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configure.in
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configure.in
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dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; -*-
dnl
dnl ***** BEGIN LICENSE BLOCK *****
dnl Version: MPL 1.1/GPL 2.0/LGPL 2.1
dnl
dnl The contents of this file are subject to the Mozilla Public License Version
dnl 1.1 (the "License"); you may not use this file except in compliance with
dnl the License. You may obtain a copy of the License at
dnl http://www.mozilla.org/MPL/
dnl
dnl Software distributed under the License is distributed on an "AS IS" basis,
dnl WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
dnl for the specific language governing rights and limitations under the
dnl License.
dnl
dnl The Original Code is the Netscape Portable Runtime (NSPR).
dnl
dnl The Initial Developer of the Original Code is
dnl Netscape Communications Corporation.
dnl Portions created by the Initial Developer are Copyright (C) 1998
dnl the Initial Developer. All Rights Reserved.
dnl
dnl Contributor(s):
dnl Christopher Seawood <cls@seawood.org>
dnl Howard Chu <hyc@symas.com>
dnl Mark Mentovai <mark@moxienet.com>
dnl
dnl Alternatively, the contents of this file may be used under the terms of
dnl either the GNU General Public License Version 2 or later (the "GPL"), or
dnl the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
dnl in which case the provisions of the GPL or the LGPL are applicable instead
dnl of those above. If you wish to allow use of your version of this file only
dnl under the terms of either the GPL or the LGPL, and not to allow others to
dnl use your version of this file under the terms of the MPL, indicate your
dnl decision by deleting the provisions above and replace them with the notice
dnl and other provisions required by the GPL or the LGPL. If you do not delete
dnl the provisions above, a recipient may use your version of this file under
dnl the terms of any one of the MPL, the GPL or the LGPL.
dnl
dnl ***** END LICENSE BLOCK *****
AC_PREREQ(2.12)
AC_INIT(config/libc_r.h)
AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
AC_CANONICAL_SYSTEM
dnl ========================================================
dnl = Defaults
dnl ========================================================
MOD_MAJOR_VERSION=4
MOD_MINOR_VERSION=8
MOD_PATCH_VERSION=9
NSPR_MODNAME=nspr20
_HAVE_PTHREADS=
USE_PTHREADS=
USE_USER_PTHREADS=
USE_NSPR_THREADS=
USE_N32=
USE_64=
USE_CPLUS=
USE_IPV6=
USE_MDUPDATE=
_MACOSX_DEPLOYMENT_TARGET=
_OPTIMIZE_FLAGS=-O
_DEBUG_FLAGS=-g
MOZ_DEBUG=1
MOZ_OPTIMIZE=
OBJDIR='$(OBJDIR_NAME)'
OBJDIR_NAME=.
OBJDIR_SUFFIX=OBJ
NSINSTALL='$(MOD_DEPTH)/config/$(OBJDIR_NAME)/nsinstall'
NOSUCHFILE=/no-such-file
LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)'
LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)'
CYGWIN_WRAPPER=
MACOS_SDK_DIR=
NEXT_ROOT=
MT=
MOZ_OS2_HIGH_MEMORY=1
MOZ_THUMB2=
PROFILE_GEN_CFLAGS=
PROFILE_GEN_LDFLAGS=
PROFILE_USE_CFLAGS=
PROFILE_USE_LDFLAGS=
dnl Link in libraries necessary to resolve all symbols for shared libs
RESOLVE_LINK_SYMBOLS=
dnl ========================================================
dnl =
dnl = Dont change the following lines. Doing so breaks:
dnl =
dnl = CFLAGS="-foo" ./configure
dnl =
dnl ========================================================
CFLAGS="${CFLAGS=}"
CXXFLAGS="${CXXFLAGS=}"
LDFLAGS="${LDFLAGS=}"
