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

[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index 5d332099c4b316b60f2f98fe2f049d1d43653dba..18b1377992e7b102fcc98f7f7f14a58d0930bf2c 100644 (file)
--- a/src/system.h
+++ b/src/system.h
@@ -1,46 +1,298 @@
-#ifdef MSDOS
-#include <io.h>
+/* system-dependent definitions for Bison.
+   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
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef BISON_SYSTEM_H
+#define BISON_SYSTEM_H
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>

 #endif
 
 #endif
 

-#if defined(HAVE_STDLIB_H) || defined(MSDOS)
-#include <stdlib.h>
+/* 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
 
 #endif
 

-#if (defined(VMS) || defined(MSDOS)) && !defined(HAVE_STRING_H)
-#define HAVE_STRING_H 1
+#include <stdio.h>
+
+#include <assert.h>
+
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+/* The following test is to work around the gross typo in
+   systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
+   is defined to 0, not 1.  */
+#if !EXIT_FAILURE
+# undef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif
+
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+#endif
+
+#if HAVE_UNISTD_H
+# include <unistd.h>

 #endif
 
 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
 #endif
 
 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)

-#include <string.h>
+# include <string.h>

 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */

-#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
-#include <memory.h>
-#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
-#ifndef bcopy
-#define bcopy(src, dst, num) memcpy((dst), (src), (num))
-#endif
+# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
+#  include <memory.h>
+# endif /* not STDC_HEADERS and HAVE_MEMORY_H */

 #else /* not STDC_HEADERS and not HAVE_STRING_H */
 #else /* not STDC_HEADERS and not HAVE_STRING_H */

-#include <strings.h>
+# include <strings.h>

 /* memory.h and strings.h conflict on some systems.  */
 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
 
 /* memory.h and strings.h conflict on some systems.  */
 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
 

-#if HAVE_LOCALE_H
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
+#ifndef PARAMS
+# if defined PROTOTYPES || defined __STDC__
+#  define PARAMS(Args) Args
+# else
+#  define PARAMS(Args) ()
+# 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.  |
+`---------------------*/
+
+#if !HAVE_DECL_STPCPY
+char *stpcpy PARAMS ((char *dest, const char *src));
+#endif
+
+#if !HAVE_DECL_STRCHR
+char *strchr(const char *s, int c);
+#endif
+
+#if !HAVE_DECL_STRSPN
+size_t strspn(const char *s, const char *accept);
+#endif
+
+#if !HAVE_DECL_STRNLEN
+size_t strnlen PARAMS ((const char *s, size_t maxlen));
+#endif
+
+#if !HAVE_DECL_MEMCHR
+void *memchr PARAMS ((const void *s, int c, size_t n));
+#endif
+
+#if !HAVE_DECL_MEMRCHR
+void *memrchr PARAMS ((const void *s, int c, size_t n));
+#endif
+
+
+
+/*-----------------.
+| GCC extensions.  |
+`-----------------*/
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
+# if !defined (__GNUC__) || __GNUC__ < 2 || \
+(__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
+
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+/*------.
+| NLS.  |
+`------*/
+
+#ifdef HAVE_LOCALE_H

 # include <locale.h>
 #endif
 # include <locale.h>
 #endif

-#if !HAVE_SETLOCALE
+#ifndef HAVE_SETLOCALE

 # define setlocale(Category, Locale)
 #endif
 
 # define setlocale(Category, Locale)
 #endif
 

-#if ENABLE_NLS
-# include <libintl.h>
-# define _(Text) gettext (Text)
-#else
-# define bindtextdomain(Domain, Directory)
-# define textdomain(Domain)
-# define _(Text) Text
+#include "gettext.h"
+#define _(Msgid)  gettext (Msgid)
+#define N_(Msgid) (Msgid)
+
+
+/*-------------------------------.
+| Fix broken compilation flags.  |
+`-------------------------------*/
+
+#ifndef LOCALEDIR
+# define LOCALEDIR "/usr/local/share/locale"

 #endif
 #endif

-#define N_(Text) Text

 
 

-/* In the meantime, waiting for Automake.  */
-#define PACKAGE "bison"
-#define LOCALEDIR "/usr/local/share/locale"
+
+/*-----------.
+| Booleans.  |
+`-----------*/
+
+#ifndef TRUE
+# define TRUE  (1)
+# define FALSE (0)
+#endif
+typedef int bool;
+
+
+/*-----------.
+| Obstacks.  |
+`-----------*/
+
+# define obstack_chunk_alloc xmalloc
+# define obstack_chunk_free  free
+# include "obstack.h"
+
+#define obstack_sgrow(Obs, Str) \
+  obstack_grow (Obs, Str, strlen (Str))
+
+#define obstack_fgrow1(Obs, Format, Arg1)      \
+do {                                           \
+  char buf[4096];                              \
+  sprintf (buf, Format, Arg1);                 \
+  obstack_grow (Obs, buf, strlen (buf));       \
+} while (0)
+
+#define obstack_fgrow2(Obs, Format, Arg1, Arg2)        \
+do {                                           \
+  char buf[4096];                              \
+  sprintf (buf, Format, Arg1, Arg2);           \
+  obstack_grow (Obs, buf, strlen (buf));       \
+} while (0)
+
+#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)  \
+do {                                                   \
+  char buf[4096];                                      \
+  sprintf (buf, Format, Arg1, Arg2, Arg3);             \
+  obstack_grow (Obs, buf, strlen (buf));               \
+} while (0)
+
+#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)    \
+do {                                                           \
+  char buf[4096];                                              \
+  sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);               \
+  obstack_grow (Obs, buf, strlen (buf));                       \
+} while (0)
+
+
+
+/*-----------------------------------------.
+| Extensions to use for the output files.  |
+`-----------------------------------------*/
+
+#ifdef VMS
+  /* VMS. */
+# define EXT_TAB       "_tab"
+# define EXT_OUTPUT    ".output"
+#else /* ! VMS */
+# ifdef MSDOS
+   /* MS DOS. */
+#  define EXT_TAB      "_tab"
+#  define EXT_OUTPUT   ".out"
+# else /* ! MSDOS */
+  /* Standard. */
+#  define EXT_TAB      ".tab"
+#  define EXT_OUTPUT   ".output"
+# endif /* ! MSDOS */
+#endif /* ! VMS */
+
+#ifndef DEFAULT_TMPDIR
+# define DEFAULT_TMPDIR "/tmp"
+#endif
+
+
+
+/*---------------------.
+| Free a linked list.  |
+`---------------------*/
+
+#define LIST_FREE(Type, List)                  \
+do {                                           \
+  Type *_node, *_next;                         \
+  for (_node = List; _node; _node = _next)     \
+    {                                          \
+      _next = _node->next;                     \
+      XFREE (_node);                           \
+    }                                          \
+} while (0)
+
+
+/*---------------------------------------------.
+| Debugging memory allocation (must be last).  |
+`---------------------------------------------*/
+
+# if WITH_DMALLOC
+#  define DMALLOC_FUNC_CHECK
+#  include <dmalloc.h>
+# endif /* WITH_DMALLOC */
+
+#endif  /* ! BISON_SYSTEM_H */