* simplify-rtx.c (simplify_binary_operation): Revert last change.

[pf3gnuchains/gcc-fork.git] / gcc / acconfig.h

diff --git a/gcc/acconfig.h b/gcc/acconfig.h
index 3e8c595..dec619b 100644 (file)
--- a/gcc/acconfig.h
+++ b/gcc/acconfig.h
@@ -25,3 +25,17 @@
 
 /* Define to `int' if <sys/types.h> doesn't define.  */
 #undef ssize_t
+
+@BOTTOM@
+
+/* Bison unconditionally undefines `const' if neither `__STDC__' nor
+   __cplusplus are defined.  That's a problem since we use `const' in
+   the GCC headers, and the resulting bison code is therefore type
+   unsafe.  Thus, we must match the bison behavior here.  */
+
+#ifndef __STDC__
+#ifndef __cplusplus
+#undef const
+#define const
+#endif
+#endif