbluray); then
        use_pkg_config libbluray libbluray libbluray/bluray.h bd_open
    else
        case $target_os in
            linux)
                # Some older supported linux versions don't have a
                # libbluray current enough to support MythTV.  Allow
                # only those systems to reach the bottom of the
                # following case statement.  This list should only
                # shrink over time.
                . /etc/os-release
                case $ID in
                    centos)
                        if test $VERSION_ID -gt 8; then
                            die "ERROR: can not find libbluray."
                        fi
                        ;;
                    ubuntu)
                        case $VERSION_ID in
                            17*|18*|19*|2*)
                                die "ERROR: can not find libbluray."
                                ;;
                        esac
                        ;;
                    debian)
                        if test $VERSION_ID -gt 8; then
                            die "ERROR: can not find libbluray."
                        fi
                        ;;
                    *)
                        die "ERROR: can not find libbluray."
                        ;;
                esac
                disable libbluray_external
                ;;
            *)
                # FreeBSD provides libbluray 1.0.2
                # All others unknown.
                die "ERROR: can not find libbluray."
                ;;
        esac
    fi
fi

antbin=""
if enabled bdjava; then
    enabled x86_64 && java_arch=amd64
    enabled x86_32 && java_arch=i386
    enabled arm    && java_arch=arm

    antbin=`which ant`
    if test x"$antbin" = x"" ; then
        die "ERROR: BD-J requires ANT, but ant was not found. Please install it."
    fi

    if test "$bdj_type" = "j2me"; then
        enable bdj_j2me
    fi

    # Probably makes little sense to try to process Bluray menus without fontconfig
    enable fontconfig
fi

enabled pthreads &&
    check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

# On some systems dynamic loading requires no extra linker flags
check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

check_lib libm math.h sin -lm && LIBM="-lm"

atan2f_args=2
copysign_args=2
hypot_args=2
ldexpf_args=2
powf_args=2

for func in $MATH_FUNCS; do
    eval check_mathfunc $func \${${func}_args:-1} $LIBM
done

for func in $COMPLEX_FUNCS; do
    eval check_complexfunc $func \${${func}_args:-1}
done

# these are off by default, so fail if requested and not available
enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }
enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
enabled fontconfig        && enable libfontconfig
enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
enabled libfreetype       && require_pkg_config libfreetype2 freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

enabled libx264           && { use_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
                               { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&
                                 warn "using libx264 without pkg-config"; } } &&
                             require_cpp_condition x264.h "X264_BUILD >= 118" &&
                             { check_cpp_condition x264.h "X264_MPEG2" &&
                               enable libx262; }
enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml/xmlversion.h xmlCheckVersion
enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
                               check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
                               check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
                               check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
                               check_lib opengl GLES/gl.h glGetError "-Wl,-framework,OpenGLES" ||
                               { check_pkg_config GLESv2 glesv2 GLES2/gl2.h glGetError &&
                                 check_pkg_config EGL egl EGL/egl.h eglGetProcAddress &&
                                 enable opengl
                               } ||
                               { check_lib GLESv2 GLES2/gl2.h glGetError "-lGLESv2" &&
                                 check_lib EGL EGL/egl.h eglGetProcAddress "-lEGL" &&
                                 enable opengl
                               } ||
                               die "ERROR: opengl not found."
                             }

enabled egl &&  { check_lib EGL EGL/egl.h eglGetProcAddress "-lEGL" ||
                  {
                    check_pkg_config EGL egl EGL/egl.h eglGetProcAddress && enable egl
                  }
                }

enabled drm && use_pkg_config libdrm libdrm xf86drm.h drmGetVersion || disable drm
enabled drm && check_cpp_condition drm_fourcc.h 'defined(DRM_FORMAT_MOD_LINEAR)' || disable drm

if enabled libmpeg2external; then
    check_lib libmpeg2external mpeg2dec/mpeg2.h mpeg2_init -lmpeg2 || disable libmpeg2external
    if disabled libmpeg2external; then
        die "Warning! No suitable external libmpeg2 found, use internal copy."
    fi
    disable mythtranscode
fi

if enabled hdhomerun; then
    # Fedora and Debian/Ubuntu use different include directories.  So does OSX.
    if check_header hdhomerun.h ; then
	HDHOMERUN_PREFIX=
    elif check_header hdhomerun/hdhomerun.h ; then
	HDHOMERUN_PREFIX=hdhomerun/
    elif check_header libhdhomerun/hdhomerun.h ; then
	HDHOMERUN_PREFIX=libhdhomerun/
    else
        disable hdhomerun
    fi

    # The switch from v1 to v2 occurred between the 20150615 and 20150826 releases.
    if check_lib libhdhomerun ${HDHOMERUN_PREFIX}hdhomerun.h hdhomerun_discover_find_devices -lhdhomerun; then
        HDHOMERUN_V2=no
    elif check_lib libhdhomerun ${HDHOMERUN_PREFIX}hdhomerun.h hdhomerun_discover_find_devices_v2 -lhdhomerun; then
        HDHOMERUN_V2=yes
    else
        disable hdhomerun
    fi

    if check_lib libhdhomerun ${HDHOMERUN_PREFIX}hdhomerun.h hdhomerun_device_selector_load_from_str -lhdhomerun ; then
        HDHOMERUN_DEVICE_SELECTOR_LOAD_FROM_STR=no
    else
        HDHOMERUN_DEVICE_SELECTOR_LOAD_FROM_STR=yes
    fi
fi

check_header stdint.h

# test for lrint in math.h
check_exec <<EOF && lrint=yes || lrint=no
#define _ISOC9X_SOURCE  1
#include <math.h>
int main( void ) { return (lrint(3.999f) > 0)?0:1; }
EOF

#test for round()
check_exec <<EOF && round=yes || round=no
#define _ISOC9X_SOURCE  1
#include <math.h>
int main( void ) { return (round(3.999f) > 0)?0:1; }
EOF

# test for sync_file_range (linux only system call since 2.6.17)
check_ld "cc" <<EOF #&& enable sync_file_range
#define _GNU_SOURCE
#include <fcntl.h>

int main(int argc, char **argv){
    sync_file_range(0,0,0,0);
    return 0;
}
EOF

# test for sizeof(int)
for sizeof in 1 2 4 8 16; do
    check_cc <<EOF && _sizeof_int=$sizeof && break
void foo(){switch (0) case 0: case (sizeof(int) == $sizeof):;}
EOF
done

# test for sizeof(long)
for sizeof in 1 2 4 8 16; do
  check_cc <<EOF && _sizeof_long=$sizeof && break
void foo(){switch (0) case 0: case (sizeof(long) == $sizeof):;}
EOF
done

if require_pkg_config libfreetype2 freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType ; then
    enable freetype2
else
    disable freetype2
fi

enabled freetype2 ||
    die "ERROR! You must have FreeType installed to compile MythTV."


##########################################

makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
enabled makeinfo \
    && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
    && enable makeinfo_html || disable makeinfo_html
disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
perl -v            > /dev/null 2>&1 && enable perl      || disable perl
pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
# w32api 3.12 had it defined wrong
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

check_type "dshow.h" IBaseFilter

# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
{ check_header dev/bktr/ioctl_meteor.h &&
  check_header dev/bktr/ioctl_bt848.h; } ||
{ check_header machine/ioctl_meteor.h &&
  check_header machine/ioctl_bt848.h; } ||
{ check_header dev/video/meteor/ioctl_meteor.h &&
  check_header dev/video/bktr/ioctl_bt848.h; } ||
check_header dev/ic/bt8xx.h

if check_struct sys/soundcard.h audio_buf_info bytes; then
    enable_safe sys/soundcard.h
else
    check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
    #include <sys/soundcard.h>
    audio_buf_info abc;
EOF
fi
check_header soundcard.h

enabled alsa && check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

enabled jack && check_lib jack jack/jack.h jack_client_open -ljack &&
    check_func jack_port_get_latency_range -ljack &&
    enable audio_jack

# PulseAudio probe
! disabled audio_pulse &&
    check_lib pulse pulse/version.h pa_get_library_version -lpulse &&
    $(pkg-config --atleast-version=0.9.7 libpulse) &&
    enable  audio_pulse ||
    disable audio_pulse

# Enable Pulse Audio output iff not disabled and pulse audio is available
if ! enabled audio_pulse ; then
    disable audio_pulseoutput
elif ! disabled audio_pulseoutput ; then
    enable audio_pulseoutput
fi

