X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ef51bfa744db744dc4b2eff1ba9d6334c807f8e6..a0cd287e64e2d53bc5896e0a7c5ad072cb8bf469:/data/c.m4?ds=sidebyside

diff --git a/data/c.m4 b/data/c.m4
index 195c441d..fee006a3 100644
--- a/data/c.m4
+++ b/data/c.m4
@@ -456,6 +456,8 @@ m4_define_default([b4_yy_symbol_print_generate],
 b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
 m4_ifset([b4_parse_param], [, b4_parse_param]))[
 {
+  FILE *yyo = yyoutput;
+  YYUSE (yyo);
   if (!yyvaluep)
     return;
 ]b4_locations_if([  YYUSE (yylocationp);