X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/9069e5de23275e0c357e495a7a9981ee11bcd90f..58b90cc2d82b068770bd38b5dff41e24a4bfeb37:/data/yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index 2ba3ceac..b06837c0 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -263,7 +263,8 @@ b4_syncline([@oline@], [@ofile@])[
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca
-#    if ! defined (_STDLIB_H) && (defined (__STDC__) || defined (__cplusplus))
+#    if (! defined (_ALLOCA_H) && ! defined (_STDLIB_H) \
+	 && (defined (__STDC__) || defined (__cplusplus)))
 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
 #     ifndef _STDLIB_H
 #      define _STDLIB_H 1