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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 This Source Code Form is subject to the terms of the Mozilla Public
dnl License, v. 2.0. If a copy of the MPL was not distributed with this
dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
AC_PREREQ(2.61)
AC_INIT
AC_CONFIG_SRCDIR([pr/include/nspr.h])
AC_CONFIG_AUX_DIR(build/autoconf)
AC_CANONICAL_TARGET
dnl ========================================================
dnl = Defaults
dnl ========================================================
MOD_MAJOR_VERSION=4
MOD_MINOR_VERSION=35
MOD_PATCH_VERSION=0
NSPR_MODNAME=nspr20
_HAVE_PTHREADS=
USE_PTHREADS=
USE_USER_PTHREADS=
USE_NSPR_THREADS=
USE_N32=
USE_X32=
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$(MOD_MAJOR_VERSION)'
CYGWIN_WRAPPER=
MACOS_SDK_DIR=
NEXT_ROOT=
MT=
MOZ_OS2_HIGH_MEMORY=1
PROFILE_GEN_CFLAGS=
PROFILE_GEN_LDFLAGS=
PROFILE_USE_CFLAGS=
PROFILE_USE_LDFLAGS=
dnl Link in libraries necessary to resolve all symbols for shared libs
RESOLVE_LINK_SYMBOLS=
dnl ========================================================
dnl =
dnl = Dont change the following lines. Doing so breaks:
dnl =
dnl = CFLAGS="-foo" ./configure
dnl =
dnl ========================================================
CFLAGS="${CFLAGS=}"
CXXFLAGS="${CXXFLAGS=}"
LDFLAGS="${LDFLAGS=}"
DLLFLAGS="${DLLFLAGS=}"
HOST_CFLAGS="${HOST_CFLAGS=}"
HOST_LDFLAGS="${HOST_LDFLAGS=}"
case "$target" in
*-cygwin*|*-mingw*|*-msys*)
# Check to see if we are really running in a msvc environemnt
_WIN32_MSVC=
AC_CHECK_PROGS(CC, cl)
cat > conftest.c <<EOF
#ifdef _MSC_VER
COMPILER IS MSVC
#endif
EOF
read dummy <<EOF
$($CC -E conftest.c 2>/dev/null | grep COMPILER)
EOF
if test -n "$dummy"; then
_WIN32_MSVC=1
CXX=$CC
fi
rm -f conftest.c
;;
*-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],
android_toolchain=$withval)
dnl The default android_version is different for each target cpu.
case "$target_cpu" in
arm)
android_version=5
;;
i?86|mipsel)
android_version=9
;;
esac
AC_ARG_WITH(android-version,
[ --with-android-version=VER
Android platform version, default 5 for arm, 9 for x86/mips],
android_version=$withval)
AC_ARG_WITH(android-platform,
[ --with-android-platform=DIR
location of platform dir],
android_platform=$withval)
case "$target" in
x86_64-linux*-android*)
android_tool_prefix="x86_64-linux-android"
;;
aarch64-linux*-android*)
android_tool_prefix="aarch64-linux-android"
;;
arm-linux*-android*|*-linuxandroid*)
android_tool_prefix="arm-linux-androideabi"
;;
i?86-*android*)
android_tool_prefix="i686-linux-android"
;;
mipsel-*android*)
android_tool_prefix="mipsel-linux-android"
;;
*)
android_tool_prefix="$target_os"
;;
esac
case "$target" in
*-android*|*-linuxandroid*)
if test -z "$android_ndk" ; then
AC_MSG_ERROR([You must specify --with-android-ndk=/path/to/ndk when targeting Android.])
fi
if test -z "$android_toolchain" ; then
AC_MSG_CHECKING([for android toolchain directory])
kernel_name=`uname -s | tr "[[:upper:]]" "[[:lower:]]"`
case "$target_cpu" in
arm)
target_name=arm-linux-androideabi-4.4.3
;;
i?86)
target_name=x86-4.4.3
;;
mipsel)
target_name=mipsel-linux-android-4.4.3
;;
esac
android_toolchain="$android_ndk"/toolchains/$target_name/prebuilt/$kernel_name-x86
if test -d "$android_toolchain" ; then
AC_MSG_RESULT([$android_toolchain])
else
AC_MSG_ERROR([not found. You have to specify --with-android-toolchain=/path/to/ndk/toolchain.])
