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configure
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configure
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#!/bin/sh
# Try and be like autotools configure, but without autotools
echo "configure args: $*"
exec 3>config.log
# Ensure that we do not inherit these from env
HOOKSET=false
INET=
ARP=
ARPING=
IPV4LL=
INET6=
PRIVSEP=
PRIVSEP_USER=
SECCOMP=
ARC4RANDOM=
CLOSEFROM=
RBTREE=
CONSTTIME_MEMEQUAL=
OPEN_MEMSTREAM=
STRLCPY=
UDEV=
OS=
BUILD=
HOST=
HOSTCC=
TARGET=
INCLUDEDIR=
DEBUG=
FORK=
STATIC=
DEVS=
EMBEDDED=
AUTH=
NTP=
POLL=
SMALL=
SANITIZE=no
STATUSARG=
OPENSSL=
DHCPCD_DEFS=dhcpcd-definitions.conf
for x do
opt=${x%%=*}
var=${x#*=}
case "$opt" in
--os|OS) OS=$var;;
--debug) DEBUG=$var;;
--disable-debug) DEBUG=no;;
--enable-debug) DEBUG=yes;;
--fork) FORK=$var;;
--disable-fork) FORK=no;;
--enable-fork) FORK=yes;;
--disable-static) STATIC=no;;
--enable-static) STATIC=yes;;
--disable-ipv4|--disable-inet) INET=no; ARP=no; ARPING=no; IPV4LL=no;;
--enable-ipv4|--enable-inet) INET=yes;;
--disable-arp) ARP=no; ARPING=no; IPV4LL=no;;
--enable-arp) ARP=yes; INET=yes;;
--disable-arping) ARPING=no;;
--enable-arping) ARPING=yes; ARP=yes; INET=yes;;
--disable-ipv4ll) IPV4LL=no;;
--enable-ipv4ll) IPV4LL=yes; ARP=yes; INET=yes;;
--disable-ipv6|--disable-inet6) INET6=no; DHCP6=no;;
--enable-ipv6|--enable-inet6) INET6=yes;;
--disable-dhcp6) DHCP6=no;;
--enable-dhcp6) DHCP6=yes;;
--disable-embedded) EMBEDDED=no;;
--enable-embedded) EMBEDDED=yes;;
--disable-auth) AUTH=no;;
--enable-auth) AUTH=yes;;
--disable-privsep) PRIVSEP=no;;
--enable-privsep) PRIVSEP=yes;;
--disable-seccomp) SECCOMP=no;;
--enable-seccomp) SECCOMP=yes;;
--disable-ntp) NTP=no;;
--enable-ntp) NTP=yes;;
--privsepuser) PRIVSEP_USER=$var;;
--prefix) PREFIX=$var;prefix=$var;; # prefix is set for autotools compat
--sysconfdir) SYSCONFDIR=$var;;
--bindir|--sbindir) SBINDIR=$var;;
--libexecdir) LIBEXECDIR=$var;;
--statedir|--localstatedir) STATEDIR=$var;;
--dbdir) DBDIR=$var;;
--rundir) RUNDIR=$var;;
--runstatedir) RUNSTATEDIR=$var;;
--mandir) MANDIR=$var;;
--datadir) DATADIR=$var;;
--with-ccopts|CFLAGS) CFLAGS=$var;;
-I|--includedir) INCLUDEDIR="$INCLUDEDIR${INCLUDEDIR:+ }-I$var";;
CC) CC=$var;;
CPPFLAGS) CPPFLAGS=$var;;
PKG_CONFIG) PKG_CONFIG=$var;;
--with-hook) HOOKSCRIPTS="$HOOKSCRIPTS${HOOKSCRIPTS:+ }$var";;
--with-hooks|HOOKSCRIPTS) HOOKSCRIPTS=$var; HOOKSET=true;;
--with-eghook) EGHOOKSCRIPTS="$EGHOOKSCRIPTS${EGHOOKSCRIPTS+ }$var";;
--with-eghooks|EGHOOKSCRIPTS) EGHOOKSCRIPTS=$var; EGHOOKSET=true;;
--with-default-hostname) _DEFAULT_HOSTNAME=$var;;
--build) BUILD=$var;;
--host) HOST=$var; HOSTCC=$var-;;
--target) TARGET=$var;;
--libdir) LIBDIR=$var;;
--without-arc4random) ARC4RANDOM=no;;
--without-strlcpy) STRLCPY=no;;
--without-pidfile_lock) PIDFILE_LOCK=no;;
--without-reallocarrray) REALLOCARRAY=no;;
--without-md5) MD5=no;;
--without-sha2) SHA2=no;;
--without-sha256) SHA2=no;;
--without-hmac) HMAC=no;;
--without-dev) DEV=no;;
--with-udev) DEV=yes; UDEV=yes;;
--without-udev) UDEV=no;;
--with-poll) POLL="$var";;
--with-openssl) OPENSSL=yes;;
--without-openssl) OPENSSL=no;;
--sanitise|--sanitize) SANITIZEADDRESS="yes";;
--serviceexists) SERVICEEXISTS=$var;;
--servicecmd) SERVICECMD=$var;;
--servicestatus) SERVICESTATUS=$var;;
--small) SMALL=yes;;
--statusarg) STATUSARG=$var;;
--infodir) ;; # ignore autotools
--disable-maintainer-mode|--disable-dependency-tracking) ;;
--disable-option-checking|--disable-silent-rules) ;;
-V|--version)
v=$(sed -ne 's/.*VERSION[[:space:]]*"\([^"]*\).*/\1/p' defs.h);
c=$(sed -ne 's/^.*copyright\[\] = "\([^"]*\).*/\1/p' dhcpcd.c);
echo "dhcpcd-$v $c";
exit 0;;
-h|--help) cat <<EOF
\`configure' configures this package to adapt to many kinds of systems.
