diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ld-no-undefined.m4 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/m4/ld-no-undefined.m4 b/m4/ld-no-undefined.m4 new file mode 100644 index 00000000..b6db946a --- /dev/null +++ b/m4/ld-no-undefined.m4 @@ -0,0 +1,24 @@ +# ld-no-undefined.m4 serial 1 + +# Test if ld supports --no-undefined + +AC_DEFUN([PAM_LD_NO_UNDEFINED], + [ + AC_CACHE_CHECK(whether ld supports --no-undefined, + pam_cv_ld_no_undefined, [ dnl + cat > conftest.c <<EOF +int main (void) { return 0; } +EOF + if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -o conftest.o conftest.c + -Wl,--no-undefined 1>&AS_MESSAGE_LOG_FD]) + then + pam_cv_ld_no_undefined=yes + LDFLAGS="$LDFLAGS -Wl,--no-undefined" + else + pam_cv_ld_no_undefined=no + fi + rm -f conftest*]) + AC_SUBST(pam_cv_ld_no_undefined) + ] +) |