Fix compatibility with gcc 10.

Author: df7cb

debian/changelog

@@ -1,3 +1,9 @@
+postgresql-numeral (1.3-1) unstable; urgency=medium
+
+  * Fix compatibility with gcc 10.
+
+ -- Christoph Berg <myon@debian.org>  Tue, 28 Jul 2020 22:10:46 +0200
+
 postgresql-numeral (1.2-1) unstable; urgency=medium
 
   * Fix passbyvalue logic on PG13/32-bit.

romanfuncs.c

@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2017 Christoph Berg
+Copyright (C) 2017-2020 Christoph Berg
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@ GNU General Public License for more details.
 
 /* input and output */
 
-char *yyerrstr; /* copy of error catched by yyromanerror() */
+extern char *yyerrstr; /* copy of error catched by yyromanerror() */
 
 void yyromanerror (char *s);
 

zahlfuncs.c

@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2017 Christoph Berg
+Copyright (C) 2017-2020 Christoph Berg
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@ GNU General Public License for more details.
 
 /* input and output */
 
-char *yyerrstr; /* copy of error catched by yyzahlerror() */
+extern char *yyerrstr; /* copy of error catched by yyzahlerror() */
 
 void yyzahlerror (char *s);