Usage: configure [OPTION]... [VAR=VALUE]...
To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE. See below for descriptions of some of the useful variables.
Defaults for the options are specified in brackets.
Configuration:
-h, --help display this help and exit
--help=short display options specific to this package
-V, --version display version information and exit
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX [/]
By default, \`make install' will install all the files in \'/sbin',
\`/libexec', etc. You can specify
an installation prefix other than \`/' using \`--prefix',
for instance \`--prefix=$HOME'.
For better control, use the options below.
Fine tuning of the installation directories:
--bindir=DIR user executables [PREFIX/bin]
--sbindir=DIR system admin executables [PREFIX/sbin]
--libexecdir=DIR program executables [PREFIX/libexec]
--dbdir=DIR database [STATEDIR/db/dhcpcd]
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--localstatedir=DIR modifiable single-machine data [/var]
--libdir=DIR object code libraries [PREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--mandir=DIR man documentation [PREFIX/man]
System types:
--build=BUILD configure for building on BUILD [guessed]
--host=HOST build programs to run on HOST [BUILD]
--target=TARGET configure for building compilers for TARGET [HOST]
Optional Features:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
Some influential environment variables:
CC C compiler command
CFLAGS C compiler flags
LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
nonstandard directory <lib dir>
CPPFLAGS C/C++ preprocessor flags, e.g. -I<include dir> if you have
headers in a nonstandard directory <include dir>
CPP C preprocessor
PKG_CONFIG pkg-config executable
Use these variables to override the choices made by \`configure' or to help
it to find libraries and programs with nonstandard names/locations.
EOF
exit 0
;;
*) echo "$0: WARNING: unknown option $opt" >&2;;
esac
done
: ${SED:=sed}
: ${GREP:=grep}
: ${PKG_CONFIG:=pkg-config}
: ${WC:=wc}
: ${FORK:=yes}
_which()
{
x="$(which "$1" 2>/dev/null)"
if [ $? = 0 ] && [ -n "$x" ]; then
echo "$x"
return 0
fi
for x in /sbin/"$1" /usr/sbin/"$1" \
/usr/pkg/sbin/"$1" /usr/local/sbin/"$1"
do
if [ -e "$x" ]; then
echo "$x"
return 0
fi
done
return 1
}
CONFIG_H=config.h
CONFIG_MK=config.mk
if [ -z "$BUILD" ]; then
# autoconf target triplet: cpu-vendor-os
BUILD=$(uname -m)-unknown-$(uname -s | tr '[:upper:]' '[:lower:]')
fi
: ${HOST:=$BUILD}
if [ -z "$OS" ]; then
echo "Deriving operating system from ... $HOST"
# Derive OS from cpu-vendor-[kernel-]os
CPU=${HOST%%-*}
REST=${HOST#*-}
if [ "$CPU" != "$REST" ]; then
VENDOR=${REST%%-*}
REST=${REST#*-}
if [ "$VENDOR" != "$REST" ]; then
# Use kernel if given, otherwise os
OS=${REST%%-*}
else
# 2 tupple
OS=$VENDOR
VENDOR=
fi
fi
# Work with cpu-kernel-os, ie Debian
case "$VENDOR" in
