From: Akim Demaille <akim@lrde.epita.fr>
Date: Wed, 29 May 2013 07:17:48 +0000 (+0200)
Subject: build: be sure to include config.h first in the generated parser
X-Git-Tag: v2.7.90~6
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/89ff1b5e71a6d8aa34b3578282528adb43b198cd

build: be sure to include config.h first in the generated parser

Using %code for config.h is wrong, as some headers will already have
been included by Bison.  In some cases, e.g., glibc's string.h, this
results in some declaration not being made for lack of definition of
_GNU_SOURCE, which is performed by config.h.

* src/parse-gram.y: here.
---

diff --git a/src/parse-gram.y b/src/parse-gram.y
index 9a266251..d3698895 100644
--- a/src/parse-gram.y
+++ b/src/parse-gram.y
@@ -23,9 +23,14 @@
   #include "symtab.h"
 }
 
+%code top
+{
+  /* On column 0 to please syntax-check.  */
+#include <config.h>
+}
+
 %code
 {
-  #include <config.h>
   #include "system.h"
 
   #include "c-ctype.h"