DLLFLAGS="${DLLFLAGS=}"
HOST_CFLAGS="${HOST_CFLAGS=}"
HOST_LDFLAGS="${HOST_LDFLAGS=}"
case "$target" in
*-cygwin*|*-mingw*)
# Check to see if we are really running in a msvc environemnt
_WIN32_MSVC=
AC_CHECK_PROGS(CC, cl)
if test "$CC" = "cl"; then
echo 'main() { return 0; }' > dummy.c
${CC} -o dummy dummy.c >/dev/null 2>&1
if test $? = 0; then
_WIN32_MSVC=1
CXX=$CC
else
AC_MSG_WARN([$(CC) test failed. Using normal feature tests])
fi
rm -f dummy dummy.o dummy.obj dummy.exe dummy.c
fi
;;
*-msvc*)
_WIN32_MSVC=1
;;
*-mks*)
_WIN32_MSVC=1
;;
esac
if test -n "$_WIN32_MSVC"; then
SKIP_PATH_CHECKS=1
SKIP_COMPILER_CHECKS=1
SKIP_LIBRARY_CHECKS=1
fi
dnl ========================================================
dnl = Android uses a very custom (hacky) toolchain; we need to do this
dnl = here, so that the compiler checks can succeed
dnl ========================================================
AC_ARG_WITH(android-ndk,
[ --with-android-ndk=DIR
location where the Android NDK can be found],
android_ndk=$withval)
AC_ARG_WITH(android-toolchain,
[ --with-android-toolchain=DIR
location of the android toolchain, default NDK/build/prebuilt/HOST/arm-eabi-4.4.0],
android_toolchain=$withval)
AC_ARG_WITH(android-platform,
[ --with-android-platform=DIR
location of platform dir, default NDK/build/platforms/android-5/arch-arm],
android_platform=$withval)
if test "$target" = "arm-android-eabi" ; then
if test -z "$android_ndk" ; then
AC_MSG_ERROR([You must specify --with-android-ndk=/path/to/ndk when targeting Android.])
fi
if test -z "$android_toolchain" ; then
android_toolchain="$android_ndk"/build/prebuilt/`uname -s | tr "[[:upper:]]" "[[:lower:]]"`-x86/arm-eabi-4.4.0
fi
if test -z "$android_platform" ; then
android_platform="$android_ndk"/build/platforms/android-5/arch-arm
fi
dnl set up compilers
AS="$android_toolchain"/bin/arm-eabi-as
CC="$android_toolchain"/bin/arm-eabi-gcc
CXX="$android_toolchain"/bin/arm-eabi-g++
CPP="$android_toolchain"/bin/arm-eabi-cpp
LD="$android_toolchain"/bin/arm-eabi-ld
AR="$android_toolchain"/bin/arm-eabi-ar
RANLIB="$android_toolchain"/bin/arm-eabi-ranlib
STRIP="$android_toolchain"/bin/arm-eabi-strip
CPPFLAGS="-I$android_platform/usr/include $CPPFLAGS"
CFLAGS="-mandroid -I$android_platform/usr/include -msoft-float -fno-short-enums -fno-exceptions $CFLAGS"
CXXFLAGS="-mandroid -I$android_platform/usr/include -msoft-float -fpic -fno-short-enums -fno-exceptions $CXXFLAGS"
LDFLAGS="-mandroid -L$android_platform/usr/lib -Wl,-rpath-link=$android_platform/usr/lib --sysroot=$android_platform $LDFLAGS"
dnl prevent cross compile section from using these flags as host flags
if test -z "$HOST_CPPFLAGS" ; then
HOST_CPPFLAGS=" "
fi
if test -z "$HOST_CFLAGS" ; then
HOST_CFLAGS=" "
fi
if test -z "$HOST_CXXFLAGS" ; then
HOST_CXXFLAGS=" "
fi
if test -z "$HOST_LDFLAGS" ; then
HOST_LDFLAGS=" "
fi
WRAP_MALLOC_CFLAGS="-Wl,--wrap=dlopen -Wl,--wrap=dlclose -Wl,--wrap=dlerror -Wl,--wrap=dlsym -Wl,--wrap=dladdr"
AC_DEFINE(ANDROID)
fi
dnl ========================================================
dnl =
dnl = Check options that may affect the compiler
dnl =
dnl ========================================================
dist_prefix='${MOD_DEPTH}/dist'
dist_bindir='${dist_prefix}/bin'
dist_includedir='${dist_prefix}/include/nspr'
dist_libdir='${dist_prefix}/lib'
dnl If the --includedir option was not specified, add '/nspr' to autoconf's
dnl default value of includedir.
