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comparison: build/autoconf/expandlibs.m4
build/autoconf/expandlibs.m4
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:bf6ab293f633 |
|---|---|
| 1 dnl This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 dnl License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 4 | |
| 5 AC_DEFUN([MOZ_EXPAND_LIBS], | |
| 6 [ | |
| 7 dnl ======================================================== | |
| 8 dnl = | |
| 9 dnl = Check what kind of list files are supported by the | |
| 10 dnl = linker | |
| 11 dnl = | |
| 12 dnl ======================================================== | |
| 13 | |
| 14 AC_CACHE_CHECK(what kind of list files are supported by the linker, | |
| 15 EXPAND_LIBS_LIST_STYLE, | |
| 16 [echo "int main() {return 0;}" > conftest.${ac_ext} | |
| 17 if AC_TRY_COMMAND(${CC-cc} -o conftest.${OBJ_SUFFIX} -c $CFLAGS $CPPFLAGS conftest.${ac_ext} 1>&5) && test -s conftest.${OBJ_SUFFIX}; then | |
| 18 echo "INPUT(conftest.${OBJ_SUFFIX})" > conftest.list | |
| 19 if AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then | |
| 20 EXPAND_LIBS_LIST_STYLE=linkerscript | |
| 21 else | |
| 22 echo "conftest.${OBJ_SUFFIX}" > conftest.list | |
| 23 dnl -filelist is for the OS X linker. We need to try -filelist | |
| 24 dnl first because clang understands @file, but may pass an | |
| 25 dnl oversized argument list to the linker depending on the | |
| 26 dnl contents of @file. | |
| 27 if AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS [-Wl,-filelist,conftest.list] $LIBS 1>&5) && test -s conftest${ac_exeext}; then | |
| 28 EXPAND_LIBS_LIST_STYLE=filelist | |
| 29 elif AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS @conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then | |
| 30 EXPAND_LIBS_LIST_STYLE=list | |
| 31 else | |
| 32 EXPAND_LIBS_LIST_STYLE=none | |
| 33 fi | |
| 34 fi | |
| 35 else | |
| 36 dnl We really don't expect to get here, but just in case | |
| 37 AC_ERROR([couldn't compile a simple C file]) | |
| 38 fi | |
| 39 rm -rf conftest*]) | |
| 40 | |
| 41 LIBS_DESC_SUFFIX=desc | |
| 42 AC_SUBST(LIBS_DESC_SUFFIX) | |
| 43 AC_SUBST(EXPAND_LIBS_LIST_STYLE) | |
| 44 | |
| 45 if test "$GCC_USE_GNU_LD"; then | |
| 46 AC_CACHE_CHECK(what kind of ordering can be done with the linker, | |
| 47 EXPAND_LIBS_ORDER_STYLE, | |
| 48 [> conftest.order | |
| 49 _SAVE_LDFLAGS="$LDFLAGS" | |
| 50 LDFLAGS="${LDFLAGS} -Wl,--section-ordering-file,conftest.order" | |
| 51 AC_TRY_LINK([], [], | |
| 52 EXPAND_LIBS_ORDER_STYLE=section-ordering-file, | |
| 53 EXPAND_LIBS_ORDER_STYLE=) | |
| 54 LDFLAGS="$_SAVE_LDFLAGS" | |
| 55 if test -z "$EXPAND_LIBS_ORDER_STYLE"; then | |
| 56 if AC_TRY_COMMAND(${CC-cc} ${DSO_LDOPTS} ${LDFLAGS} -o ${DLL_PREFIX}conftest${DLL_SUFFIX} -Wl,--verbose 2> /dev/null | sed -n '/^===/,/^===/p' | grep '\.text'); then | |
| 57 EXPAND_LIBS_ORDER_STYLE=linkerscript | |
| 58 else | |
| 59 EXPAND_LIBS_ORDER_STYLE=none | |
| 60 fi | |
| 61 rm -f ${DLL_PREFIX}conftest${DLL_SUFFIX} | |
| 62 fi]) | |
| 63 fi | |
| 64 AC_SUBST(EXPAND_LIBS_ORDER_STYLE) | |
| 65 | |
| 66 ]) |