linux*|kfreebsd*) OS=$VENDOR; VENDOR= ;;
esac
case "$REST" in
gnu/kfreebsd*) OS="kfreebsd"; VENDOR= ;;
esac
# Special case
case "$OS" in
dragonfly*)
# This means /usr HAS to be mounted not via dhcpcd
: ${LIBEXECDIR:=${PREFIX:-/usr}/libexec}
;;
gnu*) OS=hurd;; # No HURD support as yet
esac
fi
echo "Configuring dhcpcd for ... $OS"
rm -f $CONFIG_H $CONFIG_MK
echo "# $OS" >$CONFIG_MK
echo "/* $OS */" >$CONFIG_H
echo >>$CONFIG_H
echo "#ifndef CONFIG_H">>$CONFIG_H
echo "#define CONFIG_H">>$CONFIG_H
echo >>$CONFIG_H
: ${SYSCONFDIR:=$PREFIX/etc}
: ${SBINDIR:=$PREFIX/sbin}
: ${LIBDIR:=$PREFIX/lib}
: ${LIBEXECDIR:=$PREFIX/libexec}
: ${STATEDIR:=/var}
: ${DBDIR:=$STATEDIR/db/dhcpcd}
: ${RUNSTATEDIR:=$STATEDIR/run}
: ${RUNDIR:=$RUNSTATEDIR/dhcpcd}
: ${MANDIR:=${PREFIX:-/usr}/share/man}
: ${DATADIR:=${PREFIX:-/usr}/share}
eval SYSCONFDIR="$SYSCONFDIR"
eval LIBDIR="$LIBDIR"
eval LIBEXECDIR="$LIBEXECDIR"
eval STATEDIR="$STATEDIR"
eval DBDIR="$DBDIR"
eval RUNDIR="$RUNDIR"
eval MANDIR="$MANDIR"
eval DATADIR="$DATADIR"
echo "#ifndef SYSCONFDIR" >>$CONFIG_H
for x in SYSCONFDIR SBINDIR LIBDIR LIBEXECDIR DBDIR RUNDIR; do
eval v=\$$x
# Make files look nice for import
l=$((10 - ${#x}))
unset t
[ $l -gt 3 ] && t=" "
echo "$x=$t $v" >>$CONFIG_MK
unset t
[ $l -gt 2 ] && t=" "
echo "#define $x$t \"$v\"" >>$CONFIG_H
done
echo "#endif" >>$CONFIG_H
echo "LIBDIR= $LIBDIR" >>$CONFIG_MK
echo "MANDIR= $MANDIR" >>$CONFIG_MK
echo "DATADIR= $DATADIR" >>$CONFIG_MK
# Always obey CC.
if [ -n "$CC" ]; then
HOSTCC=
else
CC=cc
_COMPILERS="cc clang gcc pcc icc"
fi
# Only look for a cross compiler if --host and --build are not the same
if [ -n "$HOSTCC" ] && [ "$BUILD" != "$HOST" ]; then
for _CC in $_COMPILERS; do
_CC=$(_which "$HOSTCC$_CC")
if [ -x "$_CC" ]; then
CC=$_CC
break
fi
done
fi
if ! type "$CC" >/dev/null 2>&1; then
for _CC in $_COMPILERS; do
_CC=$(_which "$_CC")
if [ -x "$_CC" ]; then
CC=$_CC
break
fi
done
fi
# Set to blank, then append user config
# We do this so our SED call to append to XCC remains portable
if [ -n "$CFLAGS" ]; then
echo "CFLAGS=" >>$CONFIG_MK
echo "CFLAGS+= $CFLAGS" >>$CONFIG_MK
fi
if [ -n "$CPPFLAGS" ]; then
echo "CPPFLAGS=" >>$CONFIG_MK
echo "CPPFLAGS+= $CPPFLAGS" >>$CONFIG_MK
fi
if [ -n "$INCLUDEDIR" ]; then
echo "CPPFLAGS+= $INCLUDEDIR" >>$CONFIG_MK
fi
if [ -n "$LDFLAGS" ]; then
echo "LDFLAGS=" >>$CONFIG_MK
echo "LDFLAGS+= $LDFLAGS" >>$CONFIG_MK
fi
echo "CPPFLAGS+= -DHAVE_CONFIG_H" >>$CONFIG_MK
# NetBSD: Even if we build for $PREFIX, the clueless user might move us to /
LDELF=/libexec/ld.elf_so
if [ -e "$LDELF" ]; then
echo "Linking against $LDELF"
echo "LDFLAGS+= -Wl,-dynamic-linker=$LDELF" >>$CONFIG_MK
echo "LDFLAGS+= -Wl,-rpath=${LIBDIR}" >>$CONFIG_MK
fi
if [ -z "$PREFIX" ] || [ "$PREFIX" = / ]; then
ALLOW_USR_LIBS=false
else
ALLOW_USR_LIBS=true
fi
case "$OS" in
linux*|solaris*|sunos*|kfreebsd*|dragonfly*|freebsd*) ;;
*)