if test "${includedir}" = '${prefix}/include'; then
includedir='${prefix}/include/nspr'
fi
AC_ARG_WITH(dist-prefix,
[ --with-dist-prefix=DIST_PREFIX
place build files in DIST_PREFIX [dist]],
dist_prefix=$withval)
AC_ARG_WITH(dist-bindir,
[ --with-dist-bindir=DIR build execuatables in DIR [DIST_PREFIX/bin]],
dist_bindir=$withval)
AC_ARG_WITH(dist-includedir,
[ --with-dist-includedir=DIR
build include files in DIR [DIST_PREFIX/include/nspr]],
dist_includedir=$withval)
AC_ARG_WITH(dist-libdir,
[ --with-dist-libdir=DIR build library files in DIR [DIST_PREFIX/lib]],
dist_libdir=$withval)
AC_SUBST(dist_prefix)
AC_SUBST(dist_bindir)
AC_SUBST(dist_includedir)
AC_SUBST(dist_libdir)
dnl Check if NSPR is being compiled for Mozilla
dnl Let --with-arg override environment setting
dnl
AC_ARG_WITH(mozilla,
[ --with-mozilla Compile NSPR with Mozilla support],
[ if test "$withval" = "yes"; then
AC_DEFINE(MOZILLA_CLIENT)
MOZILLA_CLIENT=1
else
MOZILLA_CLIENT=
fi],
[ if test -n "$MOZILLA_CLIENT"; then
AC_DEFINE(MOZILLA_CLIENT)
fi])
AC_ARG_ENABLE(optimize,
[ --enable-optimize[=OPT] Enable code optimizations (ie. -O2) ],
[ if test "$enableval" != "no"; then
MOZ_OPTIMIZE=1
if test -n "$enableval" -a "$enableval" != "yes"; then
_OPTIMIZE_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
_SAVE_OPTIMIZE_FLAGS=$_OPTIMIZE_FLAGS
fi
else
MOZ_OPTIMIZE=
fi ])
AC_ARG_ENABLE(debug,
[ --enable-debug[=DBG] Enable debugging (using compiler flags DBG)],
[ if test "$enableval" != "no"; then
MOZ_DEBUG=1
MOZ_DEBUG_SYMBOLS=1
if test -n "$enableval" -a "$enableval" != "yes"; then
_DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
_SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
fi
else
MOZ_DEBUG=
fi ],
MOZ_DEBUG_SYMBOLS=1)
AC_ARG_ENABLE(debug-symbols,
[ --enable-debug-symbols[=DBG] Enable debugging symbols
(using compiler flags DBG)],
[ if test "$enableval" != "no"; then
MOZ_DEBUG_SYMBOLS=1
if test -n "$enableval" -a "$enableval" != "yes"; then
if test -z "$_SAVE_DEBUG_FLAGS"; then
_DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
_SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
else
AC_MSG_ERROR([--enable-debug-symbols flags cannot be used with --enable-debug flags])
fi
fi
else
MOZ_DEBUG_SYMBOLS=
fi ])
AC_ARG_ENABLE(win32-target,
[ --enable-win32-target=\$t
Specify win32 flavor. (WIN95 or WINNT)],
OS_TARGET=`echo $enableval | tr a-z A-Z`)
AC_ARG_ENABLE(symbian-target,
[ --enable-symbian-target=\$t
Specify symbian flavor. (WINSCW or GCCE)],
OS_TARGET=`echo $enableval | tr a-z A-Z`)
AC_ARG_ENABLE(debug-rtl,
[ --enable-debug-rtl Use the MSVC debug runtime library],
[ if test "$enableval" = "yes"; then
USE_DEBUG_RTL=1
fi ])
AC_ARG_ENABLE(n32,
[ --enable-n32 Enable n32 ABI support (IRIX only)],
[ if test "$enableval" = "yes"; then
USE_N32=1
else if test "$enableval" = "no"; then
USE_N32=
fi
fi ])
AC_ARG_ENABLE(64bit,
[ --enable-64bit Enable 64-bit support (on certain platforms)],
[ if test "$enableval" = "yes"; then
USE_64=1
fi ])
AC_ARG_ENABLE(mdupdate,
[ --enable-mdupdate Enable use of certain compilers' mdupdate feature],
[ if test "$enableval" = "yes"; then
USE_MDUPDATE=1
fi ])
AC_ARG_ENABLE(cplus,
[ --enable-cplus Enable some c++ api routines],
[ if test "$enableval" = "yes"; then
USE_CPLUS=1
fi])
AC_ARG_WITH(arm-kuser,
[ --with-arm-kuser Use kuser helpers (Linux/ARM only)
(Requires kernel 2.6.13 or later)],
[ if test "$withval" = "yes"; then
AC_DEFINE(_PR_ARM_KUSER)
fi ])
