Fixes for -fno-common
https://github.com/rubund/graywolf/commit/f47937b66d4d44eafc4224f7c43d556dbf88f05b

Index: src/twsc/parser.c
--- src/twsc/parser.c.orig
+++ src/twsc/parser.c
@@ -111,6 +111,8 @@ REVISIONS:  Mon Nov 19 04:04:18 EST 1990 - added tempe
 INT ECOs_existG = 0 ;
 INT orig_max_row_lengthG ;
 
+extern INT maxCellOG ;
+
 extern INT totalRG ;
 extern INT spacer_widthG ;
 extern INT *spacer_feedsG ;