# ALSA probe
! disabled audio_alsa &&
    check_lib asound alsa/asoundlib.h snd_asoundlib_version  &&
    check_cpp_condition alsa/asoundlib.h "(defined(SND_PCM_NO_AUTO_RESAMPLE))" &&
    enable  audio_alsa ||
    { { ! enabled audio_alsa || die "ERROR: Alsa >= 1.0.16 required"; } &&
    disable audio_alsa; }

check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

enabled vaapi && enabled opengl &&
    check_header GL/glx.h &&
    check_lib vaapi va/va.h vaInitialize -lva

enabled vaapi &&
    check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
    disable vaapi

enabled vaapi &&
    check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

enabled vaapi &&
    check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

enabled vaapi &&
    check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&
    enable vaapi_1

enabled vdpau &&
    check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
    disable vdpau

enabled vdpau &&
    check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

if test $target_os = linux ; then
    enabled mmal && { check_func_headers interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
                    { ! enabled cross_compile &&
                        add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
                        add_ldflags -L/opt/vc/lib/ &&
                        check_func_headers interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; }
                        check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; } || disable mmal
else
    disable mmal
fi

enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
enabled debug && add_cxxflags -g"$debuglevel"

# add some useful compiler flags if supported
#check_cflags -Wdeclaration-after-statement
check_cflags -Wall
check_cflags -Wextra
if disabled deprecation_warnings; then
    check_cflags -Wno-deprecated-declarations
fi
! disabled optimizations && check_cflags -Wdisabled-optimization
check_cflags -Wpointer-arith
disabled icc && check_cflags -Wredundant-decls
check_cflags -Wwrite-strings
check_cflags -Wundef
#-Wmissing-prototypes breaks zeromq compilation in universal mode
if [ "$target_os" != "darwin" ]; then
    check_cflags -Wmissing-prototypes
fi
check_cflags -Wno-pointer-to-int-cast
check_cflags -Wstrict-prototypes

if enabled extra_warnings; then
    check_cflags -Wcast-qual
    check_cflags -Wextra
    check_cflags -Wpedantic
fi

check_disable_warning(){
    warning_flag=-W${1#-Wno-}
    test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
}

test_cflags -Werror=unused-command-line-argument &&
    append unknown_warning_flags "-Werror=unused-command-line-argument"
test_cflags -Werror=unknown-warning-option &&
    append unknown_warning_flags "-Werror=unknown-warning-option"

check_disable_warning -Wno-parentheses
disabled icc && check_disable_warning -Wno-switch
check_disable_warning -Wno-format-zero-length
check_disable_warning -Wno-pointer-sign
check_disable_warning -Wno-unused-const-variable
check_disable_warning -Wno-bool-operation

check_disable_warning_headers(){
    warning_flag=-W${1#-Wno-}
    test_cflags $warning_flag && add_cflags_headers $1
}

check_disable_warning_headers -Wno-deprecated-declarations
check_disable_warning_headers -Wno-unused-variable

check_cc <<EOF && enable blocks_extension
void (^block)(void);
EOF

# C++ Flags
check_cxxflags -Wall
check_cxxflags -Wextra
check_cxxflags -Wpointer-arith
if disabled deprecation_warnings; then
    check_cxxflags -Wno-deprecated-declarations
fi
#needed for INT64_C in libs/libavformat under g++
check_cxxflags -D__STDC_CONSTANT_MACROS
check_cxxflags -D__STDC_LIMIT_MACROS

# add some linker flags
check_ldflags -Wl,--warn-common
check_ldflags '-Wl,-rpath-link,\${SRC_PATH_BARE}/external/FFmpeg/libpostproc:\${SRC_PATH_BARE}/external/FFmpeg/libswresample:\${SRC_PATH_BARE}/external/FFmpeg/libswscale:\${SRC_PATH_BARE}/external/FFmpeg/libavfilter:\${SRC_PATH_BARE}/external/FFmpeg/libavdevice:\${SRC_PATH_BARE}/external/FFmpeg/libavformat:\${SRC_PATH_BARE}/external/FFmpeg/libavcodec:\${SRC_PATH_BARE}/external/FFmpeg/libavutil:\${SRC_PATH_BARE}/external/FFmpeg/libavresample'
enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

# add some strip flags
check_stripflags -x

enabled neon_clobber_test &&
    check_ldflags -Wl,--wrap,avcodec_open2              \
                  -Wl,--wrap,avcodec_decode_audio4      \
                  -Wl,--wrap,avcodec_decode_video2      \
                  -Wl,--wrap,avcodec_decode_subtitle2   \
                  -Wl,--wrap,avcodec_encode_audio2      \
                  -Wl,--wrap,avcodec_encode_video2      \
                  -Wl,--wrap,avcodec_encode_subtitle    \
                  -Wl,--wrap,avcodec_send_packet        \
                  -Wl,--wrap,avcodec_receive_packet     \
                  -Wl,--wrap,avcodec_send_frame         \
                  -Wl,--wrap,avcodec_receive_frame      \
                  -Wl,--wrap,swr_convert                \
                  -Wl,--wrap,avresample_convert ||
    disable neon_clobber_test

enabled xmm_clobber_test &&
    check_ldflags -Wl,--wrap,avcodec_open2              \
                  -Wl,--wrap,avcodec_decode_audio4      \
                  -Wl,--wrap,avcodec_decode_video2      \
                  -Wl,--wrap,avcodec_decode_subtitle2   \
                  -Wl,--wrap,avcodec_encode_audio2      \
                  -Wl,--wrap,avcodec_encode_video2      \
                  -Wl,--wrap,avcodec_encode_subtitle    \
                  -Wl,--wrap,avcodec_send_packet        \
                  -Wl,--wrap,avcodec_receive_packet     \
                  -Wl,--wrap,avcodec_send_frame         \
                  -Wl,--wrap,avcodec_receive_frame      \
                  -Wl,--wrap,swr_convert                \
                  -Wl,--wrap,avresample_convert         \
                  -Wl,--wrap,sws_scale ||
    disable xmm_clobber_test

check_ld "cc" <<EOF && enable proper_dce
extern const int array[512];
static inline int func(void) { return array[0]; }
int main(void) { return 0; }
EOF

if enabled proper_dce; then
    echo "X { local: *; };" > $TMPV
    if test_ldflags -Wl,${version_script},$TMPV; then
        append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
        check_cc <<EOF && enable symver_asm_label
void ff_foo(void) __asm__ ("av_foo@VERSION");
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
EOF
        check_cc <<EOF && enable symver_gnu_asm
__asm__(".symver ff_foo,av_foo@VERSION");
void ff_foo(void) {}
EOF
    fi
fi

if [ -z "$optflags" ]; then
    if enabled small; then
        optflags=$cflags_size
    elif enabled optimizations; then
        optflags=$cflags_speed
    else
        optflags=$cflags_noopt
    fi
fi

if [ -z "$nvccflags" ]; then
    nvccflags=$nvccflags_default
fi

if enabled x86_64 || enabled ppc64 || enabled aarch64; then
    nvccflags="$nvccflags -m64"
else
    nvccflags="$nvccflags -m32"
fi

check_optflags(){
    check_cflags "$@"
    enabled lto && check_ldflags "$@"
}

check_optflags $optflags
check_optflags -fno-math-errno
check_optflags -fno-signed-zeros

if enabled lto; then
    test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
    check_cflags  -flto
    check_ldflags -flto $cpuflags
    disable inline_asm_direct_symbol_refs
fi

if enabled dvb; then
    [ -d "$dvb_path" ] || dvb_path="${sysroot}/usr/include"
    if test -f "$dvb_path"/linux/dvb/frontend.h ; then
        if test -f "$dvb_path"/../MAINTAINERS ; then
            echo "Warning: DVB location in kernel. May not compile."
        fi
    else
        KERNEL_RELEASE=`uname -r 2>/dev/null`
        if test x"$KERNEL_RELEASE" != x"" ; then
            dvb_path="${sysroot}/usr/src/linux-$KERNEL_RELEASE/include"
            [ -d "$dvb_path" ] ||\
                dvb_path="${sysroot}/usr/src/linux-headers-$KERNEL_RELEASE/include/uapi"
        else
            dvb_path="${sysroot}/usr/src/linux/include"
        fi

        if test -f "$dvb_path"/linux/dvb/frontend.h ; then
            if test -f "$dvb_path"/../MAINTAINERS ; then
                echo "Warning: DVB location in kernel. May not compile."
            fi
        else
            echo "DVB location needs to have linux/dvb/frontend.h [$dvb_path]"
            disable dvb
        fi
    fi
fi


enabled dvb && check_cc -I"$dvb_path" <<EOF && enable fe_can_2g_modulation
#include <linux/dvb/frontend.h>
int main(void) {
    if (FE_CAN_2G_MODULATION)
        return 1;
    return 0;
}
EOF

enabled asi && check_cc <<EOF || disable asi
#include <dveo/asi.h>
#include <dveo/master.h>
int main(void) { return 1; }
EOF

if enabled systemd_notify ; then
    if check_pkg_config systemd_notify libsystemd-daemon systemd/sd-daemon.h sd_notify ; then
        require_pkg_config systemd_notify libsystemd-daemon systemd/sd-daemon.h sd_notify
    elif check_pkg_config systemd_notify libsystemd systemd/sd-daemon.h sd_notify ; then
        require_pkg_config systemd_notify libsystemd systemd/sd-daemon.h sd_notify
    else
        disable systemd_notify
    fi
fi

if enabled systemd_journal ; then
   if check_pkg_config systemd_journal libsystemd systemd/sd-journal.h sd_journal_send ; then
        require_pkg_config systemd_journal libsystemd systemd/sd-journal.h sd_journal_send
   else
        disable systemd_journal
   fi
fi

# Check that all MythTV build "requirements" are met:
enabled exiv2 && $(pkg-config --exists exiv2) ||
    die "ERROR! You must have the Exiv2 image tag reader library installed to compile MythTV."

