1--- misc/build/raptor2-2.0.15/configure	2014-11-02 01:04:38.000000000 -0500
2+++ misc/build/raptor2-2.0.15/configure	2021-07-08 14:26:15.000000000 -0400
3@@ -13747,6 +13747,7 @@
4 $as_echo_n "checking whether __FUNCTION__ is available... " >&6; }
5 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
6 /* end confdefs.h.  */
7+#include <stdio.h>
8 int main() { printf(__FUNCTION__); }
9 _ACEOF
10 if ac_fn_c_try_compile "$LINENO"; then :
11