dnl ========================================================
dnl = Mac OS X SDK support
dnl ========================================================
AC_ARG_WITH(macos-sdk,
[ --with-macos-sdk=dir Location of platform SDK to use (Mac OS X only)],
MACOS_SDK_DIR=$withval)
AC_ARG_ENABLE(macos-target,
[ --enable-macos-target=VER
Set the minimum MacOS version needed at runtime
[10.2 for ppc, 10.4 for x86]],
[_MACOSX_DEPLOYMENT_TARGET=$enableval])
dnl ========================================================
dnl =
dnl = Set the threading model
dnl =
dnl ========================================================
case "$target" in
*-aix*)
case "${target_os}" in
aix3.2*)
USE_NSPR_THREADS=1
;;
*)
USE_PTHREADS=1
;;
esac
;;
esac
dnl ========================================================
dnl =
dnl = Set the default C compiler
dnl =
dnl ========================================================
if test -z "$CC"; then
case "$target" in
*-aix*)
if test -z "$USE_NSPR_THREADS"; then
CC=xlc_r
else
CC=xlc
fi
;;
*-hpux*)
CC=cc
;;
*-irix*)
CC=cc
;;
*-osf*)
CC=cc
;;
*-solaris*)
CC=cc
;;
esac
fi
dnl ========================================================
dnl =
dnl = Set the default C++ compiler
dnl =
dnl ========================================================
if test -z "$CXX"; then
case "$target" in
*-aix*)
if test -z "$USE_NSPR_THREADS"; then
CXX=xlC_r
else
CXX=xlC
fi
;;
*-hpux*)
case "${target_os}" in
hpux10.30)
CXX=aCC
;;
hpux11.*)
CXX=aCC
;;
*)
CXX=CC
;;
esac
;;
*-irix*)
CXX=CC
;;
*-osf*)
CXX=cxx
;;
*-solaris*)
CXX=CC
;;
esac
fi
if test -z "$SKIP_PATH_CHECKS"; then
AC_PATH_PROG(WHOAMI, $WHOAMI whoami, echo not_whoami)
fi
if test -n "$MOZ_DEBUG"; then
AC_DEFINE(DEBUG)
DEFINES="$DEFINES -UNDEBUG"
case "${target_os}" in
beos*)
DEFINES="$DEFINES -DDEBUG_${USER}"
;;
msvc*|mks*|cygwin*|mingw*|wince*|winmo*|os2*)
DEFINES="$DEFINES -DDEBUG_`echo ${USERNAME} | sed -e 's| |_|g'`"
;;
*)
DEFINES="$DEFINES -DDEBUG_`$WHOAMI`"
;;
esac
else
AC_DEFINE(NDEBUG)
DEFINES="$DEFINES -UDEBUG"
fi
if test -z "$SKIP_COMPILER_CHECKS"; then
dnl ========================================================
dnl Checks for compilers.
dnl ========================================================
if test "$target" != "$host"; then
echo "cross compiling from $host to $target"
cross_compiling=yes
_SAVE_CC="$CC"
_SAVE_CFLAGS="$CFLAGS"
_SAVE_LDFLAGS="$LDFLAGS"
AC_MSG_CHECKING([for $host compiler])
AC_CHECK_PROGS(HOST_CC, $HOST_CC gcc cc /usr/ucb/cc, "")
if test -z "$HOST_CC"; then
AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
AC_MSG_RESULT([$HOST_CC])
if test -z "$HOST_CFLAGS"; then
HOST_CFLAGS="$CFLAGS"
fi
if test -z "$HOST_LDFLAGS"; then
HOST_LDFLAGS="$LDFLAGS"
fi
CC="$HOST_CC"
CFLAGS="$HOST_CFLAGS"
LDFLAGS="$HOST_LDFLAGS"
AC_MSG_CHECKING([whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
AC_TRY_COMPILE([], [return(0);],
[ac_cv_prog_host_cc_works=1 AC_MSG_RESULT([yes])],
AC_MSG_ERROR([installation or configuration problem: $host compiler $HOST_CC cannot create executables.]) )
CC=$_SAVE_CC
CFLAGS=$_SAVE_CFLAGS
LDFLAGS=$_SAVE_LDFLAGS
case "$build:$target" in
powerpc-apple-darwin8*:i?86-apple-darwin*)
dnl The Darwin cross compiler doesn't necessarily point itself at a
dnl root that has libraries for the proper architecture, it defaults
dnl to the system root. The libraries in the system root on current
dnl versions of PPC OS X 10.4 aren't fat, so these target compiler
dnl checks will fail. Fake a working SDK in that case.