# There might be more than one ...
for LDELFN in /libexec/ld-elf.so.[0-9]*; do
[ -x "$LDELFN" ] && break
done
if ! [ -x "$LDELF" ] || [ -x "$LDELFN" ]; then
if [ -z "$PREFIX" ] || [ "$PREFIX" = "/" ]; then
echo "Forcing a static build for $OS and \$PREFIX of /"
STATIC=yes
ALLOW_USR_LIBS=true
fi
fi
;;
esac
if [ "$STATIC" = yes ]; then
echo "LDFLAGS+= -static" >>$CONFIG_MK
fi
if [ -z "$DEBUG" ] && [ -d .git ]; then
printf "Found git checkout ... "
DEBUG=yes
fi
if [ -n "$DEBUG" ] && [ "$DEBUG" != no ] && [ "$DEBUG" != false ]; then
echo "Adding debugging CFLAGS"
cat <<EOF >>$CONFIG_MK
CFLAGS+= -g -Wall -Wextra -Wundef
CFLAGS+= -Wmissing-prototypes -Wmissing-declarations
CFLAGS+= -Wmissing-format-attribute -Wnested-externs
CFLAGS+= -Winline -Wcast-align -Wcast-qual -Wpointer-arith
CFLAGS+= -Wreturn-type -Wswitch -Wshadow
CFLAGS+= -Wcast-qual -Wwrite-strings
CFLAGS+= -Wformat=2
CFLAGS+= -Wpointer-sign -Wmissing-noreturn
EOF
case "$OS" in
mirbsd*|openbsd*);; # OpenBSD has many redundant decs in system headers
bitrig*|solaris*|sunos*)
echo "CFLAGS+= -Wredundant-decls" >>$CONFIG_MK
;; # Bitrig spouts many conversion errors with htons
# sunos has many as well
*) echo "CFLAGS+= -Wredundant-decls" >>$CONFIG_MK
echo "CFLAGS+= -Wconversion" >>$CONFIG_MK
;;
esac
case "$OS" in
solaris*|sunos*);;
*) echo "CFLAGS+= -Wstrict-overflow" >>$CONFIG_MK;;
esac
# Turn on extra per compiler debugging
case "$CC" in
*gcc*) echo "CFLAGS+= -Wlogical-op" >>$CONFIG_MK;;
esac
if [ "$SANITIZEADDRESS" = yes ]; then
printf "Testing compiler supports address sanitisation ..."
cat <<EOF >_test.c
int main(void) {
return 0;
}
EOF
if $CC -fsanitize=address _test.c -o _test 2>&3; then
echo "yes"
echo "CFLAGS+= -fsanitize=address" >>$CONFIG_MK
echo "CFLAGS+= -fno-omit-frame-pointer" >>$CONFIG_MK
echo "LDFLAGS+= -fsanitize=address" >>$CONFIG_MK
else
echo "no"
fi
rm -rf _test.c _test
fi
else
echo "CPPFLAGS+= -DNDEBUG" >>$CONFIG_MK
fi
if [ -n "$FORK" ] && [ "$FORK" != yes ] && [ "$FORK" != true ]; then
echo "There is no fork"
echo "CPPFLAGS+= -DTHERE_IS_NO_FORK" >>$CONFIG_MK
fi
if [ "$SMALL" = yes ]; then
echo "Building with -DSMALL"
echo "CPPFLAGS+= -DSMALL" >>$CONFIG_MK
DHCPCD_DEFS=dhcpcd-definitions-small.conf
echo "DHCPCD_DEFS= $DHCPCD_DEFS" >>$CONFIG_MK
fi
case "$OS" in
freebsd*|kfreebsd*)
# FreeBSD hide some newer POSIX APIs behind _GNU_SOURCE ...
echo "CPPFLAGS+= -D_GNU_SOURCE" >>$CONFIG_MK
case "$OS" in
kfreebsd*) echo "CPPFLAGS+= -DBSD" >>$CONFIG_MK;;
esac
echo "DHCPCD_SRCS+= if-bsd.c" >>$CONFIG_MK
# Whacky includes needed to buck the trend
case "$OS" in
kfreebsd*) echo "#include <inttypes.h>" >>$CONFIG_H;
esac
echo "#include <net/if.h>" >>$CONFIG_H
echo "#include <net/if_var.h>" >>$CONFIG_H
;;
netbsd*)
# reallocarray(3) is guarded by _OPENBSD_SOURCE
echo "CPPFLAGS+= -D_OPENBSD_SOURCE" >>$CONFIG_MK
echo "DHCPCD_SRCS+= if-bsd.c" >>$CONFIG_MK
;;
linux*)
