VisualAge V4.0 duplicate definition error suppression

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4597 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/dosyacc.c

@@ -247,9 +247,12 @@ void yyerror(char *s)
 #define yywrap() 1
 #endif
 #else
+#  if !(defined(__VISAGECPP__) && __IBMC__ >= 400)
+/* VA 4.0 thinks this is multiply defined (in lex_yy.c) */
    int yywrap() { return 1; }
 #  endif
 #endif
+#endif
 #line 247 "y_tab.c"
 #define YYABORT goto yyabort
 #define YYACCEPT goto yyaccept