_SAVE_CFLAGS=$CFLAGS
_SAVE_CXXFLAGS=$CXXLAGS
CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CFLAGS"
CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CXXFLAGS"
;;
esac
AC_CHECK_PROGS(CC, $CC "${target_alias}-gcc" "${target}-gcc", echo)
unset ac_cv_prog_CC
AC_PROG_CC
if test -n "$USE_CPLUS"; then
AC_CHECK_PROGS(CXX, $CXX "${target_alias}-g++" "${target}-g++", echo)
unset ac_cv_prog_CXX
AC_PROG_CXX
fi
case "$build:$target" in
powerpc-apple-darwin8*:i?86-apple-darwin*)
dnl Revert the changes made above. From this point on, the target
dnl compiler will never be used without applying the SDK to CFLAGS
dnl (see --with-macos-sdk below).
CFLAGS=$_SAVE_CFLAGS
CXXFLAGS=$_SAVE_CXXFLAGS
;;
esac
AC_CHECK_PROGS(RANLIB, $RANLIB "${target_alias}-ranlib" "${target}-ranlib", echo)
AC_CHECK_PROGS(AR, $AR "${target_alias}-ar" "${target}-ar", echo)
AC_CHECK_PROGS(AS, $AS "${target_alias}-as" "${target}-as", echo)
AC_CHECK_PROGS(LD, $LD "${target_alias}-ld" "${target}-ld", echo)
AC_CHECK_PROGS(STRIP, $STRIP "${target_alias}-strip" "${target}-strip", echo)
AC_CHECK_PROGS(WINDRES, $WINDRES "${target_alias}-windres" "${target}-windres", echo)
else
AC_PROG_CC
if test -n "$USE_CPLUS"; then
if test "$CC" = "cl" -a -z "$CXX"; then
CXX=$CC
else
AC_PROG_CXX
fi
fi
AC_PROG_CPP
AC_PROG_RANLIB
AC_PATH_PROGS(AS, as, $CC)
AC_PATH_PROGS(AR, ar, echo not_ar)
AC_PATH_PROGS(LD, ld link, echo not_ld)
AC_PATH_PROGS(STRIP, strip, echo not_strip)
AC_PATH_PROGS(WINDRES, windres, echo not_windres)
if test -z "$HOST_CC"; then
HOST_CC="$CC"
fi
if test -z "$HOST_CFLAGS"; then
HOST_CFLAGS="$CFLAGS"
fi
fi
if test "$GCC" = "yes"; then
GNU_CC=1
fi
if test "$GXX" = "yes"; then
GNU_CXX=1
fi
if test "`echo | $AS -v 2>&1 | grep -c GNU`" != "0"; then
GNU_AS=1
fi
rm -f a.out
case "$build:$target" in
i?86-apple-darwin*:powerpc-apple-darwin*)
dnl cross_compiling will have erroneously been set to "no" in this
dnl case, because the x86 build host is able to run ppc code in a
dnl translated environment, making a cross compiler appear native.