# Qt dependency checks
if test $target_os = mingw32 ; then
    qt_inc="-I`cd $(${qmake} -query QT_INSTALL_HEADERS); pwd`"
    qt_libs="-L`cd $(${qmake} -query QT_INSTALL_LIBS) ; pwd`"
elif test $target_os = darwin ; then
    qt_inc="-I`cd $(${qmake} -query QT_INSTALL_HEADERS); pwd` -F`cd $(${qmake} -query QT_INSTALL_LIBS); pwd`"
    qt_libs="-L`cd $(${qmake} -query QT_INSTALL_LIBS) ; pwd`"
elif test $target_os = android ; then
    qt_inc="-I$(${qmake} -query QT_INSTALL_HEADERS)"
    qt_libs="-L$(${qmake} -query QT_INSTALL_LIBS)"
else
    qt_inc="-I${sysroot}/$(${qmake} -query QT_INSTALL_HEADERS)"
    qt_libs="-L${sysroot}/$(${qmake} -query QT_INSTALL_LIBS)"
fi

qt_compiler_check() {
    log "qt_compiler_check $@"
    "qt_compiler_check $@" >> $logfile 2>&1
    check_ecxx ${qt_inc} <<EOF
#include <QtCore/QtCore>
#ifndef $1
   Fail this test compile with garbage!!!
#endif
int x;
EOF
}

qt_compiler_check Q_COMPILER_NULLPTR && enable enforce_nullptr
case "$cc_type" in
    gcc)
        # Gcc < 6 doesn't seem to ignore warnings in system headers
        if [ $gxx_major -lt 6 ] ; then
            disable enforce_nullptr
        fi
        ;;
    clang)
        if [ $clangxx_major -lt 6 ]; then
            # The zero-as-null-pointer-constant warning wasn't added
            # until clang 5.0, and clang < 6 doesn't seem to ignore
            # warnings in all system headers.
            disable enforce_nullptr
        fi
        # Clang on FreeBSD doesn't ignore warnings in system headers.
        # A trivial test shows that Clang defaults /usr/local/include
        # to a system directory, but somehow this gets messed up in
        # MythTV builds.
        if test $target_os = "freebsd"; then
            disable enforce_nullptr
        fi
        ## Clang on MacOSX also doesn't ignore warnings in system headers.
        if test $target_os = "darwin"; then
            disable enforce_nullptr
        fi
        if enabled compdb; then
            warn "Enabling clang's compdb support will disable ccache."
        fi
        ;;
esac

enable enforce_wshadow
case $target_os in
    android)
        disable enforce_wshadow
        ;;
    linux)
        . /etc/os-release
        if test $ID = "centos"; then
            disable enforce_wshadow
        fi
        ;;
esac

if $(pkg-config --exists Qt5WebKit) || $(pkg-config --exists QtWebKit) ; then
    enable qtwebkit
else
    check_ecxx ${qt_inc} ${qt_inc}/QtCore <<EOF && enable qtwebkit
#include <QtWebKit/QtWebKit>
int main(void){ return 0; }
EOF
fi

enabled qtwebkit || warn "QtWebkit headers not found. Plugins may fail."

if $(pkg-config --exists Qt5Script) || $(pkg-config --exists QtScript) ; then
    enable qtscript
else
    check_ecxx ${qt_inc} <<EOF && enable qtscript
#include <QtScript/QtScript>
int main(void){ return 0; }
EOF
fi

enabled qtscript || die "Error! QtScript headers not found"

# Check if Qt was built with DBus support:
if ! disabled qtdbus; then
    if $(pkg-config --exists QtDBus) ; then
        enable qtdbus
    else
        check_ecxx ${qt_inc} <<EOF && enable qtdbus
#include <QtDBus/QtDBus>
#include <QtDBus/QDBusInterface>
int main(void)
{
    QDBusInterface test("org.kde.test", "/test", "org.kde.blah");
    return 0;
}
EOF
    fi
fi

if enabled firewire; then
    fwlibs=""
    check_libx fwlibs libavc1394/avc1394.h avc1394_transaction_block2 -lavc1394 && check_libx fwlibs libiec61883/iec61883.h iec61883_cmp_reconnect -liec61883 || disable firewire

    if test $target_os = darwin; then
        if [ -n "$firewiresdk_path" ] ; then
            mac_avc="$firewiresdk_path"
        else
            # This should pick the newest. e.g. FireWireSDK21 instead of 20
            # Unfortunately, the location keeps changing:
            #/Developer/FireWireSDK20/Examples/AVCVideoServices/Framework
            #/Developer/FireWireSDK21/Examples/Framework
            mac_avc=`find /Developer/FireWireSDK* -name Framework 2> /dev/null \
                    | tail -n 1`
        fi
        if test -d "$mac_avc" ; then
            firewire="yes"
        else
            echo Firewire being disabled. FireWire SDK missing
        fi
    fi
fi

enabled libfftw3 && check_lib fftw3_threads fftw3.h fftw_init_threads -lfftw3_threads -lfftw3f -lfftw3 ||
    disable libfftw3

# ass_flush_events was added in 0.9.10
if test $target_os = "android"; then
	ASS_EXTRA_LIBS="-liconv -lfribidi -lfreetype"
fi
enabled libass && check_lib ass ass/ass.h ass_flush_events "-lass $ASS_EXTRA_LIBS" || disable libass

if enabled libcec ; then
    if pkg-config --exists libcec; then
        libcec_path=`pkg-config --variable includedir libcec`
    else
        check_cxx -I"$libcec_path" <<EOF || { disable libcec; }
#include <libcec/cec.h>
#include <iostream>
using namespace std;
using namespace CEC;
#include <libcec/cecloader.h>
int main(void) {
    #if (CEC_LIB_VERSION_MAJOR < 2)
        #error libcec version to old
    #endif
    return 1;
}
EOF
    fi
fi

enabled libcrypto && check_lib crypto openssl/rsa.h RSA_new -lcrypto || disable libcrypto

if test $target_os != darwin ; then
    enabled libdns_sd && check_lib dns_sd dns_sd.h DNSServiceRegister -ldns_sd || disable libdns_sd
fi

if enabled libxml2 ; then
   if pkg-config --exists libxml-2.0 ; then
        libxml2_path=`pkg-config --cflags-only-I libxml-2.0|sed -n "s/-I\([^ ]*\) *$/\1/p"`
   else
        disable libxml2
   fi
fi
enabled libxml2 && check_cc -I"$libxml2_path" <<EOF && add_extralibs "-lxml2" || disable libxml2
#include <libxml/xmlversion.h>
int main(void) {
    #if (LIBXML_VERSION < 20600)
        #error libxml2 version to old
    #endif
    return 0;
}
EOF

if enabled taglib; then
    taglib_include=`taglib-config --prefix`/include/taglib
    taglib_libs=`taglib-config --libs`
fi

if enabled x11; then
    if enabled opengles; then
        check_libx gl_lib GLES2/gl2.h glClear -lGLESv2 || disable opengles
    fi
fi

enabled x11 && check_lib X11 "X11/Xdefs.h X11/Xlib.h" XQueryExtension  -lX11 || disable x11
enabled xrandr && check_lib Xrandr "X11/Xdefs.h X11/Xlib.h X11/extensions/Xrandr.h" XRRSelectInput -lXrandr || disable xrandr

if enabled x11; then
    require libXxf86vm "X11/Xdefs.h X11/Xlib.h X11/extensions/xf86vmode.h" XF86VidModeSetClientVersion -lXxf86vm
    require libXinerama X11/extensions/Xinerama.h XineramaQueryExtension -lXinerama
    require libXext "X11/Xdefs.h X11/Xlib.h X11/extensions/Xext.h" XMissingExtension -lXext
fi