fi
fi
if test -z "$android_platform" ; then
AC_MSG_CHECKING([for android platform directory])
case "$target_cpu" in
arm)
target_name=arm
;;
i?86)
target_name=x86
;;
mipsel)
target_name=mips
;;
esac
android_platform="$android_ndk"/platforms/android-"$android_version"/arch-"$target_name"
if test -d "$android_platform" ; then
AC_MSG_RESULT([$android_platform])
else
AC_MSG_ERROR([not found. You have to specify --with-android-platform=/path/to/ndk/platform.])
fi
fi
dnl Old NDK support. If minimum requirement is changed to NDK r8b,
dnl please remove this.
case "$target_cpu" in
i?86)
if ! test -e "$android_toolchain"/bin/"$android_tool_prefix"-gcc; then
dnl Old NDK toolchain name
android_tool_prefix="i686-android-linux"
fi
;;
esac
dnl set up compilers
AS="$android_toolchain"/bin/"$android_tool_prefix"-as
CC="$android_toolchain"/bin/"$android_tool_prefix"-gcc
CXX="$android_toolchain"/bin/"$android_tool_prefix"-g++
CPP="$android_toolchain"/bin/"$android_tool_prefix"-cpp
LD="$android_toolchain"/bin/"$android_tool_prefix"-ld
AR="$android_toolchain"/bin/"$android_tool_prefix"-ar
RANLIB="$android_toolchain"/bin/"$android_tool_prefix"-ranlib
STRIP="$android_toolchain"/bin/"$android_tool_prefix"-strip
CPPFLAGS="-I$android_platform/usr/include $CPPFLAGS"
CFLAGS="-mandroid -I$android_platform/usr/include -fno-short-enums -fno-exceptions $CFLAGS"
CXXFLAGS="-mandroid -I$android_platform/usr/include -fpic -fno-short-enums -fno-exceptions $CXXFLAGS"
LDFLAGS="-mandroid -L$android_platform/usr/lib -Wl,-rpath-link=$android_platform/usr/lib --sysroot=$android_platform $LDFLAGS"
AC_DEFINE(ANDROID)
;;
esac
dnl ========================================================
dnl =
dnl = Check options that may affect the compiler
dnl =
dnl ========================================================
dist_prefix='${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 $enableval | tr a-z A-Z`)
AC_ARG_ENABLE(debug-rtl,
[ --enable-debug-rtl Use the MSVC debug runtime library],
[ if test "$enableval" = "yes"; then
USE_DEBUG_RTL=1
else
USE_DEBUG_RTL=0
fi ])
AC_ARG_ENABLE(static-rtl,
[ --enable-static-rtl Use the MSVC static runtime library],
[ if test "$enableval" = "yes"; then
USE_STATIC_RTL=1
fi ])
AC_ARG_ENABLE(x32,
[ --enable-x32 Enable x32 ABI support (x86_64 only)],
[ if test "$enableval" = "yes"; then
USE_X32=1
else if test "$enableval" = "no"; then
USE_X32=
fi
fi ])
AC_ARG_ENABLE(64bit,
[ --enable-64bit Enable 64-bit support (on certain platforms)],
[ if test "$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
[10.3 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
;;
*-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
;;
*-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
mks*|cygwin*|mingw*|msys*|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 $target"
cross_compiling=yes
case "$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=$CXXFLAGS
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" "${target}-gcc", echo)
unset ac_cv_prog_CC
dnl Now exit the conditional block to invoke AC_PROG_CC.
fi
dnl In the latest versions of autoconf, AC_PROG_CC is a one-shot macro,
dnl declared with AC_DEFUN_ONCE. So it must not be expanded inside a
dnl conditional block. Invoke AC_PROG_CC outside any conditional block
dnl and before invoking AC_TRY_COMPILE (which requires AC_PROG_CC).
AC_PROG_CC
dnl Reenter the conditional blocks after invoking AC_PROG_CC.
if test "$target" != "$host"; then
if test -n "$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:$target" in
powerpc-apple-darwin8*:i?86-apple-darwin*|*:arm*-apple-darwin*)
dnl Revert the changes made above. From this point on, the target
dnl compiler will never be used without applying the SDK to CFLAGS
dnl (see --with-macos-sdk below).