cross_compiling=yes
;;
esac
if test "$cross_compiling" = "yes"; then
CROSS_COMPILE=1
else
CROSS_COMPILE=
fi
dnl ========================================================
dnl Check for gcc -pipe support
dnl ========================================================
AC_MSG_CHECKING([for gcc -pipe support])
if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
echo '#include <stdio.h>' > dummy-hello.c
echo 'int main() { printf("Hello World\n"); return 0; }' >> dummy-hello.c
${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
cat dummy-hello.s | ${AS} -o dummy-hello.S - 2>&5
if test $? = 0; then
_res_as_stdin="yes"
else
_res_as_stdin="no"
fi
if test "$_res_as_stdin" = "yes"; then
_SAVE_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -pipe"
AC_TRY_COMPILE( [ #include <stdio.h> ],
[printf("Hello World\n");],
[_res_gcc_pipe="yes"],
[_res_gcc_pipe="no"] )
CFLAGS=$_SAVE_CFLAGS
fi
if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
_res="yes";
CFLAGS="$CFLAGS -pipe"
CXXFLAGS="$CXXFLAGS -pipe"
else
_res="no"
fi
rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
AC_MSG_RESULT([$_res])
else
AC_MSG_RESULT([no])
fi
dnl ========================================================
dnl Profile guided optimization
dnl ========================================================
dnl Test for profiling options
dnl Under gcc 3.4+, use -fprofile-generate/-fprofile-use
_SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fprofile-generate -fprofile-correction"
AC_MSG_CHECKING([whether C compiler supports -fprofile-generate])
AC_TRY_COMPILE([], [return 0;],
[ PROFILE_GEN_CFLAGS="-fprofile-generate"
result="yes" ], result="no")
AC_MSG_RESULT([$result])
if test $result = "yes"; then
PROFILE_GEN_LDFLAGS="-fprofile-generate"
PROFILE_USE_CFLAGS="-fprofile-use -fprofile-correction -Wcoverage-mismatch -freorder-blocks-and-partition"
PROFILE_USE_LDFLAGS="-fprofile-use"
fi
CFLAGS="$_SAVE_CFLAGS"
dnl ===============================================================
dnl Check for .hidden assembler directive and visibility attribute.
dnl Borrowed from glibc configure.in
dnl ===============================================================
if test "$GNU_CC"; then
AC_CACHE_CHECK(for visibility(hidden) attribute,
ac_cv_visibility_hidden,
[cat > conftest.c <<EOF
int foo __attribute__ ((visibility ("hidden"))) = 1;
EOF
ac_cv_visibility_hidden=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo' conftest.s >/dev/null; then
ac_cv_visibility_hidden=yes
fi
fi
rm -f conftest.[cs]
])
if test "$ac_cv_visibility_hidden" = "yes"; then
AC_DEFINE(HAVE_VISIBILITY_HIDDEN_ATTRIBUTE)
AC_CACHE_CHECK(for visibility pragma support,
ac_cv_visibility_pragma,
[cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
int foo_hidden = 1;
#pragma GCC visibility push(default)
int foo_default = 1;
EOF
ac_cv_visibility_pragma=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo_hidden' conftest.s >/dev/null; then
if ! grep '\.hidden.*foo_default' conftest.s > /dev/null; then
ac_cv_visibility_pragma=yes
fi
fi
fi
rm -f conftest.[cs]
])
if test "$ac_cv_visibility_pragma" = "yes"; then
AC_DEFINE(HAVE_VISIBILITY_PRAGMA)
# To work around a build problem on Linux x86-64 (Bugzilla bug
# 293438), we use the -fvisibility=hidden flag. This flag is less
# optimal than #pragma GCC visibility push(hidden) because the flag
# assumes that symbols defined outside the current source file have
# the default visibility. This has the advantage that we don't need
# to wrap system header files, but has the disadvantage that calls
# to hidden symbols defined in other source files cannot be
# optimized by the compiler. The -fvisibility=hidden flag does
# hide and export symbols correctly.
#VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
#WRAP_SYSTEM_INCLUDES=1
VISIBILITY_FLAGS="-fvisibility=hidden"
WRAP_SYSTEM_INCLUDES=
fi
fi
fi # GNU_CC
fi # SKIP_COMPILER_CHECKS
dnl ========================================================
dnl Checks for programs.
