--- gcc/cp/cfns.gperf.orig	2015-09-10 00:07:49.610591547 +0200
+++ gcc/cp/cfns.gperf	2015-09-10 00:08:11.430689952 +0200
@@ -22,6 +22,9 @@
 static unsigned int hash (const char *, unsigned int);
 #ifdef __GNUC__
 __inline
+#ifdef _GNUC_STDC_INLINE_
+__attribute__ ((__gnu_inline__))
+#endif
 #endif
 const char * libc_name_p (const char *, unsigned int);
 %}