echo "CPPFLAGS+= -D_GNU_SOURCE" >>$CONFIG_MK
# Large File Support, should be fine for 32-bit systems.
# But if this is the case, why is it not set by default?
echo "CPPFLAGS+= -D_FILE_OFFSET_BITS=64" >>$CONFIG_MK
echo "CPPFLAGS+= -D_LARGEFILE_SOURCE" >>$CONFIG_MK
echo "CPPFLAGS+= -D_LARGEFILE64_SOURCE" >>$CONFIG_MK
echo "DHCPCD_SRCS+= if-linux.c" >>$CONFIG_MK
# for RTM_NEWADDR and friends
echo "#include <asm/types.h> /* fix broken headers */" >>$CONFIG_H
echo "#include <sys/socket.h> /* fix broken headers */" >>$CONFIG_H
echo "#include <linux/rtnetlink.h>" >>$CONFIG_H
# cksum does't support -a and netpgp is rare
echo "CKSUM= sha256sum --tag" >>$CONFIG_MK
echo "PGP= gpg2" >>$CONFIG_MK
;;
qnx*)
echo "CPPFLAGS+= -D__EXT" >>$CONFIG_MK
echo "DHCPCD_SRCS+= if-bsd.c" >>$CONFIG_MK
;;
solaris*|sunos*)
echo "CPPFLAGS+= -D_XPG4_2 -D__EXTENSIONS__ -DBSD_COMP" \
>>$CONFIG_MK
echo "DHCPCD_SRCS+= if-sun.c" >>$CONFIG_MK
echo "LDADD+= -ldlpi -lkstat" >>$CONFIG_MK
;;
*)
echo "DHCPCD_SRCS+= if-bsd.c" >>$CONFIG_MK
;;
esac
if [ -n "${_DEFAULT_HOSTNAME+x}" ]; then
DEFAULT_HOSTNAME="${_DEFAULT_HOSTNAME}"
else
case "$OS" in
linux*) DEFAULT_HOSTNAME="(none)";;
*) DEFAULT_HOSTNAME="";;
esac
fi
echo "DEFAULT_HOSTNAME= $DEFAULT_HOSTNAME" >>$CONFIG_MK
if [ -z "$INET" ] || [ "$INET" = yes ]; then
echo "Enabling INET support"
echo "CPPFLAGS+= -DINET" >>$CONFIG_MK
echo "DHCPCD_SRCS+= dhcp.c ipv4.c bpf.c" >>$CONFIG_MK
if [ -z "$ARP" ] || [ "$ARP" = yes ]; then
echo "Enabling ARP support"
echo "CPPFLAGS+= -DARP" >>$CONFIG_MK
echo "DHCPCD_SRCS+= arp.c" >>$CONFIG_MK
fi
if [ -z "$ARPING" ] || [ "$ARPING" = yes ]; then
echo "Enabling ARPing support"
echo "CPPFLAGS+= -DARPING" >>$CONFIG_MK
fi
if [ -z "$IPV4LL" ] || [ "$IPV4LL" = yes ]; then
echo "Enabling IPv4LL support"
echo "CPPFLAGS+= -DIPV4LL" >>$CONFIG_MK
echo "DHCPCD_SRCS+= ipv4ll.c" >>$CONFIG_MK
fi
fi
if [ -z "$INET6" ] || [ "$INET6" = yes ]; then
echo "Enabling INET6 support"
echo "CPPFLAGS+= -DINET6" >>$CONFIG_MK
echo "DHCPCD_SRCS+= ipv6.c ipv6nd.c" >>$CONFIG_MK
if [ -z "$DHCP6" ] || [ "$DHCP6" = yes ]; then
echo "Enabling DHCPv6 support"
echo "CPPFLAGS+= -DDHCP6" >>$CONFIG_MK
echo "DHCPCD_SRCS+= dhcp6.c" >>$CONFIG_MK
fi
fi
if [ -z "$AUTH" ] || [ "$AUTH" = yes ]; then
echo "Enabling Authentication"
echo "CPPFLAGS+= -DAUTH" >>$CONFIG_MK
echo "SRCS+= auth.c" >>$CONFIG_MK
fi
if [ -z "$PRIVSEP" ]; then
# privilege separation works fine .... except on Solaris
case "$OS" in
solaris*|sunos*) PRIVSEP=no;;
*) PRIVSEP=yes;;
esac
fi
if [ "$PRIVSEP" = yes ]; then
echo "Enabling Privilege Separation"
# Try and work out system user
if [ -z "$PRIVSEP_USER" ]; then
printf "Detecting a suitable user for dhcpcd ... "
for x in _dhcpcd _dhcp dhcpcd; do
home=$(getent passwd $x 2>/dev/null | cut -d: -f6)
if [ -d "$home" ]; then
PRIVSEP_USER="$x"
break
fi
done
fi
if [ -n "$PRIVSEP_USER" ]; then
echo "$PRIVSEP_USER"
else
PRIVSEP_USER=dhcpcd
echo
echo "No suitable user found for Priviledge Separation!"