# CoreVideo in only available on Mac OS 10.4, or on 10.3 with QuickTime 7.
# This checks for it, and some other calls that the module needs
if test $target_os = darwin; then
    cat > $TMPC << EOF
#include <AGL/agl.h>
int main( void ) { return aglGetCGLContext(0,0L); }
EOF
    if $cc -o $TMPE $TMPC -framework AGL > /dev/null 2>&1; then
        mac_corevideo="yes"
    fi
fi

if test $target_os = darwin; then
    # So far, only OS X 10.4 has this as a non-private framework
    if test -d /System/Library/Frameworks/DiskArbitration.framework/Headers ; then
        darwin_da="yes"
    fi
fi

if [ -n "$optflags" ]; then
    add_cflags $optflags
elif enabled small; then
    add_cflags $cflags_size
elif enabled optimizations; then
    add_cflags $cflags_speed
else
    add_cflags $cflags_noopt
fi
check_cflags -fno-math-errno
check_cflags -fno-signed-zeros
check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
int x;
EOF


if enabled icc; then
    # Just warnings, no remarks
    check_cflags -w1
    # -wd: Disable following warnings
    # 144, 167, 556: -Wno-pointer-sign
    # 188: enumerated type mixed with another type
    # 1292: attribute "foo" ignored
    # 1419: external declaration in primary source file
    # 10006: ignoring unknown option -fno-signed-zeros
    # 10148: ignoring unknown option -Wno-parentheses
    # 10156: ignoring option '-W'; no argument required
    # 13200: No EMMS instruction before call to function
    # 13203: No EMMS instruction before return from function
    check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
    # 11030: Warning unknown option --as-needed
    # 10156: ignoring option '-export'; no argument required
    check_ldflags -wd10156,11030
    # -wd: Disable the following warnings for MythTV
    # 177: function declared but never referenced (triggers on Q_OBJECT)
    # 592: variable is used before its value is set (triggers on (void)x;)
    # 913: ignoring invalid multibyte character sequence,
    #      icpc and g++ do the right thing for char 0x80-0xFF
    # 13200: ignore EMMS instruction required, filters do the right thing
    check_cflags -wd177,592,913,13200
    # -wd: Disable the following warnings for MythTV
    # 10159: ignore invalid argument for option '-m'
    check_ldflags -wd10159
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
    enable ebp_available
    # The test above does not test linking
    enabled lto && disable symver_asm_label
    if enabled x86_32; then
        icc_version=$($cc -dumpversion)
        test ${icc_version%%.*} -ge 11 &&
            check_cflags -falign-stack=maintain-16-byte ||
            disable aligned_stack
    fi
elif enabled ccc; then
    # disable some annoying warnings
    add_cflags -msg_disable bitnotint
    add_cflags -msg_disable mixfuncvoid
    add_cflags -msg_disable nonstandcast
    add_cflags -msg_disable unsupieee
elif enabled gcc; then
    check_optflags -fno-tree-vectorize
    check_cflags -Werror=format-security
    check_cflags -Werror=implicit-function-declaration
#    check_cflags -Werror=missing-prototypes
    check_cflags -Werror=return-type
    check_cflags -Werror=vla
    check_cflags -fdiagnostics-color=auto
    enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
    check_cflags -Wdouble-promotion
    #check_cflags -Wduplicated-branches
    check_cflags -Wduplicated-cond
    check_cflags -Wjump-misses-init
    check_cflags -Wlogical-op
    check_cflags -Wnull-dereference
    if enabled enforce_wshadow ; then
        check_cflags -Wshadow
    fi
elif enabled llvm_gcc; then
    check_cflags -mllvm -stack-alignment=16
elif enabled clang; then
    check_cflags -mllvm -stack-alignment=16
    check_cflags -mstack-alignment=16
    check_cflags -Qunused-arguments
    check_cflags -Werror=implicit-function-declaration
#   check_cflags -Werror=missing-prototypes
    check_cflags -Werror=return-type
elif enabled cparser; then
    add_cflags -Wno-missing-variable-declarations
    add_cflags -Wno-empty-statement
elif enabled armcc; then
    add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
    add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
    # 2523: use of inline assembly is deprecated
    add_cflags -W${armcc_opt},--diag_suppress=2523
    add_cflags -W${armcc_opt},--diag_suppress=1207
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
    add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
    add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
elif enabled tms470; then
    add_cflags -pds=824 -pds=837
    disable inline_asm
elif enabled pathscale; then
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
elif enabled_any msvc icl; then
    enabled x86_32 && disable aligned_stack
    enabled_all x86_32 debug && add_cflags -Oy-
    enabled debug && add_ldflags -debug
    enable pragma_deprecated
    if enabled icl; then
        # -Qansi-alias is basically -fstrict-aliasing, but does not work
        # (correctly) on icl 13.x.
        check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
            add_cflags -Qansi-alias
        # Some inline asm is not compilable in debug
        if enabled debug; then
            disable ebp_available
            disable ebx_available
        fi
    fi
    # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
    check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
    # The CRT headers contain __declspec(restrict) in a few places, but if redefining
    # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
    # (as it ends up if the restrict redefine is done before including stdlib.h), while
    # MSVC 2013 and newer can handle it fine.
    # If this declspec fails, force including stdlib.h before the restrict redefinition
    # happens in config.h.
    if [ $_restrict != restrict ]; then
        check_cc <<EOF || add_cflags -FIstdlib.h
__declspec($_restrict) void* foo(int);
EOF
    fi
    # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
    # Issue has been fixed in MSVC v19.00.24218.
    check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
        check_cflags -d2SSAOptimizer-
    # enable utf-8 source processing on VS2015 U2 and newer
    check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
        add_cflags -utf-8
fi

for pfx in "" host_; do
    varname=${pfx%_}cc_type
    eval "type=\$$varname"
    if [ "$type" = "msvc" ]; then
        check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
static inline int foo(int a) { return a; }
EOF
    fi
done

case $as_type in
    clang)
        add_asflags -Qunused-arguments
    ;;
esac

case $ld_type in
    clang)
        check_ldflags -Qunused-arguments
    ;;
esac

if enabled gxx; then
    if enabled symbol_visibility; then
        check_cxxflags -fvisibility-inlines-hidden
        append CCONFIG "use_hidesyms"
    fi
    check_cxxflags -Wdouble-promotion
    #check_cxxflags -Wduplicated-branches
    check_cxxflags -Wduplicated-cond
    check_cxxflags -Wlogical-op
    check_cxxflags -Wmissing-declarations
    check_cxxflags -Wnull-dereference
    check_cxxflags -Woverloaded-virtual
    if enabled enforce_wshadow ; then
        check_cxxflags -Wshadow
    fi

    # This warning flag isn't enabled yet because it will require a
    # large number of changes to the code to eliminate all the
    # warnings.
    #check_cxxflags -Wold-style-cast

    # This warning flag can't be enabled because the Qt5 moc compiler
    # produces files that contain "useless" casts.
    #check_cxxflags -Wuseless-cast

    # Ubuntu 16.04 uses gcc 5.4.0 which complains about '[[clang::fallthrough]]'
    gxx_major_version=$(echo $gxx_version | sed -e 's/\([[:digit:]]\)\{1,\}.*/\1/')
    if test $gxx_major_version -lt 7; then
        if enabled arm; then
            check_cxxflags -Wno-psabi
        fi
        check_cxxflags -Wno-attributes
    fi
    # GCC on centos7 doesn't handle the '{}' initializer properly.
    if test $gxx_major_version -lt 5; then
        check_cxxflags -Wno-missing-field-initializers
    fi
    check_cxxflags -funit-at-a-time
    # Don't complain about over-aligned types
    check_cxxflags -faligned-new
    if enabled enforce_nullptr; then
        check_cxxflags -Wzero-as-null-pointer-constant
    fi
    # Ubuntu 16.04 has problems with this flag.  Its not GCC or Qt, as
    # both older compilers and/or older Qt versions on other systems
    # produce clean output.  This is a simple check to eliminate that
    # specific version (and more, but it gets the job done).
    if [ $qt_version -ge $(version2num "5.7.0") ]; then
        check_cxxflags -Wsuggest-override
    fi
elif enabled icpc; then
    # 177: function declared but never referenced (triggers on Q_OBJECT)
    # 192: icpc confused by Qt %0-%99 in strings
    # 592: variable is used before its value is set (triggers on (void)x;)
    # 913: ignoring invalid multibyte character sequence,
    #      icpc and g++ do the right thing for char 0x80-0xFF
    # 10181: ignore warning about -fomit-frame-pointer being ignored
    # 13200: ignore EMMS instruction required, RTjpegN.cpp does the right thing
    check_cxxflags -wd177,192,592,913,10181,13200
    check_cxxflags -std=c++11
elif enabled clangxx; then
    # The constant-logical-operand only gives use false positives
    # for constant logical operands meant to be optimized away.
    check_cxxflags -Wno-constant-logical-operand
    # Unfortunately clang's unused-value warning is smart enough to notice
    # that ZMQ_ASSERT expressions don't use the values unless it is a debug
    # build. So lets rely on other compilers to report on unused values.
    check_cxxflags -Wno-unused-value
    # clang complains about every unused -I unless you pass it this.
    check_cxxflags -Qunused-arguments
    # Flag implicit fallthrough in case statements
    check_cxxflags -Wimplicit-fallthrough
    # Clang needs this to link on Fedora
    add_extralibs -lstdc++
    # Don't complain about over-aligned types.
    case $target_os in
        freebsd)
            # The libc++ library on FreeBSD 10 is missing the required
            # new() function and doesn't work with this flag enabled.
            if test $(uname -K) -gt 1100000; then
                check_cxxflags -faligned-allocation
            fi
            ;;
        darwin)
            # OSX compiles aren't happy with aligned allocation.
            ;;
        *)
            check_cxxflags -faligned-allocation
            ;;
    esac
    if enabled enforce_nullptr; then
        check_cxxflags -Wzero-as-null-pointer-constant
    fi
fi

