Various DJGGP specific issues in /djgpp.

[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index 002fa810ba70a22b2bfd8bd4606e7555a7e06e86..63157904fb69f6f4aedea4f3094f3e8f41c0c161 100644 (file)
--- a/src/system.h
+++ b/src/system.h
@@ -1,5 +1,7 @@
-/* system-dependent definitions for Bison.
-   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+/* System-dependent definitions for Bison.
+
+   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 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
 
    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


@@ -13,126 +15,85 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
 
    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.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

 
 #ifndef BISON_SYSTEM_H
 #define BISON_SYSTEM_H
 
 
 #ifndef BISON_SYSTEM_H
 #define BISON_SYSTEM_H
 

-#ifdef HAVE_CONFIG_H
-# 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
+/* flex 2.5.31 gratutiously defines macros like INT8_MIN.  But this
+   runs afoul of pre-C99 compilers that have <inttypes.h> or
+   <stdint.h>, which are included below if available.  It also runs
+   afoul of pre-C99 compilers that define these macros in <limits.h>.  */
+#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901
+# undef INT8_MIN
+# undef INT16_MIN
+# undef INT32_MIN
+# undef INT8_MAX
+# undef INT16_MAX
+# undef UINT8_MAX
+# undef INT32_MAX
+# undef UINT16_MAX
+# undef UINT32_MAX

 #endif
 
 #endif
 

-#include <stdio.h>
-
-#include <assert.h>
-
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>

 
 

-/* 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
+#include "unlocked-io.h"

 
 

-#ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>

 #endif
 
 #if HAVE_UNISTD_H
 # include <unistd.h>
 #endif
 
 #endif
 
 #if HAVE_UNISTD_H
 # include <unistd.h>
 #endif
 

-#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
-# include <string.h>
-/* 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 */
-#else /* not STDC_HEADERS and not HAVE_STRING_H */
-# include <strings.h>
-/* memory.h and strings.h conflict on some systems.  */
-#endif /* not STDC_HEADERS and not HAVE_STRING_H */
-
-#include <errno.h>
-#ifndef errno
-extern int errno;
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDINT_H
+# include <stdint.h>

 #endif
 
 #endif
 

-#include <limits.h>
-
-# include "xalloc.h"
-
-/* From xstrndup.c.  */
-char *xstrndup (const char *s, size_t n);
-
-
-/*----------------.
-| Using timevar.  |
-`----------------*/
+#if ! HAVE_UINTPTR_T
+/* This isn't perfect, but it's good enough for Bison, which needs
+   only to hash pointers.  */
+typedef size_t uintptr_t;
+#endif

 
 

-#include "timevar.h"
-extern int time_report;
+#include <verify.h>
+#include <xalloc.h>

 
 
 /*---------------------.
 | Missing prototypes.  |
 `---------------------*/
 
 
 
 /*---------------------.
 | Missing prototypes.  |
 `---------------------*/
 

-#if !HAVE_DECL_STPCPY
-char *stpcpy (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 (const char *s, size_t maxlen);
-#endif
-
-#if !HAVE_DECL_MEMCHR
-void *memchr (const void *s, int c, size_t n);
-#endif
-
-#if !HAVE_DECL_MEMRCHR
-void *memrchr (const void *s, int c, size_t n);
-#endif
+#include <stpcpy.h>

 
 

+/* From lib/basename.c. */
+char *base_name (char const *name);

 
 
 /*-----------------.
 | GCC extensions.  |
 `-----------------*/
 
 
 
 /*-----------------.
 | GCC extensions.  |
 `-----------------*/
 

+/* Use this to suppress gcc's `...may be used before initialized'
+   warnings.  */
+#ifdef lint
+# define IF_LINT(Code) Code
+#else
+# define IF_LINT(Code) /* empty */
+#endif
+

 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
 #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__
+# if (! defined __GNUC__ || __GNUC__ < 2 \
+      || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)

 #  define __attribute__(Spec) /* empty */
 # endif
 #endif
 #  define __attribute__(Spec) /* empty */
 # endif
 #endif


@@ -156,14 +117,9 @@ void *memrchr (const void *s, int c, size_t n);
 | NLS.  |
 `------*/
 
 | NLS.  |
 `------*/
 

-#ifdef HAVE_LOCALE_H
-# include <locale.h>
-#endif
-#ifndef HAVE_SETLOCALE
-# define setlocale(Category, Locale)
-#endif
+#include <locale.h>

 
 

-#include "gettext.h"
+#include <gettext.h>

 #define _(Msgid)  gettext (Msgid)
 #define N_(Msgid) (Msgid)
 
 #define _(Msgid)  gettext (Msgid)
 #define N_(Msgid) (Msgid)
 


@@ -181,20 +137,16 @@ void *memrchr (const void *s, int c, size_t n);
 | Booleans.  |
 `-----------*/
 
 | Booleans.  |
 `-----------*/
 

-#ifndef TRUE
-# define TRUE  (1)
-# define FALSE (0)
-#endif
-typedef int bool;
+#include <stdbool.h>

 
 
 /*-----------.
 | Obstacks.  |
 `-----------*/
 
 
 
 /*-----------.
 | Obstacks.  |
 `-----------*/
 

-# define obstack_chunk_alloc xmalloc
-# define obstack_chunk_free  free
-# include "obstack.h"
+#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_sgrow(Obs, Str) \
   obstack_grow (Obs, Str, strlen (Str))


@@ -233,21 +185,13 @@ do {                                                              \
 | Extensions to use for the output files.  |
 `-----------------------------------------*/
 
 | 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 OUTPUT_EXT
+# define OUTPUT_EXT ".output"
+#endif
+
+#ifndef TAB_EXT
+# define TAB_EXT ".tab"
+#endif

 
 #ifndef DEFAULT_TMPDIR
 # define DEFAULT_TMPDIR "/tmp"
 
 #ifndef DEFAULT_TMPDIR
 # define DEFAULT_TMPDIR "/tmp"


@@ -265,11 +209,16 @@ do {                                              \
   for (_node = List; _node; _node = _next)     \
     {                                          \
       _next = _node->next;                     \
   for (_node = List; _node; _node = _next)     \
     {                                          \
       _next = _node->next;                     \

-      XFREE (_node);                           \
+      free (_node);                            \

     }                                          \
 } while (0)
 
 
     }                                          \
 } while (0)
 
 

+/* Assertions.  <assert.h>'s assertions are too heavyweight, and can
+   be disabled too easily, so implement it separately here.  */
+#define assert(x) ((void) ((x) || (abort (), 0)))
+
+

 /*---------------------------------------------.
 | Debugging memory allocation (must be last).  |
 `---------------------------------------------*/
 /*---------------------------------------------.
 | Debugging memory allocation (must be last).  |
 `---------------------------------------------*/