fi
echo "CPPFLAGS+= -DPRIVSEP" >>$CONFIG_MK
echo "PRIVSEP_USER?= $PRIVSEP_USER" >>$CONFIG_MK
echo "#ifndef PRIVSEP_USER" >>$CONFIG_H
echo "#define PRIVSEP_USER \"$PRIVSEP_USER\"" >>$CONFIG_H
echo "#endif" >>$CONFIG_H
echo "PRIVSEP_SRCS= privsep.c privsep-root.c" >>$CONFIG_MK
echo "PRIVSEP_SRCS+= privsep-control.c privsep-inet.c" >>$CONFIG_MK
if [ -z "$INET" ] || [ "$INET" = yes ]; then
echo "PRIVSEP_SRCS+= privsep-bpf.c" >>$CONFIG_MK
fi
case "$OS" in
linux*)
echo "PRIVSEP_SRCS+= privsep-linux.c" >>$CONFIG_MK
if [ -n "$SECCOMP" ] && [ "$SECCOMP" = no ]; then
echo "#define DISABLE_SECCOMP" >>$CONFIG_H
fi
;;
solaris*|sunos*) echo "PRIVSEP_SRCS+= privsep-sun.c" >>$CONFIG_MK;;
*) echo "PRIVSEP_SRCS+= privsep-bsd.c" >>$CONFIG_MK;;
esac
else
echo "PRIVSEP_SRCS=" >>$CONFIG_MK
fi
echo "Using compiler .. $CC"
# Add CPPFLAGS and CFLAGS to CC for testing features
XCC="$CC `$SED -n -e 's/CPPFLAGS+=*\(.*\)/\1/p' $CONFIG_MK`"
XCC="$XCC `$SED -n -e 's/CFLAGS+=*\(.*\)/\1/p' $CONFIG_MK`"
# When running tests, treat all warnings as errors.
# This avoids the situation where we link to a libc symbol
# without the correct header because it might be hidden behind
# a _*_SOURCE #define guard.
XCC="$XCC -Wall -Werror"
# Now test we can use the compiler with our CFLAGS
cat <<EOF >_test.c
int main(void) {
return 0;
}
EOF
_CC=false
if $XCC _test.c -o _test >/dev/null 2>&3; then
[ -x _test ] && _CC=true
fi
rm -f _test.c _test
if ! $_CC; then
echo $XCC
echo "$CC does not create executables" >&2
exit 1
fi
[ "$CC" != cc ] && echo "CC= $CC" >>$CONFIG_MK
$CC --version | $SED -e '1!d'
if [ "$PRIVSEP" = yes ]; then
printf "Testing for capsicum ... "
cat <<EOF >_capsicum.c
#include <sys/capsicum.h>
int main(void) {
return cap_enter();
}
EOF
if $XCC _capsicum.c -o _capsicum 2>&3; then
echo "yes"
echo "#define HAVE_CAPSICUM" >>$CONFIG_H
else
echo "no"
fi
rm -f _capsicum.c _capsicum
printf "Testing for pledge ... "
cat <<EOF >_pledge.c
#include <unistd.h>
int main(void) {
return pledge("stdio", NULL);
}
EOF
if $XCC _pledge.c -o _pledge 2>&3; then
echo "yes"
echo "#define HAVE_PLEDGE" >>$CONFIG_H
else
echo "no"
fi
rm -f _pledge.c _pledge
fi
# This block needs to be after the compiler test due to embedded quotes.
if [ -z "$EMBEDDED" ] || [ "$EMBEDDED" = yes ]; then
echo "$DHCPCD_DEFS will be embedded in dhcpcd itself"
echo "DHCPCD_SRCS+= dhcpcd-embedded.c" >>$CONFIG_MK
else
echo "$DHCPCD_DEFS will be installed to $LIBEXECDIR"
echo "CPPFLAGS+= -DEMBEDDED_CONFIG=\\\"$LIBEXECDIR/dhcpcd-definitions.conf\\\"" >>$CONFIG_MK
echo "EMBEDDEDINSTALL= _embeddedinstall" >>$CONFIG_MK
fi
if [ "$OS" = linux ]; then
printf "Testing for nl80211 ... "
cat <<EOF >_nl80211.c
#include <linux/nl80211.h>
int main(void) {
return 0;
}
EOF
if $XCC _nl80211.c -o _nl80211 2>&3; then
echo "yes"
echo "#define HAVE_NL80211_H" >>$CONFIG_H
else
echo "no"
echo "DHCPCD_SRCS+= if-linux-wext.c" >>$CONFIG_MK
fi
rm -f _nl80211.c _nl80211
printf "Testing for IN6_ADDR_GEN_MODE_NONE ... "
cat <<EOF >_IN6_ADDR_GEN_MODE_NONE.c
#include <linux/if_link.h>
int main(void) {
int x = IN6_ADDR_GEN_MODE_NONE;
return x;
}
EOF
if $XCC _IN6_ADDR_GEN_MODE_NONE.c -o _IN6_ADDR_GEN_MODE_NONE 2>&3; then
echo "yes"
echo "#define HAVE_IN6_ADDR_GEN_MODE_NONE" >>$CONFIG_H
