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/.
5
AC_DEFUN([MOZ_EXPAND_LIBS],
7
dnl ========================================================
9
dnl = Check what kind of list files are supported by the
12
dnl ========================================================
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
22
echo "conftest.${OBJ_SUFFIX}" > conftest.list
23
if AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS @conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then
24
EXPAND_LIBS_LIST_STYLE=list
26
EXPAND_LIBS_LIST_STYLE=none
30
dnl We really don't expect to get here, but just in case
31
AC_ERROR([couldn't compile a simple C file])
36
AC_SUBST(LIBS_DESC_SUFFIX)
37
AC_SUBST(EXPAND_LIBS_LIST_STYLE)
39
if test "$GCC_USE_GNU_LD"; then
40
AC_CACHE_CHECK(what kind of ordering can be done with the linker,
41
EXPAND_LIBS_ORDER_STYLE,
43
_SAVE_LDFLAGS="$LDFLAGS"
44
LDFLAGS="${LDFLAGS} -Wl,--section-ordering-file,conftest.order"
46
EXPAND_LIBS_ORDER_STYLE=section-ordering-file,
47
EXPAND_LIBS_ORDER_STYLE=)
48
LDFLAGS="$_SAVE_LDFLAGS"
49
if test -z "$EXPAND_LIBS_ORDER_STYLE"; then
50
if AC_TRY_COMMAND(${CC-cc} ${DSO_LDOPTS} ${LDFLAGS} -o ${DLL_PREFIX}conftest${DLL_SUFFIX} -Wl,--verbose 2> /dev/null | sed -n '/^===/,/^===/p' | grep '\.text'); then
51
EXPAND_LIBS_ORDER_STYLE=linkerscript
53
EXPAND_LIBS_ORDER_STYLE=none
55
rm -f ${DLL_PREFIX}conftest${DLL_SUFFIX}
58
AC_SUBST(EXPAND_LIBS_ORDER_STYLE)