CFLAGS=$_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" "${target}-windres", echo)
_SAVE_CC="$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([$HOST_CC])
CC="$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_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
else
if test -n "$USE_CPLUS"; then
if test "$CC" = "cl" -a -z "$CXX"; then
CXX=$CC
else
AC_PROG_CXX
fi
fi
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="$CFLAGS"
fi
fi
AC_PROG_CPP
if test "$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 Check for pragma diagnostic
dnl ========================================================
AC_MSG_CHECKING([for pragma diagnostic])
if test "$GNU_CC" = "1"; then
cat >dummy-hello.c <<EOF
#ifdef _PR_HAS_PRAGMA_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
#endif
int main() {
char *dummy = "";
return 0;
}
EOF
${CC} -Werror=unused-but-set-variable -S dummy-hello.c -o dummy-hello.s 2>&5
if test $? != 0; then
${CC} -Werror=unused-but-set-variable -D_PR_HAS_PRAGMA_DIAGNOSTIC -S dummy-hello.c -o dummy-hello.s 2>&5
if test $? = 0; then
CFLAGS="$CFLAGS -D_PR_HAS_PRAGMA_DIAGNOSTIC=1"
_res=yes
else
_res=no
fi
else
_res=no
fi
rm -f dummy-hello.c dummy-hello.s
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 $result = "yes"; then
PROFILE_GEN_LDFLAGS="-fprofile-generate"
PROFILE_USE_CFLAGS="-fprofile-use -fprofile-correction -Wcoverage-mismatch"
PROFILE_USE_LDFLAGS="-fprofile-use"
fi
CFLAGS="$_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 "${target_os}" in
linux*) OS_ARCH=Linux ;;
solaris*) OS_ARCH=SunOS OS_RELEASE=5 ;;
mingw*) OS_ARCH=WINNT CPU_ARCH=x86 ;;
cygwin*) OS_ARCH=WINNT ;;
darwin*) OS_ARCH=Darwin ;;
riscos*) OS_ARCH=RISCOS ;;
esac
else
OS_ARCH=`uname -s | sed -e 's|/|_|g'`
OS_RELEASE=`uname -r`
OS_TEST=`uname -m`
fi
if test "$OS_ARCH" = "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
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 "$OS_ARCH" in
Windows_NT)
#
# If uname -s returns "Windows_NT", we assume that we are using
# the uname.exe in MKS toolkit.
#
# The -r option of MKS uname only returns the major version number.
# So we need to use its -v option to get the minor version number.
# Moreover, it doesn't have the -p option, so we need to use uname -m.
#
OS_ARCH=WINNT
OS_MINOR_RELEASE=`uname -v`
if test "$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*|MSYS_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.
# If uname -s returns "MSYS_NT-6.3", we assume that we are using
# the uname.exe in the MSYS2 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" -a -z "$USE_DEBUG_RTL"; then
USE_DEBUG_RTL=1
fi
fi
if test -z "$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 "$enableval" = "no"; then
MOZ_OS2_HIGH_MEMORY=
else
MOZ_OS2_HIGH_MEMORY=1
fi ])
dnl ========================================================
dnl = ARM toolchain tweaks
dnl ========================================================
dnl Defaults
MOZ_ALIGN=toolchain-default
case "$target" in
arm*-android*|arm*-linuxandroid*)
MOZ_THUMB=yes
MOZ_ARCH=armv7-a
MOZ_FPU=vfp
MOZ_FLOAT_ABI=softfp
MOZ_SOFT_FLOAT=yes
MOZ_ALIGN=no
;;
arm*-*)
if test -n "$MOZ_PLATFORM_MAEMO"; then
MOZ_THUMB=no
MOZ_ARCH=armv7-a
MOZ_FLOAT_ABI=softfp
fi
if test "$MOZ_PLATFORM_MAEMO" = 6; then
MOZ_THUMB=yes
fi
;;
esac
dnl Kept for compatibility with some buildbot mozconfig
AC_ARG_ENABLE(thumb2, [], MOZ_THUMB=$enableval)
AC_ARG_WITH(thumb,
[ --with-thumb[[=yes|no|toolchain-default]]]
[ Use Thumb instruction set (-mthumb)],
if test -z "$GNU_CC"; then
AC_MSG_ERROR([--with-thumb is not supported on non-GNU toolchain-defaults])
fi
MOZ_THUMB=$withval)