else
echo "no"
fi
rm -f _IN6_ADDR_GEN_MODE_NONE.c _IN6_ADDR_GEN_MODE_NONE
else
printf "Testing for ifam_pid ... "
cat <<EOF >_ifam_pid.c
#include <net/if.h>
int main(void) {
struct ifa_msghdr ifam = { };
return (int)ifam.ifam_pid;
}
EOF
if $XCC _ifam_pid.c -o _ifam_pid 2>&3; then
echo "yes"
echo "#define HAVE_IFAM_PID" >>$CONFIG_H
else
echo "no"
fi
rm -f _ifam_pid.c _ifam_pid
printf "Testing for ifam_addrflags ... "
cat <<EOF >_ifam_addrflags.c
#include <net/if.h>
int main(void) {
struct ifa_msghdr ifam = { };
return (int)ifam.ifam_addrflags;
}
EOF
if $XCC _ifam_addrflags.c -o _ifam_addrflags 2>&3; then
echo "yes"
echo "#define HAVE_IFAM_ADDRFLAGS" >>$CONFIG_H
else
echo "no"
fi
rm -f _ifam_addrflags.c _ifam_addrflags
fi
abort=false
# We require the libc to support non standard functions, like getifaddrs
printf "Testing for getifaddrs ... "
cat <<EOF >_getifaddrs.c
#include <sys/types.h>
#include <ifaddrs.h>
int main(void) {
struct ifaddrs *ifap;
return getifaddrs(&ifap);
}
EOF
LIBSOCKET=
if $XCC _getifaddrs.c -o _getifaddrs 2>&3; then
echo "yes"
elif $XCC _getifaddrs.c -o _getifaddrs -lsocket 2>&3; then
LIBSOCKET=-lsocket
echo "yes (-lsocket)"
echo "LDADD+= -lsocket" >>$CONFIG_MK
else
echo "no"
echo "libc support for getifaddrs is required - aborting" >&2
abort=true
fi
rm -f _getifaddrs.c _getifaddrs
$abort && exit 1
printf "Testing for ifaddrs.ifa_addrflags ... "
cat <<EOF >_getifaddrs_addrflags.c
#include <sys/types.h>
#include <ifaddrs.h>
int main(void) {
struct ifaddrs *ifap;
getifaddrs(&ifap);
return (int)ifap->ifa_addrflags;
}
EOF
if $XCC _getifaddrs_addrflags.c -o _getifaddrs_addrflags $LIBSOCKET 2>&3; then
echo "yes"
echo "#define HAVE_IFADDRS_ADDRFLAGS" >>$CONFIG_H
else
echo "no"
fi
rm -f _getifaddrs_addrflags.c _getifaddrs_addrflags
printf "Testing for clock_gettime ... "
cat <<EOF >_clock_gettime.c
#include <time.h>
int main(void) {
struct timespec ts;
return clock_gettime(CLOCK_MONOTONIC, &ts);
}
EOF
if $XCC _clock_gettime.c -o _clock_gettime 2>&3; then
echo "yes"
elif $XCC _clock_gettime.c -lrt -o _clock_gettime 2>&3; then
echo "yes (-lrt)"
echo "LDADD+= -lrt" >>$CONFIG_MK
else
echo "no"
echo "libc support for clock_getttime is required - aborting" >&2
abort=true
fi
rm -f _clock_gettime.c _clock_gettime
$abort && exit 1
if [ -z "$CLOSEFROM" ]; then
printf "Testing for closefrom ... "
cat <<EOF >_closefrom.c
#include <unistd.h>
int main(void) {
closefrom(3);
return 0;
}
EOF
if $XCC _closefrom.c -o _closefrom 2>&3; then
CLOSEFROM=yes
else
CLOSEFROM=no
fi
echo "$CLOSEFROM"
fi
rm -f _closefrom.c _closefrom
if [ "$CLOSEFROM" = no ]; then
echo "COMPAT_SRCS+= compat/closefrom.c" >>$CONFIG_MK
echo "#include \"compat/closefrom.h\"" >>$CONFIG_H
fi
printf "Testing ioctl request type ... "
cat <<EOF >_ioctl.c
#include <sys/ioctl.h>
int main(void) {
unsigned long req = 0;
return ioctl(3, req, &req);
}
EOF
if $XCC _ioctl.c -o _ioctl 2>&3; then
IOCTL_REQ="unsigned long"
else
IOCTL_REQ="int"
fi
echo "$IOCTL_REQ"
# Our default is unsigned long
# We can still define it, but it makes the code path slightly bigger
if [ "$IOCTL_REQ" != "unsigned long" ]; then
echo "#define IOCTL_REQUEST_TYPE $IOCTL_REQ" >>$CONFIG_H
fi
rm -f _ioctl.c _ioctl
printf "Testing for inet_ntoa ... "
