Officially drop support for building Bison with K&R C,

[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index fbb298bcff7873d50f635f37abafd08197cbab33..18b1377992e7b102fcc98f7f7f14a58d0930bf2c 100644 (file)
--- a/src/system.h
+++ b/src/system.h
@@ -1,5 +1,5 @@
 /* system-dependent definitions for Bison.
 /* system-dependent definitions for Bison.

-   Copyright 2000 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
 
    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


@@ -22,22 +22,41 @@
 # include <config.h>
 #endif
 
 # 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>
 
 #include <stdio.h>
 
 #include <assert.h>
 

-#ifdef MSDOS
-# include <io.h>
+#if HAVE_STDLIB_H
+# include <stdlib.h>

 #endif
 
 #endif
 

-#ifdef _MSC_VER
-# include <stdlib.h>
-# include <process.h>
-# define getpid _getpid
+/* 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
 
 #endif
 

-#if HAVE_STDLIB_H
-# include <stdlib.h>
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0

 #endif
 
 #if HAVE_UNISTD_H
 #endif
 
 #if HAVE_UNISTD_H


@@ -50,46 +69,104 @@
 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
 #  include <memory.h>
 # endif /* not STDC_HEADERS and HAVE_MEMORY_H */
 # 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

 #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 */
 
 #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 */
 

-#if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
-# include <ctype.h>
-#endif
-

 #include <errno.h>
 #ifndef errno
 extern int errno;
 #endif
 
 #include <errno.h>
 #ifndef errno
 extern int errno;
 #endif
 

-#if PROTOTYPES
-# define PARAMS(p) p
-#else
-# define PARAMS(p) ()
+#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
 
 #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.  */
 /*-----------------.
 | GCC extensions.  |
 `-----------------*/
 
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */

-# if __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
 #  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.  */
 /* 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
 
 #endif
 

+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif

 
 /*------.
 | NLS.  |
 
 /*------.
 | NLS.  |


@@ -102,17 +179,9 @@ extern int errno;
 # define setlocale(Category, Locale)
 #endif
 
 # define setlocale(Category, Locale)
 #endif
 

-#ifdef ENABLE_NLS
-# include <libintl.h>
-# define _(Text) gettext (Text)
-#else
-# undef bindtextdomain
-# define bindtextdomain(Domain, Directory)
-# undef textdomain
-# define textdomain(Domain)
-# define _(Text) Text
-#endif
-#define N_(Text) Text
+#include "gettext.h"
+#define _(Msgid)  gettext (Msgid)
+#define N_(Msgid) (Msgid)

 
 
 /*-------------------------------.
 
 
 /*-------------------------------.


@@ -123,8 +192,6 @@ extern int errno;
 # define LOCALEDIR "/usr/local/share/locale"
 #endif
 
 # define LOCALEDIR "/usr/local/share/locale"
 #endif
 

-#endif  /* BISON_SYSTEM_H */
-

 
 /*-----------.
 | Booleans.  |
 
 /*-----------.
 | Booleans.  |


@@ -141,12 +208,12 @@ typedef int bool;
 | 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_grow_literal_string(Obs, Str) \
-  obstack_grow (Obs, Str, sizeof (Str) - 1)
+#define obstack_sgrow(Obs, Str) \
+  obstack_grow (Obs, Str, strlen (Str))

 
 #define obstack_fgrow1(Obs, Format, Arg1)      \
 do {                                           \
 
 #define obstack_fgrow1(Obs, Format, Arg1)      \
 do {                                           \


@@ -169,71 +236,63 @@ do {                                                      \
   obstack_grow (Obs, buf, strlen (buf));               \
 } while (0)
 
   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)

 
 

-/*---------------------------------.
-| 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       BITS_PER_WORD   16
-# define MAXTABLE      16383
-#else
-# define       BITS_PER_WORD   32
-# define MAXTABLE      32767
-#endif
-
-#define        WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
-#define        SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
-#define RESETBIT(x, i) ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
-#define BITISSET(x, i) (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)

 
 
 
 

-/* 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"
 
 #ifdef VMS
   /* VMS. */
 # define EXT_TAB       "_tab"
 # define EXT_OUTPUT    ".output"

-# define EXT_STYPE_H   "_stype.h"
-# define EXT_GUARD_C   "_guard.c"

 #else /* ! VMS */
 # ifdef MSDOS
    /* MS DOS. */
 #  define EXT_TAB      "_tab"
 #  define EXT_OUTPUT   ".out"
 #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"
 # else /* ! MSDOS */
   /* Standard. */
 #  define EXT_TAB      ".tab"
 #  define EXT_OUTPUT   ".output"

-#  define EXT_STYPE_H  ".stype.h"
-#  define EXT_GUARD_C  ".guard.c"

 # endif /* ! MSDOS */
 #endif /* ! VMS */
 
 # endif /* ! MSDOS */
 #endif /* ! VMS */
 

-#if defined (VMS) & !defined (__VMS_POSIX)
-# ifndef BISON_SIMPLE
-#  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
-# endif
-# ifndef BISON_HAIRY
-#  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
-# endif
+#ifndef DEFAULT_TMPDIR
+# define DEFAULT_TMPDIR "/tmp"

 #endif
 
 #endif
 

-#if defined (_MSC_VER)
-# ifndef BISON_SIMPLE
-#  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
-# endif
-# ifndef BISON_HAIRY
-#  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
-# endif
-#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 */