# Check for python dependencies
if enabled bindings_python; then
    check_python               || disable_bindings_python "Python 2.6 or greater"
    check_py_lib MySQLdb       || disable_bindings_python "MySQLdb"
    check_py_lib lxml          || disable_bindings_python "lxml"
    check_py_lib requests      || disable_bindings_python "requests"
    check_py_lib simplejson    || disable_bindings_python "simplejson"
    check_py_lib future        || disable_bindings_python "future"
fi

# Check for perl dependencies
# Modules distributed in Perl core
if enabled bindings_perl; then
    check_pl_lib "ExtUtils::MakeMaker" ||
        disable_bindings_perl "ExtUtils::MakeMaker"
    check_pl_lib Config           || disable_bindings_perl Config
    check_pl_lib Exporter         || disable_bindings_perl Exporter
    check_pl_lib Fcntl            || disable_bindings_perl Fcntl
    check_pl_lib "File::Copy"     || disable_bindings_perl "File::Copy"
    check_pl_lib "Sys::Hostname"  || disable_bindings_perl "Sys::Hostname"
# Modules not distributed in Perl core
    check_pl_lib DBI              || disable_bindings_perl DBI
    check_pl_lib "DBD::mysql"     || disable_bindings_perl "DBD::mysql"
    check_pl_lib "HTTP::Request"  || disable_bindings_perl "HTTP::Request"
    check_pl_lib "LWP::UserAgent" || disable_bindings_perl "LWP::UserAgent"
    check_pl_lib "Net::UPnP::QueryResponse" ||
        disable_bindings_perl "Net::UPnP::QueryResponse"
    check_pl_lib "Net::UPnP::ControlPoint"  ||
        disable_bindings_perl "Net::UPnP::ControlPoint"
    check_pl_lib "IO::Socket::INET6"  ||
        disable_bindings_perl "IO::Socket::INET6"
    check_pl_lib "XML::Simple"  || disable_bindings_perl "XML::Simple"
fi

# nvdec processing
here="$PWD"
cd external/nv-codec-headers
if enabled nvdec ; then
    if test $target_os = "freebsd"; then
        gmake install PREFIX=$PWD/install
    else
        make install PREFIX=$PWD/install
    fi
    if [ "$?" != 0 ] ; then die "Build of nv-codec-headers failed." ; fi
    PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$PWD/install/lib/pkgconfig"
    export PKG_CONFIG_PATH
else
    rm -rf install ffnvcodec.pc
fi
cd "$here"

# Check for php dependencies
# are none at this time

case $target_os in
    osf1)
        enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
    ;;
esac

enable frame_thread_encoder

enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

check_deps $CONFIG_LIST       \
           $CONFIG_EXTRA      \
           $HAVE_LIST         \
           $ALL_COMPONENTS    \
           $MYTHTV_LIST       \
           $MYTHTV_CONFIG_LIST \
           $MYTHTV_HAVE_LIST  \
           $USING_LIST        \

enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"


if test $target_os = "haiku"; then
    disable memalign
    disable posix_memalign
fi

# add_dep lib dep
# -> enable ${lib}_deps_${dep}
# -> add $dep to ${lib}_deps only once
add_dep() {
    lib=$1
    dep=$2
    enabled "${lib}_deps_${dep}" && return 0
    enable  "${lib}_deps_${dep}"
    prepend "${lib}_deps" $dep
}

# merge deps lib components
# merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
merge_deps() {
    lib=$1
    shift
    for comp in $*; do
        enabled $comp || continue
        eval "dep=\"\$${comp}_deps\""
        for d in $dep; do
            add_dep $lib $d
        done
    done
}

merge_deps libavfilter $FILTER_LIST

map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

for thread in $THREADS_LIST; do
    if enabled $thread; then
        test -n "$thread_type" &&
            die "ERROR: Only one thread type must be selected." ||
            thread_type="$thread"
    fi
done

if disabled stdatomic_h; then
    if enabled atomics_gcc; then
        add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
    elif enabled atomics_win32; then
        add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
    elif enabled atomics_suncc; then
        add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
    elif enabled pthreads; then
        add_compat atomics/pthread/stdatomic.o
        add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
    else
        enabled threads && die "Threading is enabled, but no atomics are available"
        add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
    fi
fi

# Check if requested libraries were found.
for lib in $AUTODETECT_LIBS; do
    requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
done

enabled zlib && add_cppflags -DZLIB_CONST

# conditional library dependencies, in linking order
enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
enabled afir_filter         && prepend avfilter_deps "avcodec"
enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
enabled aresample_filter    && prepend avfilter_deps "swresample"
enabled atempo_filter       && prepend avfilter_deps "avcodec"
enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
enabled elbg_filter         && prepend avfilter_deps "avcodec"
enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
enabled firequalizer_filter && prepend avfilter_deps "avcodec"
enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
enabled pan_filter          && prepend avfilter_deps "swresample"
enabled pp_filter           && prepend avfilter_deps "postproc"
enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
enabled resample_filter && prepend avfilter_deps "avresample"
enabled sab_filter          && prepend avfilter_deps "swscale"
enabled scale_filter    && prepend avfilter_deps "swscale"
enabled scale2ref_filter    && prepend avfilter_deps "swscale"
enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
enabled showspectrum_filter && prepend avfilter_deps "avcodec"
enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
enabled smartblur_filter    && prepend avfilter_deps "swscale"
enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
enabled spp_filter          && prepend avfilter_deps "avcodec"
enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
enabled uspp_filter         && prepend avfilter_deps "avcodec"
enabled zoompan_filter      && prepend avfilter_deps "swscale"

enabled lavfi_indev         && prepend avdevice_deps "avfilter"

expand_deps(){
    lib_deps=${1}_deps
    eval "deps=\$$lib_deps"
    append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
    unique $lib_deps
}

#we have to remove gpl from the deps here as some code assumes all lib deps are libs
postproc_deps="$(filter_out 'gpl' $postproc_deps)"

map 'expand_deps $v' $LIBRARY_LIST

if enabled x86 && (disabled mmx && ! enabled disable_mmx_for_debugging); then
    die "ERROR: MMX disabled on x86, MythTV will be very slow.\n\tDisable this check with --enable-disable-mmx-for-debugging"
fi

enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

license="LGPL version 2.1 or later"
if enabled nonfree; then
    license="nonfree and unredistributable"
elif enabled gplv3; then
    license="GPL version 3 or later"
elif enabled lgplv3; then
    license="LGPL version 3 or later"
elif enabled gpl; then
    license="GPL version 2 or later"
fi

# Set up FFmpeg configure options that are derived from
# MythTV configure options

ffmpeg_optset() {
    while test -n "$1" ; do
        val=$(eval "echo \$$1")
        if test -n "$val" ; then
            ffopts="$ffopts '--$1=$(echo "$val")'"
        fi
        shift
    done
}

ffmpeg_optenable() {
    while test -n "$1" ; do
        val=$(eval "echo \$$1")
        if enabled "$1" ; then
            ffopts="$ffopts --enable-"$(echo "$1" | sed 's/_/-/g')
        else
            ffopts="$ffopts --disable-"$(echo "$1" | sed 's/_/-/g')
        fi
        shift
    done
}

ffopts=
ffmpeg_optset arch cross_prefix sysroot sysinclude cc cxx ld cpu
ffmpeg_optset extra_cxxflags extra_ldflags target_os
ffmpeg_optset pkg_config prefix libdir as objcc dep_cc host_cc
ffmpeg_optset host_ld
ffmpeg_optenable cross_compile libmp3lame libx264 libx265 libvpx libxvid
ffmpeg_optenable vdpau libxml2 libass dxva2
ffmpeg_optenable libbluray libfontconfig libfreetype libiec61883
ffmpeg_optenable crystalhd sdl2 ffplay

if test $target_os = "android"; then
    enabled mediacodec && enable jni
    ffmpeg_optenable mediacodec jni
    # udp is causing compile errors on android and it is not needed
    ffopts="$ffopts --disable-protocol=udp --disable-protocol=udplite"
else
    disable mediacodec
fi
if enabled vaapi; then
    ffopts="$ffopts --enable-vaapi"
fi

if enabled mmal; then
    ffopts="$ffopts --enable-mmal"
fi

if enabled drm; then
    ffopts="$ffopts --enable-libdrm"
fi

ffmpeg_extra_cflags="$extra_cflags -w"