dnl ========================================================
if test -z "$SKIP_PATH_CHECKS"; then
AC_PATH_PROGS(PERL, perl5 perl, echo not_perl)
elif test -z "$PERL"; then
PERL=perl
fi
dnl ========================================================
dnl Default platform specific options
dnl ========================================================
OBJ_SUFFIX=o
LIB_SUFFIX=a
DLL_SUFFIX=so
ASM_SUFFIX=s
MKSHLIB='$(LD) $(DSO_LDOPTS) -o $@'
PR_MD_ASFILES=
PR_MD_CSRCS=
PR_MD_ARCH_DIR=unix
AR_FLAGS='cr $@'
AS='$(CC)'
ASFLAGS='$(CFLAGS)'
if test -n "$CROSS_COMPILE"; then
OS_ARCH=`echo $target_os | sed -e 's|/|_|g'`
OS_RELEASE=
OS_TEST="${target_cpu}"
case "${target_os}" in
linux*) OS_ARCH=Linux ;;
solaris*) OS_ARCH=SunOS OS_RELEASE=5 ;;
mingw*) OS_ARCH=WINNT ;;
wince*) OS_ARCH=WINCE ;;
winmo*) OS_ARCH=WINCE ;;
darwin*) OS_ARCH=Darwin ;;
riscos*) OS_ARCH=RISCOS ;;
esac
else
OS_ARCH=`uname -s | sed -e 's|/|_|g'`
OS_RELEASE=`uname -r`
OS_TEST=`uname -m`
fi
if test "$OS_ARCH" = "IRIX64"; then
OS_ARCH=IRIX
fi
if test "$OS_ARCH" = "AIX"; then
OS_RELEASE=`uname -v`.`uname -r`
fi
if test "$OS_ARCH" = "FreeBSD"; then
OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
fi
if test "$OS_ARCH" = "Linux"; then
OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
OS_RELEASE=`echo $OS_RELEASE | awk -F\. '{ print $1 "." $2 }'`
fi
#######################################################################
# Master "Core Components" macros for getting the OS target #
#######################################################################
#
# Note: OS_TARGET should be specified on the command line for gmake.
# When OS_TARGET=WIN95 is specified, then a Windows 95 target is built.
# The difference between the Win95 target and the WinNT target is that
# the WinNT target uses Windows NT specific features not available
# in Windows 95. The Win95 target will run on Windows NT, but (supposedly)
# at lesser performance (the Win95 target uses threads; the WinNT target
# uses fibers).
#
# If OS_TARGET is not specified, it defaults to $(OS_ARCH), i.e., no
# cross-compilation.
#
#
# The following hack allows one to build on a WIN95 machine (as if
# s/he were cross-compiling on a WINNT host for a WIN95 target).
# It also accomodates for MKS's uname.exe. If you never intend
# to do development on a WIN95 machine, you don't need this hack.
#
case "$OS_ARCH" in
WIN95)
OS_ARCH=WINNT
OS_TARGET=WIN95
;;
Windows_95)
OS_ARCH=Windows_NT
OS_TARGET=WIN95
;;
Windows_98)
OS_ARCH=Windows_NT
OS_TARGET=WIN95
;;
CYGWIN_9*|CYGWIN_ME*)
OS_ARCH='CYGWIN_NT-4.0'
OS_TARGET=WIN95
;;
OS_2)
OS_ARCH=OS2
OS_TARGET=OS2
;;
esac
#
# On WIN32, we also define the variable CPU_ARCH.
#
case "$OS_ARCH" in
WINNT)
CPU_ARCH=`uname -p`
if test "$CPU_ARCH" = "I386"; then
CPU_ARCH=x86
fi
;;
Windows_NT)
#
# If uname -s returns "Windows_NT", we assume that we are using
# the uname.exe in MKS toolkit.
#
# The -r option of MKS uname only returns the major version number.
# So we need to use its -v option to get the minor version number.
# Moreover, it doesn't have the -p option, so we need to use uname -m.
#
OS_ARCH=WINNT
OS_MINOR_RELEASE=`uname -v`
if test "$OS_MINOR_RELEASE" = "00"; then
OS_MINOR_RELEASE=0
fi
OS_RELEASE="${OS_RELEASE}.${OS_MINOR_RELEASE}"
CPU_ARCH=`uname -m`
#
# MKS's uname -m returns "586" on a Pentium machine.
#
if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
CPU_ARCH=x86
fi
;;
CYGWIN_NT*|MINGW*_NT*)
