Index: pcre-8.42/pcre_exec.c
===================================================================
--- pcre-8.42/pcre_exec.c
+++ pcre-8.42/pcre_exec.c	2018-04-17 21:50:28.861358580 +0200
@@ -509,6 +509,13 @@
                  (e.g. stopped by repeated call or recursion limit)
 */
 
+#ifdef __GNUC__
+static int
+match(REGISTER PCRE_PUCHAR eptr, REGISTER const pcre_uchar *ecode,
+  PCRE_PUCHAR mstart, int offset_top, match_data *md, eptrblock *eptrb,
+  unsigned int rdepth) __attribute__((noinline,noclone));
+#endif
+
 static int
 match(REGISTER PCRE_PUCHAR eptr, REGISTER const pcre_uchar *ecode,
   PCRE_PUCHAR mstart, int offset_top, match_data *md, eptrblock *eptrb,