## Call FFmpeg configure here
echo
echo '#### FFmpeg CONFIGURATION ####'
currentpwd="$PWD"
cd external/FFmpeg
eval ./configure \
$ffopts \
--extra-cflags='"$ffmpeg_extra_cflags"' \
--extra-ldflags='"$ffmpeg_extra_ldflags"' \
--enable-stripping \
--strip='"echo skipping strip"' \
--disable-manpages  \
--disable-podpages  \
--disable-doc \
--disable-nvenc \
--enable-shared \
--disable-static \
--enable-gpl \
--enable-pic \
--disable-demuxer=mpegtsraw \
--disable-indev=dshow
rc=$?
if [ $rc != 0 ] ; then
    echo "ERROR FFmpeg configure failed"
    exit $rc
fi
cd "$currentpwd"

# If ffmpeg disabled nvdec then disable it for mythtv
if ! grep "^CONFIG_NVDEC=yes$" external/FFmpeg/ffbuild/config.mak ; then
    disable nvdec
fi

if test "$quiet" != "yes"; then

echo
echo '#### MythTV CONFIGURATION ####'
echo "# Basic Settings"
echo "Qt minimum version        $QT_MIN_VERSION_STR"
echo "Qt installed version      `$qmake -query QT_VERSION`"
echo "Compile type              $compile_type"
echo "Compiler cache            $ccache$ccache_txt"
echo "DistCC                    $distcc$distcc_txt"
echo "qmake                     $(which $qmake)"
echo "install prefix            $prefix"
echo "runtime prefix            $runprefix"

if enabled cpu_override && test x"$cpu" != x"generic"; then
    echo "CPU                       $arch $subarch ($cpu)"
elif test x"$processor" != x"" ; then
    echo "CPU                       $arch $subarch ($processor)"
else
    echo "CPU                       $arch $subarch"
fi

if enabled x86; then
    echo "standalone assembly       ${x86asm-no}"
    echo "x86 assembler             ${x86asmexe}"
    echo "MMX enabled               ${mmx-no}"
    echo "MMXEXT enabled            ${mmxext-no}"
    echo "3DNow! enabled            ${amd3dnow-no}"
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
    echo "SSE enabled               ${sse-no}"
    echo "SSSE3 enabled             ${ssse3-no}"
    echo "AESNI enabled             ${aesni-no}"
    echo "AVX enabled               ${avx-no}"
    echo "AVX2 enabled              ${avx2-no}"
    echo "XOP enabled               ${xop-no}"
    echo "FMA3 enabled              ${fma3-no}"
    echo "FMA4 enabled              ${fma4-no}"
    echo "i686 features enabled     ${i686-no}"

fi
if enabled aarch64; then
    echo "NEON enabled              ${neon-no}"
    echo "VFP enabled               ${vfp-no}"
fi
if enabled arm; then
    echo "ARMv5TE enabled           ${armv5te-no}"
    echo "ARMv6 enabled             ${armv6-no}"
    echo "ARMv6T2 enabled           ${armv6t2-no}"
    echo "VFP enabled               ${vfp-no}"
    echo "NEON enabled              ${neon-no}"
    echo "THUMB enabled             ${thumb-no}"
fi
if enabled mips; then
    echo "MIPS FPU enabled          ${mipsfpu-no}"
    echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
    echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
    echo "MIPS MSA enabled          ${msa-no}"
    echo "LOONGSON MMI enabled      ${mmi-no}"
fi
if enabled ppc; then
    echo "AltiVec enabled           ${altivec-no}"
    echo "VSX enabled               ${vsx-no}"
    echo "POWER8 enabled            ${power8-no}"
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
    echo "dcbzl available           ${dcbzl-no}"
fi

echo "Creating configuration files ..."

fi # test "$quiet" != "yes"

echo
if enabled frontend; then
  echo "# Input Support"
  echo "Joystick menu             ${joystick_menu-no}"
  echo "lirc support              ${lirc-no}"
  echo "libCEC device support     ${libcec-no} [$libcec_path]"
  if test x"$target_os" = x"darwin" ; then
    echo "Apple Remote              ${appleremote-no}"
  fi
fi

#ignore
# build tree in object directory if source path is different from current one
if enabled source_path_used; then
    DIRS="
        doc
        libavcodec
        libavcodec/$arch
        libavdevice
        libavfilter
        libavformat
        libavutil
        libavutil/$arch
        libpostproc
        libswscale
        libswscale/$arch
        tests
        tools
        external/libmythbluray
        external/libmythdvdnav
        external/libudfread
        external/libmythsoundtouch
    "
    FILES="
        Makefile
        common.mak
        subdir.mak
        doc/texi2pod.pl
        libavcodec/Makefile
        libavcodec/${arch}/Makefile
        libavdevice/Makefile
        libavfilter/Makefile
        libavformat/Makefile
        libavutil/Makefile
        libpostproc/Makefile
        libswscale/Makefile
        external/libmythbluray/Makefile
        external/libmythdvdnav/Makefile
        external/libudfread/Makefile
        external/libmythsoundtouch/Makefile
    "
    map 'mkdir -p $v' $DIRS;
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
fi

enabled stripping || strip="echo skipping strip"
enabled stripping || striptype=""

config_files="$TMPH $TMPMAK doc/config.texi"

if enabled backend; then
  echo "Video4Linux support       ${v4l2-no}"
  echo "ivtv support              ${ivtv-no}"
  echo "HD-PVR support            ${hdpvr-no}"
  echo "FireWire support          ${firewire-no}"
  echo "DVB support               ${dvb-no} [$dvb_path]"
  echo "DVB-S2 support            ${fe_can_2g_modulation-no}"
  echo "HDHomeRun support         ${hdhomerun-no}"
  echo "V@Box TV Gateway support  ${vbox-no}"
  echo "Ceton support             ${ceton-no}"
  echo "DVEO ASI support          ${asi-no}"
fi

if enabled frontend; then
  echo
  echo "# Sound Output Support"
  echo "PulseAudio support        ${audio_pulseoutput-no}"
  echo "OSS support               ${audio_oss-no}"
  echo "ALSA support              ${audio_alsa-no}"
  echo "JACK support              ${audio_jack-no}"
  if test x"$target_os" = x"mingw32" ; then
    echo "Windows (Windows audio)   yes"
    echo "Windows (DirectX)         yes"
  fi
  echo "libfftw3 support          ${libfftw3-no}"
  echo
  echo "# Video Output Support"
  echo "x11 support               ${x11-no}"
if enabled x11 ; then
  echo "xrandr support            ${xrandr-no}"
  echo "VDPAU support             ${vdpau-no}"
  echo "VAAPI support             ${vaapi-no}"
  echo "NVDEC support             ${nvdec-no}"
fi
  echo "DRM support               ${drm-no}"
  echo "Video4Linux codecs        ${v4l2-no} (DRM ${v4l2prime-no})"
  echo "MMAL decoder support      ${mmal-no}"
  echo "OpenGL support            ${opengl-no}"
  echo "OpenGL ES 2.0             ${opengles-no}"
  echo "EGL support               ${egl-no}"
  if test x"$target_os" = x"mingw32" ; then
    echo "Windows (Direct3D)        yes"
    echo "DXVA2 support             ${dxva2-no}"
  fi
  echo "MHEG support              ${mheg}"
  echo "libass subtitle support   ${libass-no}"
  echo
fi

echo "# Misc Features"
echo "Frontend                  ${frontend-no}"
echo "Backend                   ${backend-no}"
echo "multi threaded libavcodec ${threads-no}"
if enabled frontend; then
  echo "libxml2 support           ${libxml2-no} [$libxml2_path]"
fi
echo "libdns_sd (Bonjour)       ${libdns_sd-no}"
echo "libcrypto                 ${libcrypto-no}"
if enabled libbluray_external; then
    echo "bluray support            yes (system)"
else
    echo "bluray support            yes (internal)"
fi
echo "BD-J (Bluray java)        ${bdjava-no}"
echo "BD-J type                 ${bdj_type}"
echo "systemd_notify            ${systemd_notify-no}"
echo "systemd_journal           ${systemd_journal-no}"
echo

echo "# Bindings"
echo "bindings_perl             ${bindings_perl-no}"
if test x"$PERL_CONFIG_OPTS" != x""; then
  echo "Perl config options       $PERL_CONFIG_OPTS"
fi
echo "bindings_python           ${bindings_python-no}"
echo "bindings_php              ${bindings_php-no}"
echo ""

echo "# External Codec Options"
echo "mp3lame                   ${libmp3lame-no}"
echo "xvid                      ${libxvid-no}"
echo "x264                      ${libx264-no}"
echo "x265 (HEVC)               ${libx265-no}"
echo "vpx                       ${libvpx-no}"
echo ""

echo "# Compilation Options"
echo "Enforce c++11 nullptr     ${enforce_nullptr-no}"
echo "Enforce shadowed vars     ${enforce_wshadow-no}"
echo ""

