Fix portability problem on OpenBSD 4.7.

Jim Meyering reported this in
<http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
* data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
not _STDLIB_H.  EXIT_SUCCESS has been defined by the standard
for quite some time.
* src/parse-gram.c, src/parse-gram.h: Regenerate.
* tests/regression.at: Tamper with the renamed witness.

5 files changed, 32 insertions, 22 deletions

diff --git a/ChangeLog b/ChangeLog
index 65a7c029..05278350 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
 2010-10-08  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Fix portability problem on OpenBSD 4.7.
+
+	Jim Meyering reported this in
+	<http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
+	* data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
+	not _STDLIB_H.  EXIT_SUCCESS has been defined by the standard
+	for quite some time.
+	* src/parse-gram.c, src/parse-gram.h: Regenerate.
+	* tests/regression.at: Tamper with the renamed witness.
+
 	Adjust to recent changes to gnulib bootstrap.
 
 	* .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
diff --git a/data/yacc.c b/data/yacc.c
index 28a2b238..e41e2e9c 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -419,10 +419,10 @@ typedef short int yytype_int16;
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[
+#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && ]b4_c_modern[
 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#     ifndef _STDLIB_H
-#      define _STDLIB_H 1
+#     ifndef EXIT_SUCCESS
+#      define EXIT_SUCCESS 0
 #     endif
 #    endif
 #   endif
@@ -446,23 +446,23 @@ typedef short int yytype_int16;
 #  ifndef YYSTACK_ALLOC_MAXIMUM
 #   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
 #  endif
-#  if (defined __cplusplus && ! defined _STDLIB_H \
+#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
        && ! ((defined YYMALLOC || defined malloc) \
 	     && (defined YYFREE || defined free)))
 #   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef _STDLIB_H
-#    define _STDLIB_H 1
+#   ifndef EXIT_SUCCESS
+#    define EXIT_SUCCESS 0
 #   endif
 #  endif
 #  ifndef YYMALLOC
 #   define YYMALLOC malloc
-#   if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[
+#   if ! defined malloc && ! defined EXIT_SUCCESS && ]b4_c_modern[
 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 #  ifndef YYFREE
 #   define YYFREE free
-#   if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[
+#   if ! defined free && ! defined EXIT_SUCCESS && ]b4_c_modern[
 void free (void *); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
diff --git a/src/parse-gram.c b/src/parse-gram.c
index e5713416..df7ed1f4 100644
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 2.4.516-804e.  */
+/* A Bison parser, made by GNU Bison 2.4.533-95aed.  */
 
 /* Implementation for Bison's Yacc-like parsers in C
 
@@ -45,7 +45,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.4.516-804e"
+#define YYBISON_VERSION "2.4.533-95aed"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -472,11 +472,11 @@ YYID (yyi)
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#     ifndef _STDLIB_H
-#      define _STDLIB_H 1
+#     ifndef EXIT_SUCCESS
+#      define EXIT_SUCCESS 0
 #     endif
 #    endif
 #   endif
@@ -499,24 +499,24 @@ YYID (yyi)
 #  ifndef YYSTACK_ALLOC_MAXIMUM
 #   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
 #  endif
-#  if (defined __cplusplus && ! defined _STDLIB_H \
+#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
        && ! ((defined YYMALLOC || defined malloc) \
 	     && (defined YYFREE || defined free)))
 #   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef _STDLIB_H
-#    define _STDLIB_H 1
+#   ifndef EXIT_SUCCESS
+#    define EXIT_SUCCESS 0
 #   endif
 #  endif
 #  ifndef YYMALLOC
 #   define YYMALLOC malloc
-#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+#   if ! defined malloc && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 #  ifndef YYFREE
 #   define YYFREE free
-#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+#   if ! defined free && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 void free (void *); /* INFRINGES ON USER NAME SPACE */
 #   endif
diff --git a/src/parse-gram.h b/src/parse-gram.h
index d8eea03c..2f5654c6 100644
--- a/src/parse-gram.h
+++ b/src/parse-gram.h
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 2.4.516-804e.  */
+/* A Bison parser, made by GNU Bison 2.4.533-95aed.  */
 
 /* Interface for Bison's Yacc-like parsers in C
 
diff --git a/tests/regression.at b/tests/regression.at
index ceb18b94..b3fdc29f 100644
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -1367,11 +1367,11 @@ AT_DATA_GRAMMAR([input.y],
      large enough to overflow size_t.  */
   #define YYSIZE_T unsigned char
 
-  /* Bring in malloc and set _STDLIB_H so yacc.c doesn't try to
+  /* Bring in malloc and set EXIT_SUCCESS so yacc.c doesn't try to
      provide a malloc prototype using our YYSIZE_T.  */
   #include <stdlib.h>
-  #ifndef _STDLIB_H
-  # define _STDLIB_H 1
+  #ifndef EXIT_SUCCESS
+  # define EXIT_SUCCESS 0
   #endif
 
   /* Max depth is usually much smaller than YYSTACK_ALLOC_MAXIMUM, and