1 files changed, 37 insertions, 0 deletions
diff --git a/third_party/heimdal/cf/have-pragma-weak.m4 b/third_party/heimdal/cf/have-pragma-weak.m4
new file mode 100644
index 0000000..cd892bd
--- /dev/null
+++ b/third_party/heimdal/cf/have-pragma-weak.m4
@@ -0,0 +1,37 @@
+dnl $Id$
+dnl
+AC_DEFUN([AC_HAVE_PRAGMA_WEAK], [
+if test "${enable_shared}" = "yes"; then
+AC_MSG_CHECKING(for pragma weak)
+AC_CACHE_VAL(ac_have_pragma_weak, [
+ac_have_pragma_weak=no
+cat > conftest_foo.$ac_ext <<'EOF'
+[#]line __oline__ "configure"
+#include "confdefs.h"
+#pragma weak foo = _foo
+int _foo = 17;
+EOF
+cat > conftest_bar.$ac_ext <<'EOF'
+[#]line __oline__ "configure"
+#include "confdefs.h"
+extern int foo;
+
+int t(void) {
+  return foo;
+}
+
+int main(int argc, char **argv) {
+  return t();
+}
+EOF
+if AC_TRY_EVAL('CC -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest_foo.$ac_ext conftest_bar.$ac_ext 1>&AC_FD_CC'); then
+ac_have_pragma_weak=yes
+fi
+rm -rf conftest*
+])
+if test "$ac_have_pragma_weak" = "yes"; then
+	AC_DEFINE(HAVE_PRAGMA_WEAK, 1, [Define this if your compiler supports \`#pragma weak.'])dnl
+fi
+AC_MSG_RESULT($ac_have_pragma_weak)
+fi
+])