# Remove redundant elements from variables
# keep first instance
unique2 CFLAGS
# keep last instance for correct lib ordering
unique extralibs

if test $target_os = "freebsd"; then
    #Strip certain paths (qmake will add them back at the end of the list)
    LDFLAGS=`echo $LDFLAGS | sed -e 's/-L\/usr\/local\/lib$//'     -e 's/-L\/usr\/local\/lib / /'`
    CFLAGS=`echo $CFLAGS   | sed -e 's/-I\/usr\/local\/include$//' -e 's/-I\/usr\/local\/include / /'`
fi

MYTH_CONFIG_H=libs/libmythbase/mythconfig.h
MYTH_CONFIG_MAK=libs/libmythbase/mythconfig.mak
echo "Creating $MYTH_CONFIG_H and $MYTH_CONFIG_MAK"

date >> config.log
echo "   $0 $MYTHTV_CONFIGURATION" >> config.log

cat > $TMPMAK <<EOF
# Automatically generated by configure - do not modify!
QT_MIN_VERSION_STR=$QT_MIN_VERSION_STR
QT_MIN_VERSION_HEX=$QT_MIN_VERSION_HEX
QT_MIN_VERSION=$QT_MIN_VERSION
MYTHTV_CONFIGURATION=$MYTHTV_CONFIGURATION
MYTHTV_CONFIG_MAK=1
PREFIX=$prefix
prefix=$prefix
LIBDIRNAME=$libdir_name
LIBDIR=$libdir
SHLIBDIR=$shlibdir
INCDIR=$incdir
BINDIR=$bindir
DATADIR=$datadir
MANDIR=$mandir
PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
SRC_PATH="$source_path"
SRC_LINK=$source_link
SRC_PATH_BARE=$source_path
BUILD_ROOT="$PWD"
CC_IDENT=$cc_ident
ARCH=$arch
INTRINSICS=$intrinsics
CC=$cc
CXX=$cxx
AS=$as
OBJCC=$objcc
QMAKE=$qmakeconf
QMAKE_CC=$cc
QMAKE_CXX=$cxx
QMAKE_LINK=$cxx
PYTHON=$python
LD=$ld
DEPCC=$dep_cc
DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
DEPAS=$as
DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
X86ASM=$x86asmexe
DEPX86ASM=$x86asmexe
DEPX86ASMFLAGS=\$(X86ASMFLAGS)
AR=$ar
ARFLAGS=$arflags
AR_O=$ar_o
RANLIB=$ranlib
STRIP=$strip
STRIPTYPE=$striptype
NVCC=$nvcc
CP=cp -p
LN_S=$ln_s
CPPFLAGS=$CPPFLAGS
CFLAGS=$CFLAGS
CXXFLAGS=$CXXFLAGS
OBJCFLAGS=$OBJCFLAGS
ASFLAGS=$ASFLAGS
NVCCFLAGS=$nvccflags
AS_C=$AS_C
AS_O=$AS_O
OBJCC_C=$OBJCC_C
OBJCC_E=$OBJCC_E
OBJCC_O=$OBJCC_O
CC_C=$CC_C
CC_E=$CC_E
CC_O=$CC_O
CXX_C=$CXX_C
CXX_O=$CXX_O
NVCC_C=$NVCC_C
NVCC_O=$NVCC_O
LD_O=$LD_O
X86ASM_O=$X86ASM_O
LD_LIB=$LD_LIB
LD_MYTH_LIB=$LD_MYTH_LIB
LD_PATH=$LD_PATH
DLLTOOL=$dlltool
WINDRES=$windres
DEPWINDRES=$dep_cc
CXXPPFLAGS=$CXXPPFLAGS
ECXXFLAGS=$ECXXFLAGS
DOXYGEN=$doxygen
LDFLAGS=$LDFLAGS
LDFLAGS-ffserver=$FFSERVERLDFLAGS
LDEXEFLAGS=$LDEXEFLAGS
LDLIBFLAGS=$LDLIBFLAGS
ASMSTRIPFLAGS=$ASMSTRIPFLAGS
X86ASMFLAGS=$X86ASMFLAGS
BUILDSUF=$build_suffix
PROGSSUF=$progs_suffix
FULLNAME=$FULLNAME
LIBPREF=$LIBPREF
LIBSUF=$LIBSUF
LIBNAME=$LIBNAME
SLIBPREF=$SLIBPREF
SLIBSUF=$SLIBSUF
EXESUF=$EXESUF
EXTRA_VERSION=$extra_version
CCDEP=$CCDEP
CXXDEP=$CXXDEP
CCDEP_FLAGS=$CCDEP_FLAGS
ASDEP=$ASDEP
ASDEP_FLAGS=$ASDEP_FLAGS
X86ASMDEP=$X86ASMDEP
X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
CC_DEPFLAGS=$CC_DEPFLAGS
AS_DEPFLAGS=$AS_DEPFLAGS
X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
HOSTCC=$host_cc
HOSTLD=$host_ld
HOSTCFLAGS=$host_cflags
HOSTCPPFLAGS=$host_cppflags
HOSTEXESUF=$HOSTEXESUF
HOSTLDFLAGS=$host_ldflags
HOSTEXTRALIBS=$host_extralibs
DEPHOSTCC=$host_cc
DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
HOSTCCDEP=$HOSTCCDEP
HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
HOSTCC_C=$HOSTCC_C
HOSTCC_O=$HOSTCC_O
HOSTLD_O=$HOSTLD_O
TARGET_EXEC=$target_exec $target_exec_args
TARGET_PATH=$target_path
TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
CFLAGS_HEADERS=$CFLAGS_HEADERS
ZLIB=$($ldflags_filter -lz)
EXTRALIBS=$extralibs $ldl
COMPAT_OBJS=$compat_objs
INSTALL=$install
LIBTARGET=${LIBTARGET}
SLIBNAME=${SLIBNAME}
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
SLIBNAME_QT=$(echo ${SLIBNAME} | sed 's/\$(\(\(FULL\)*NAME\))/\1/;s/\$(\([A-Z]*\))/$${\1}/g')
SLIBNAME_WITH_MAJOR_QT=$(echo ${SLIBNAME_WITH_MAJOR} | sed 's/\$(\(\(FULL\)*NAME\))/\1/;s/\$(\(LIBMAJOR\))/\1/;s/\$(\(SLIBNAME\))/$${\1_QT}/;s/\$(\([A-Z]*\))/$${\1}/g')
SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
SAMPLES=$samples
NOREDZONE_FLAGS=$noredzone_flags
LIBFUZZER_PATH=$libfuzzer_path
IGNORE_TESTS=$ignore_tests
ANTBIN=$antbin
BDJ_TYPE=$bdj_type
JDK_HOME=$JDK_HOME
JAVA_ARCH=$java_arch
EOF

get_version(){
    lcname=lib${1}
    name=$(toupper $lcname)
    file=$source_path/external/FFmpeg/$lcname/version.h
    eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
    enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> $TMPMAK
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> $TMPMAK
    eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> $TMPMAK
}

map 'get_version $v' $LIBRARY_LIST

echo "RUNPREFIX=$runprefix" >> $TMPMAK
echo "SYSROOT=$sysroot" >> $TMPMAK

enabled audio_alsa        && append CCONFIG "using_alsa"
enabled audio_jack        && append CCONFIG "using_jack"
enabled audio_oss         && append CCONFIG "using_oss"
enabled audio_pulse       && append CCONFIG "using_pulse"
enabled audio_pulseoutput && append CCONFIG "using_pulseoutput"

if enabled darwin_da; then
  append CCONFIG "darwin_da"
  echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> $TMPMAK
fi

if enabled freetype2; then
    echo "FREETYPE_CFLAGS=$($pkg_config --cflags $pkg_config_flags freetype2)" >> $TMPMAK
    echo "FREETYPE_LIBS=$($pkg_config --libs $pkg_config_flags freetype2)" >> $TMPMAK
fi

if enabled drm; then
    echo "LIBDRM_CFLAGS=$($pkg_config --cflags $pkg_config_flags libdrm)" >> $TMPMAK
fi

if test $target_os = darwin; then
  # Qt, by default builds .app bundles everywhere. Prevent this.
  enabled mac_bundle || echo "CONFIG-=app_bundle" >> $TMPMAK
fi

cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */
#ifndef MYTHTV_CONFIG_H
#define MYTHTV_CONFIG_H
#define QT_MIN_VERSION_STR "$QT_MIN_VERSION_STR"
#define QT_MIN_VERSION_HEX $QT_MIN_VERSION_HEX
#define QT_MIN_VERSION $QT_MIN_VERSION
#define av_restrict $_restrict
#define EXTERN_PREFIX "${extern_prefix}"
#define EXTERN_ASM ${extern_prefix}
#define BUILDSUF "$build_suffix"
#define SLIBSUF "$SLIBSUF"
#define HAVE_MMX2 HAVE_MMXEXT
#define SWS_MAX_FILTER_SIZE $sws_max_filter_size
#define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
#define SIZEOF_INT $_sizeof_int
#define SIZEOF_LONG $_sizeof_long
#define JDK_HOME "$JDK_HOME"
#define JAVA_ARCH "$java_arch"
#define IMAGE_ALIGN $image_align
#define PYTHON_EXE "${python}"
EOF