#
# If uname -s returns "CYGWIN_NT-4.0", we assume that we are using
# the uname.exe in the Cygwin tools.
# If uname -s returns MINGW32_NT-5.1, we assume that we are using
# the uname.exe in the MSYS tools.
#
OS_RELEASE=`expr $OS_ARCH : '.*NT-\(.*\)'`
OS_ARCH=WINNT
CPU_ARCH=`uname -m`
#
# Cygwin's uname -m returns "i686" on a Pentium Pro machine.
#
if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
CPU_ARCH=x86
fi
;;
esac
if test -n "$MOZILLA_CLIENT" && test "$OS_ARCH" = "WINNT"; then
OS_TARGET=WIN95
if test -n "$MOZ_DEBUG"; then
USE_DEBUG_RTL=1
fi
fi
if test -z "$OS_TARGET"; then
OS_TARGET=$OS_ARCH
fi
if test "$OS_TARGET" = "WIN95"; then
OS_RELEASE="4.0"
fi
OS_CONFIG="${OS_TARGET}${OS_RELEASE}"
dnl ========================================================
dnl Enable high-memory support on OS/2 by default.
dnl ========================================================
AC_ARG_ENABLE(os2-high-mem,
[ --disable-os2-high-mem Disable high-memory support on OS/2],
[ if test "$enableval" = "no"; then
MOZ_OS2_HIGH_MEMORY=
else
MOZ_OS2_HIGH_MEMORY=1
fi ])
dnl ========================================================
dnl = Enable building the Thumb2 instruction set
dnl ========================================================
AC_ARG_ENABLE(thumb2,
[ --enable-thumb2 Enable Thumb-2 instruction set],
[ if test "$enableval" = "yes"; then
MOZ_THUMB2=1,
fi ])
if test -n "$MOZ_THUMB2"; then
case "$target_cpu" in
arm*)
if test "$GNU_CC"; then
CFLAGS="$CFLAGS -march=armv7-a -mthumb"
CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb"
ASFLAGS="$ASFLAGS -march=armv7-a -mthumb"
else
AC_MSG_ERROR([--enable-thumb2 is not supported for non-GNU toolchains])
fi
;;
*)
AC_MSG_ERROR([--enable-thumb2 is not supported for non-ARM CPU architectures])
;;
esac
else
case "$target" in
arm-android-eabi)
if test "$GNU_CC"; then
CFLAGS="$CFLAGS -march=armv5te -mthumb-interwork"
CXXFLAGS="$CXXFLAGS -march=armv5te -mthumb-interwork"
ASFLAGS="$ASFLAGS -march=armv5te -mthumb-interwork"
fi
;;
esac
fi
dnl ========================================================
dnl Override of system specific host options
dnl ========================================================
case "$host" in
*-mingw*)
NSINSTALL=nsinstall
;;
*-cygwin*|*-msvc*|*-mks*|*-wince*|*-winmo*)
NSINSTALL='$(CYGWIN_WRAPPER) nsinstall'
if test `echo "${PATH}" | grep -c \;` = 0; then
CYGWIN_WRAPPER='sh $(topsrcdir)/build/cygwin-wrapper'
fi
;;
*-beos*)
HOST_CFLAGS="$HOST_CFLAGS -DXP_BEOS -DBeOS -DBEOS -D_POSIX_SOURCE"
;;
*os2*)
;;
*)
HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
;;
esac
dnl ========================================================
dnl Override of system specific target options
dnl ========================================================
case "$target" in
*-aix*)
AC_DEFINE(XP_UNIX)
AC_DEFINE(AIX)
AC_DEFINE(SYSV)
DSO_LDOPTS='-brtl -bnortllib -bM:SRE -bnoentry -bexpall -blibpath:/usr/lib:/lib'
AC_CHECK_HEADER(sys/atomic_op.h, AC_DEFINE(AIX_HAVE_ATOMIC_OP_H))
case "${target_os}" in
aix3.2*)
AC_DEFINE(AIX_RENAME_SELECT)
AC_DEFINE(_PR_NO_LARGE_FILES)
AIX_LINK_OPTS='-bnso -berok'
PR_MD_ASFILES=os_AIX.s
;;
aix4.1*)
AC_DEFINE(AIX_TIMERS)
AC_DEFINE(_PR_NO_LARGE_FILES)
AC_DEFINE(AIX4_1)
MKSHLIB=
DSO_LDOPTS=
AIX_LINK_OPTS='-bnso -berok'
LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)_shr'
LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)_shr'