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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /build/autoconf/expandlibs.m4
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'build/autoconf/expandlibs.m4')
-rw-r--r--build/autoconf/expandlibs.m466
1 files changed, 66 insertions, 0 deletions
diff --git a/build/autoconf/expandlibs.m4 b/build/autoconf/expandlibs.m4
new file mode 100644
index 000000000..898e5ce01
--- /dev/null
+++ b/build/autoconf/expandlibs.m4
@@ -0,0 +1,66 @@
+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_EXPAND_LIBS],
+[
+dnl ========================================================
+dnl =
+dnl = Check what kind of list files are supported by the
+dnl = linker
+dnl =
+dnl ========================================================
+
+AC_CACHE_CHECK(what kind of list files are supported by the linker,
+ EXPAND_LIBS_LIST_STYLE,
+ [echo "int main() {return 0;}" > conftest.${ac_ext}
+ if AC_TRY_COMMAND(${CC-cc} -o conftest.${OBJ_SUFFIX} -c $CFLAGS $CPPFLAGS conftest.${ac_ext} 1>&5) && test -s conftest.${OBJ_SUFFIX}; then
+ echo "INPUT(conftest.${OBJ_SUFFIX})" > conftest.list
+ if AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then
+ EXPAND_LIBS_LIST_STYLE=linkerscript
+ else
+ echo "conftest.${OBJ_SUFFIX}" > conftest.list
+ dnl -filelist is for the OS X linker. We need to try -filelist
+ dnl first because clang understands @file, but may pass an
+ dnl oversized argument list to the linker depending on the
+ dnl contents of @file.
+ if AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS [-Wl,-filelist,conftest.list] $LIBS 1>&5) && test -s conftest${ac_exeext}; then
+ EXPAND_LIBS_LIST_STYLE=filelist
+ elif AC_TRY_COMMAND(${CC-cc} -o conftest${ac_exeext} $LDFLAGS @conftest.list $LIBS 1>&5) && test -s conftest${ac_exeext}; then
+ EXPAND_LIBS_LIST_STYLE=list
+ else
+ EXPAND_LIBS_LIST_STYLE=none
+ fi
+ fi
+ else
+ dnl We really don't expect to get here, but just in case
+ AC_ERROR([couldn't compile a simple C file])
+ fi
+ rm -rf conftest*])
+
+LIBS_DESC_SUFFIX=desc
+AC_SUBST(LIBS_DESC_SUFFIX)
+AC_SUBST(EXPAND_LIBS_LIST_STYLE)
+
+if test "$GCC_USE_GNU_LD"; then
+ AC_CACHE_CHECK(what kind of ordering can be done with the linker,
+ EXPAND_LIBS_ORDER_STYLE,
+ [> conftest.order
+ _SAVE_LDFLAGS="$LDFLAGS"
+ LDFLAGS="${LDFLAGS} -Wl,--section-ordering-file,conftest.order"
+ AC_TRY_LINK([], [],
+ EXPAND_LIBS_ORDER_STYLE=section-ordering-file,
+ EXPAND_LIBS_ORDER_STYLE=)
+ LDFLAGS="$_SAVE_LDFLAGS"
+ if test -z "$EXPAND_LIBS_ORDER_STYLE"; then
+ if AC_TRY_COMMAND(${CC-cc} ${DSO_LDOPTS} ${LDFLAGS} -o ${DLL_PREFIX}conftest${DLL_SUFFIX} -Wl,--verbose 2> /dev/null | sed -n '/^===/,/^===/p' | grep '\.text'); then
+ EXPAND_LIBS_ORDER_STYLE=linkerscript
+ else
+ EXPAND_LIBS_ORDER_STYLE=none
+ fi
+ rm -f ${DLL_PREFIX}conftest${DLL_SUFFIX}
+ fi])
+fi
+AC_SUBST(EXPAND_LIBS_ORDER_STYLE)
+
+])