Fix build from git repository.

[ginac.git] / ginsh / ginsh.h

diff --git a/ginsh/ginsh.h b/ginsh/ginsh.h
index fdf9e08b064317a2ff784c4c8578295e774a2a40..92a53b45cfc376db329ad7a47f51f2d148a572a4 100644 (file)
--- a/ginsh/ginsh.h
+++ b/ginsh/ginsh.h
@@ -56,7 +56,7 @@ using namespace GiNaC;
 #define YYSTYPE ex
 
 // lex functions/variables
-extern int yyerror(char *s);
+extern int yyerror(const char *s);
 extern int yylex(void);
 extern char *yytext;
 extern FILE *yyin;