gecko-dev/build/autoconf/ffi.m4

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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_DEFUN([MOZ_SUBCONFIGURE_FFI], [
if test "$MOZ_BUILD_APP" != js -o -n "$JS_STANDALONE"; then
if test "$BUILD_CTYPES" -a -z "$MOZ_SYSTEM_FFI"; then
# Run the libffi 'configure' script.
ac_configure_args="--disable-shared --enable-static --disable-raw-api"
if test "$MOZ_DEBUG"; then
ac_configure_args="$ac_configure_args --enable-debug"
fi
if test "$DSO_PIC_CFLAGS"; then
ac_configure_args="$ac_configure_args --with-pic"
fi
for var in AS CC CXX CPP LD AR RANLIB STRIP; do
ac_configure_args="$ac_configure_args $var='`eval echo \\${${var}}`'"
done
old_cflags="$CFLAGS"
# The libffi sources (especially the ARM ones) are written expecting gas
# syntax, and clang's integrated assembler doesn't handle all of gas syntax.
if test -n "$CLANG_CC" -a "$CPU_ARCH" = arm; then
CFLAGS="-no-integrated-as $CFLAGS"
fi
ac_configure_args="$ac_configure_args --build=$build --host=$target"
if test "$CROSS_COMPILE"; then
ac_configure_args="$ac_configure_args \
CFLAGS=\"$CFLAGS\" \
CPPFLAGS=\"$CPPFLAGS\" \
LDFLAGS=\"$LDFLAGS\""
fi
CFLAGS="$old_cflags"
if test "$_MSC_VER"; then
# Use a wrapper script for cl and ml that looks more like gcc.
# autotools can't quite handle an MSVC build environment yet.
LDFLAGS=
CFLAGS=
ac_configure_args="$ac_configure_args LD=link CPP=\"$CC -nologo -EP\" \
CXXCPP=\"$CXX -nologo -EP\" SHELL=sh.exe"
flags=
if test -z "$MOZ_NO_DEBUG_RTL" -a -n "$MOZ_DEBUG"; then
flags=" -DUSE_DEBUG_RTL"
fi
if test -n "$CLANG_CL"; then
flags="$flags -clang-cl"
fi
case "${target_cpu}" in
x86_64)
# Need target since MSYS tools into mozilla-build may be 32bit
ac_configure_args="$ac_configure_args \
CC=\"$_topsrcdir/js/src/ctypes/libffi/msvcc.sh -m64$flags\" \
CXX=\"$_topsrcdir/js/src/ctypes/libffi/msvcc.sh -m64$flags\""
;;
*)
ac_configure_args="$ac_configure_args \
CC=\"$_topsrcdir/js/src/ctypes/libffi/msvcc.sh$flags\" \
CXX=\"$_topsrcdir/js/src/ctypes/libffi/msvcc.sh$flags\""
;;
esac
fi
# Use a separate cache file for libffi, since it does things differently
# from our configure.
old_config_files=$CONFIG_FILES
unset CONFIG_FILES
AC_OUTPUT_SUBDIRS(js/src/ctypes/libffi)
ac_configure_args="$_SUBDIR_CONFIG_ARGS"
CONFIG_FILES=$old_config_files
fi
fi
])