(EXTRA_DIST): Avoid +=, a GNU make extension.

[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index 0c5833e39c5a3884bcf760a2e7d60d336a6fadc8..18b1377992e7b102fcc98f7f7f14a58d0930bf2c 100644 (file)
--- a/src/system.h
+++ b/src/system.h
@@ -1,5 +1,5 @@
 /* system-dependent definitions for Bison.
-   Copyright 2000, 2001, 2002  Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -22,6 +22,23 @@
 # include <config.h>
 #endif
 
+/* AIX requires this to be the first thing in the file.  */
+#ifdef __GNUC__
+# define alloca(Size) __builtin_alloca (Size)
+#else
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+ #pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+# endif
+#endif
+
 #include <stdio.h>
 
 #include <assert.h>
@@ -57,30 +74,11 @@
 /* memory.h and strings.h conflict on some systems.  */
 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
 
-#if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
-# include <ctype.h>
-#endif
-
 #include <errno.h>
 #ifndef errno
 extern int errno;
 #endif
 
-/* AIX requires this to be the first thing in the file.  */
-#ifndef __GNUC__
-# if HAVE_ALLOCA_H
-#  include <alloca.h>
-# else
-#  ifdef _AIX
- #pragma alloca
-#  else
-#   ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-#   endif
-#  endif
-# endif
-#endif
-
 #ifndef PARAMS
 # if defined PROTOTYPES || defined __STDC__
 #  define PARAMS(Args) Args
@@ -89,11 +87,30 @@ char *alloca ();
 # endif
 #endif
 
+#if HAVE_LIMITS_H
+# include <limits.h>
+#endif
+#ifndef SHRT_MIN
+# define SHRT_MIN (-32768)
+#endif
+#ifndef SHRT_MAX
+# define SHRT_MAX 32767
+#endif
+
 # include "xalloc.h"
 
 /* From xstrndup.c.  */
 char *xstrndup PARAMS ((const char *s, size_t n));
 
+
+/*----------------.
+| Using timevar.  |
+`----------------*/
+
+#include "timevar.h"
+extern int time_report;
+
+
 /*---------------------.
 | Missing prototypes.  |
 `---------------------*/
@@ -106,10 +123,6 @@ char *stpcpy PARAMS ((char *dest, const char *src));
 char *strchr(const char *s, int c);
 #endif
 
-#if !HAVE_DECL_STRNDUP
-char *strndup PARAMS ((const char *s, size_t size));
-#endif
-
 #if !HAVE_DECL_STRSPN
 size_t strspn(const char *s, const char *accept);
 #endif
@@ -138,14 +151,22 @@ void *memrchr PARAMS ((const void *s, int c, size_t n));
 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 #  define __attribute__(Spec) /* empty */
 # endif
+#endif
+
 /* The __-protected variants of `format' and `printf' attributes
    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
-#  define __format__ format
-#  define __printf__ printf
-# endif
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __format__ format
+# define __printf__ printf
 #endif
 
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
 
 /*------.
 | NLS.  |
@@ -223,23 +244,6 @@ do {                                                               \
 } while (0)
 
 
-/*---------------------------------.
-| Machine-dependencies for Bison.  |
-`---------------------------------*/
-
-#ifdef eta10
-# define       MAXSHORT        2147483647
-# define       MINSHORT        -2147483648
-#else
-# define       MAXSHORT        32767
-# define       MINSHORT        -32768
-#endif
-
-#if defined (MSDOS) && !defined (__GO32__)
-# define MAXTABLE      16383
-#else
-# define MAXTABLE      32767
-#endif
 
 /*-----------------------------------------.
 | Extensions to use for the output files.  |
@@ -249,21 +253,15 @@ do {                                                              \
   /* VMS. */
 # define EXT_TAB       "_tab"
 # define EXT_OUTPUT    ".output"
-# define EXT_STYPE_H   "_stype"
-# define EXT_GUARD_C   "_guard"
 #else /* ! VMS */
 # ifdef MSDOS
    /* MS DOS. */
 #  define EXT_TAB      "_tab"
 #  define EXT_OUTPUT   ".out"
-#  define EXT_STYPE_H  ".sth"
-#  define EXT_GUARD_C  ".guc"
 # else /* ! MSDOS */
   /* Standard. */
 #  define EXT_TAB      ".tab"
 #  define EXT_OUTPUT   ".output"
-#  define EXT_STYPE_H  ".stype"
-#  define EXT_GUARD_C  ".guard"
 # endif /* ! MSDOS */
 #endif /* ! VMS */
 
@@ -273,13 +271,6 @@ do {                                                               \
 
 
 
-/*----------------------------.
-| As memcpy, but for shorts.  |
-`----------------------------*/
-
-#define shortcpy(Dest, Src, Num) \
-  memcpy (Dest, Src, Num * sizeof (short))
-
 /*---------------------.
 | Free a linked list.  |
 `---------------------*/