# Code only checks whether HAVE_BDJ_J2ME is defined, not what value
# it has been defined as so we mustn't define it if we don't have it.
enabled bdj_j2me && echo "#define HAVE_BDJ_J2ME 1" >>$TMPH

test -n "$assert_level" &&
    echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

test -n "$malloc_prefix" &&
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

if enabled mac_corevideo; then
  append CCONFIG "using_corevideo"
fi

if enabled cygwin ; then
  echo "#ifndef llrint" >> $TMPH
  echo "#define llrint llrint  // make sure not to define twice" >> $TMPH
  echo "static inline long long int llrint (double x)" >> $TMPH
  echo "{" >> $TMPH
  echo "    long long int llrintres;" >> $TMPH
  echo "    asm" >> $TMPH
  echo "    (\"fistpll %0\"" >> $TMPH
  echo "    : \"=m\" (llrintres) : \"t\" (x) : \"st\");" >> $TMPH
  echo "    return llrintres;" >> $TMPH
  echo "}" >> $TMPH
  echo "#endif" >> $TMPH
fi

enabled getenv || echo "#define getenv(x) NULL" >> $TMPH


mkdir -p doc
mkdir -p tests
mkdir -p tests/api
echo "@c auto-generated by configure - do not modify! " > doc/config.texi

print_config ARCH_   "$config_files" $ARCH_LIST
print_config HAVE_   "$config_files" $HAVE_LIST
print_config HAVE_   "$config_files" $MYTHTV_HAVE_LIST
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
                                     $CONFIG_EXTRA      \
                                     $ALL_COMPONENTS    \
                                     $MYTHTV_LIST       \
                                     $MYTHTV_CONFIG_LIST \


for opt in $MYTHTV_CONFIG_LIST $USING_LIST; do
    enabled $opt && append CCONFIG "using_$opt"
done

enabled threads && append CCONFIG "using_ffmpeg_threads"

if disabled frontend; then
    echo
    echo "WARNING: --disable-frontend is only intended to aid porting."
    echo "WARNING: THIS WILL BREAK THINGS. You are on your own now."
fi

if disabled backend; then
    echo
    echo "WARNING: --disable-backend is only intended to aid porting."
    echo "WARNING: You are on your own now."
fi

if enabled proc_opt; then
    echo
    echo "WARNING: When using --enable-proc-opt you must include the "
    echo "         output of ./configure along with any bug report."
fi

if enabled cpu_override; then
    echo
    echo "WARNING: When using --arch=X or --cpu=X you must include the "
    echo "         output of ./configure along with any bug report."
fi

echo # add a newline after any warnings.

if enabled mmx; then
  CONFIG_DEFINES="$CONFIG_DEFINES MMX"
  if enabled x86_32 ; then
    CONFIG_DEFINES="$CONFIG_DEFINES i386"
  fi
fi

if enabled firewire; then
  if test $target_os = darwin; then
      echo "CONFIG_MAC_AVC=$mac_avc" >> $TMPMAK
  else
      echo "CONFIG_FIREWIRE_LIBS=-lraw1394 -liec61883 -lavc1394 -lrom1394" >> $TMPMAK
  fi
fi

if enabled mheg; then
    append CCONFIG "using_mheg"
fi

if enabled libass; then
    append CCONFIG "using_libass"
fi

if enabled appleremote; then
  append CONFIG_DEFINES "USING_APPLEREMOTE"
fi

if enabled dvb && non_standard_header $dvb_path; then
  append CONFIG_INCLUDEPATH "$dvb_path"
fi

if enabled libcec; then
  append CONFIG_DEFINES "using_libcec"
  if non_standard_header $libcec_path; then
    append CONFIG_INCLUDEPATH "$libcec_path"
  fi
fi

if enabled libxml2; then
  if [ -d $libxml2_path ] ; then
    if non_standard_header $libxml2_path; then
      append CONFIG_INCLUDEPATH "$libxml2_path"
    fi
    append CCONFIG "using_libxml2"
  fi
fi

if enabled libmp3lame; then
  append CCONFIG "using_libmp3lame"
fi

if enabled taglib; then
    echo "CONFIG_TAGLIB_INCLUDES=$taglib_include" >> $TMPMAK
    echo "CONFIG_TAGLIB_LIBS=$taglib_libs" >> $TMPMAK
fi

if enabled x11; then
  if [ -d $x11_path ] ; then
    append CONFIG_INCLUDEPATH "$x11_path"
  fi
fi

if ! enabled darwin && enabled opengl; then
  echo "CONFIG_OPENGL_LIBS=$gl_lib $glu_lib" >> $TMPMAK
fi

if test x"$PERL_CONFIG_OPTS" != x"" ; then
  echo "PERL_CONFIG_OPTS=$PERL_CONFIG_OPTS" >> $TMPMAK
fi

if test x"$CCONFIG" != x"" ; then
  echo "CCONFIG=$CCONFIG" >> $TMPMAK
  echo "#define MYTH_BUILD_CONFIG \"$CCONFIG\"" >>$TMPH
fi

if test x"$CONFIG_DEFINES" != x"" ; then
  echo "CONFIG_DEFINES=$CONFIG_DEFINES" >> $TMPMAK
fi

if test x"$CONFIG_INCLUDEPATH" != x"" ; then
  echo "CONFIG_INCLUDEPATH=$CONFIG_INCLUDEPATH" >> $TMPMAK
fi

echo "#endif /* MYTHTV_CONFIG_H */" >> $TMPH

enabled hdhomerun && cat >> $TMPMAK <<EOF
HDHOMERUN_PREFIX=$HDHOMERUN_PREFIX
HDHOMERUN_V2=$HDHOMERUN_V2
HDHOMERUN_DEVICE_SELECTOR_LOAD_FROM_STR = $HDHOMERUN_DEVICE_SELECTOR_LOAD_FROM_STR
EOF

#echo "endif # FFMPEG_CONFIG_MAK" >> $TMPMAK

# Should be done on all platforms, but for the time being limit it to mac only
if enabled darwin; then
  echo "QMAKE_LFLAGS+=\"$LDFLAGS\"" >> $TMPMAK
fi

cp_if_changed $TMPH $MYTH_CONFIG_H

if ! test -L config.h ; then
  ${ln_s} $MYTH_CONFIG_H config.h
fi

if [ ! -e config.h ] ; then
  ${ln_s} $MYTH_CONFIG_H config.h
fi

cat $TMPMAK | sed -e 's/^!/#/' > $TMPPRO

cp_if_changed $TMPPRO $MYTH_CONFIG_MAK

if ! test -L config.mak ; then
  ${ln_s} $MYTH_CONFIG_MAK config.mak
fi

if [ ! -e config.mak ] ; then
  ${ln_s} $MYTH_CONFIG_MAK config.mak
fi

# delete old myth config files in old location
if [ -e libs/libmyth/mythconfig.mak ] ; then
    rm -f libs/libmyth/mythconfig.mak
fi
if [ -e libs/libmyth/mythconfig.h ] ; then
    rm -f libs/libmyth/mythconfig.h
fi

if ! enabled libbluray_external; then
    echo "Configuring libmythbluray..."
    (cd external/libmythbluray ; \
           ${qmakeconf} -o Makefile)
fi
echo "Configuring libmythdvdnav..."
(cd external/libmythdvdnav ; \
       ${qmakeconf} -o Makefile)
echo "Configuring libudfread..."
(cd external/libudfread ; \
       ${qmakeconf} -o Makefile)
echo "Configuring libmythsoundtouch..."
(cd external/libmythsoundtouch ;
       ${qmakeconf} -o Makefile)

test -n "$WARNINGS" && printf "\n$WARNINGS" || exit 0