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Index: gcc/configure.ac
===================================================================
--- gcc/configure.ac (revision 161355)
+++ gcc/configure.ac (working copy)
@@ -4544,15 +4544,23 @@
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
+ case "${host}" in
+ *-*-darwin*)
+ export_sym_check="$gcc_cv_nm -g"
+ ;;
+ *)
+ export_sym_check="$gcc_cv_objdump -T"
+ ;;
+ esac
AC_MSG_CHECKING([for exported symbols])
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
: # No need to use a flag
else
AC_MSG_CHECKING([for -rdynamic])
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
plugin_rdynamic=yes
pluginlibs="-rdynamic"
else
@@ -4572,7 +4580,14 @@
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ case "${host}" in
+ *-*-darwin*)
+ LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+ ;;
+ *)
+ LDFLAGS="$LDFLAGS -fPIC -shared"
+ ;;
+ esac
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
[extern int X;],[return X == 0;],
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