$OpenBSD: patch-semantics_c,v 1.1 2021/02/02 06:53:29 jsg Exp $

fix -fno-common build

Index: semantics.c
--- semantics.c.orig
+++ semantics.c
@@ -119,7 +119,7 @@ typedef struct output_page_t
 #endif
 
 
-FILE *yyin;
+extern FILE *yyin;
 int line;  /* line number in spec file */
 
 int bookmark_level;