cat <<EOF >_inet_ntoa.c
#include <netinet/in.h>
#include <arpa/inet.h>
int main(void) {
struct in_addr in = { .s_addr = 0 };
inet_ntoa(in);
return 0;
}
EOF
if $XCC _inet_ntoa.c -o _inet_ntoa 2>&3; then
echo "yes"
elif $XCC _inet_ntoa.c -lnsl -o _inet_ntoa 2>&3; then
echo "yes (-lnsl)"
echo "LDADD+= -lnsl" >>$CONFIG_MK
elif $XCC _inet_ntoa.c -lsocket -o _inet_ntoa 2>&3; then
echo "yes (-lsocket)"
echo "LDADD+= -lsocket" >>$CONFIG_MK
else
echo "no"
echo "libc support for inet_ntoa is required - aborting" >&2
abort=true
fi
rm -f _inet_ntoa.c _inet_ntoa
$abort && exit 1
if [ -z "$ARC4RANDOM" ]; then
printf "Testing for arc4random ... "
cat <<EOF >_arc4random.c
#include <stdlib.h>
int main(void) {
return (int)arc4random();
}
EOF
if $XCC _arc4random.c -o _arc4random 2>&3; then
ARC4RANDOM=yes
else
ARC4RANDOM=no
fi
echo "$ARC4RANDOM"
rm -f _arc4random.c _arc4random
fi
if [ "$ARC4RANDOM" = no ]; then
echo "COMPAT_SRCS+= compat/arc4random.c" >>$CONFIG_MK
echo "#include \"compat/arc4random.h\"" >>$CONFIG_H
fi
if [ -z "$ARC4RANDOM_UNIFORM" ]; then
printf "Testing for arc4random_uniform ... "
cat <<EOF >_arc4random_uniform.c
#include <stdlib.h>
int main(void) {
return (int)arc4random_uniform(100);
}
EOF
if $XCC _arc4random_uniform.c -o _arc4random_uniform 2>&3; then
ARC4RANDOM_UNIFORM=yes
else
ARC4RANDOM_UNIFORM=no
fi
echo "$ARC4RANDOM_UNIFORM"
rm -f _arc4random_uniform.c _arc4random_uniform
fi
if [ "$ARC4RANDOM_UNIFORM" = no ]; then
echo "COMPAT_SRCS+= compat/arc4random_uniform.c" >>$CONFIG_MK
echo "#include \"compat/arc4random_uniform.h\"" >>$CONFIG_H
fi
# Our arc4random compat needs memset_explicit, explicit_bzero or memset_s
if [ -z "$MEMSET_EXPLICIT" ]; then
printf "Testing for memset_explicit ... "
cat <<EOF >_memset_explicit.c
#include <string.h>
int main(void) {
int a;
(void)memset_explicit(&a, 0, sizeof(a));
return 0;
}
EOF
if $XCC _memset_explicit.c -o _memset_explicit 2>&3; then
MEMSET_EXPLICIT=yes
else
MEMSET_EXPLICIT=no
fi
echo "$MEMSET_EXPLICIT"
rm -f _memset_explicit.c _memset_explicit
fi
if [ "$MEMSET_EXPLICIT" = yes ]; then
echo "#define HAVE_MEMSET_EXPLICIT" >>$CONFIG_H
fi
if [ -z "$EXPLICIT_BZERO" ]; then
printf "Testing for explicit_bzero ... "
cat <<EOF >_explicit_bzero.c
#define _BSD_SOURCE // musl, will be added for Linux in config.h
#include <string.h>
int main(void) {
int a;
explicit_bzero(&a, sizeof(a));
return 0;
}
EOF
if $XCC _explicit_bzero.c -o _explicit_bzero 2>&3; then
EXPLICIT_BZERO=yes
else
EXPLICIT_BZERO=no
fi
echo "$EXPLICIT_BZERO"
rm -f _explicit_bzero.c _explicit_bzero
fi
if [ "$EXPLICIT_BZERO" = yes ]; then
echo "#define HAVE_EXPLICIT_BZERO" >>$CONFIG_H
fi
if [ -z "$MEMSET_S" ]; then
printf "Testing for memset_s ... "
cat <<EOF >_memset_s.c
#define __STDC_WANT_LIB_EXT1__ 1
#include <string.h>
int main(void) {
int a;
memset_s(&a, sizeof(a), 0, sizeof(a));
return 0;
}
EOF
if $XCC _memset_s.c -o _memset_s 2>&3; then
MEMSET_S=yes
else
MEMSET_S=no
fi
echo "$MEMSET_S"
rm -f _memset_s.c _memset_s
fi
if [ "$MEMSET_S" = yes ]; then
echo "#define __STDC_WANT_LIB_EXT1__ 1" >>$CONFIG_H
echo "#define HAVE_MEMSET_S" >>$CONFIG_H
fi
if [ -z "$OPEN_MEMSTREAM" ]; then
printf "Testing for open_memstream ... "
cat <<EOF >_open_memstream.c