563 lines
16 KiB
C
563 lines
16 KiB
C
/* Miscellaneous global declarations and portability cruft for GNU Make.
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
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2002 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Make is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Make; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* We use <config.h> instead of "config.h" so that a compilation
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using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
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(which it would do because make.h was found in $srcdir). */
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#include <config.h>
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#undef HAVE_CONFIG_H
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#define HAVE_CONFIG_H 1
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/* AIX requires this to be the first thing in the file. */
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#ifndef __GNUC__
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# if HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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#pragma alloca
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# else
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# ifndef alloca /* predefined by HP cc +Olibcalls */
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char *alloca ();
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# endif
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# endif
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# endif
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#endif
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/* Use prototypes if available. */
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#if defined (__cplusplus) || (defined (__STDC__) && __STDC__)
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# undef PARAMS
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# define PARAMS(protos) protos
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#else /* Not C++ or ANSI C. */
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# undef PARAMS
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# define PARAMS(protos) ()
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#endif /* C++ or ANSI C. */
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/* Specify we want GNU source code. This must be defined before any
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system headers are included. */
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#define _GNU_SOURCE 1
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#ifdef CRAY
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/* This must happen before #include <signal.h> so
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that the declaration therein is changed. */
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# define signal bsdsignal
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#endif
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/* If we're compiling for the dmalloc debugger, turn off string inlining. */
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#if defined(HAVE_DMALLOC_H) && defined(__GNUC__)
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# define __NO_STRING_INLINES
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <signal.h>
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#include <stdio.h>
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#include <ctype.h>
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#ifdef HAVE_SYS_TIMEB_H
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/* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs
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unless <sys/timeb.h> has been included first. Does every system have a
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<sys/timeb.h>? If any does not, configure should check for it. */
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# include <sys/timeb.h>
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#endif
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#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# if HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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#ifndef isblank
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# define isblank(c) ((c) == ' ' || (c) == '\t')
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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/* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get
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POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */
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# if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS)
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# define POSIX 1
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# endif
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#endif
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/* Some systems define _POSIX_VERSION but are not really POSIX.1. */
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#if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386)))
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# undef POSIX
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#endif
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#if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE)
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# define POSIX 1
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#endif
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#ifndef RETSIGTYPE
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# define RETSIGTYPE void
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#endif
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#ifndef sigmask
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# define sigmask(sig) (1 << ((sig) - 1))
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#endif
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#ifndef HAVE_SA_RESTART
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# define SA_RESTART 0
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#endif
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#ifdef HAVE_LIMITS_H
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# include <limits.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifndef PATH_MAX
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# ifndef POSIX
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# define PATH_MAX MAXPATHLEN
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# endif
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#endif
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#ifndef MAXPATHLEN
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# define MAXPATHLEN 1024
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#endif
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#ifdef PATH_MAX
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# define GET_PATH_MAX PATH_MAX
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# define PATH_VAR(var) char var[PATH_MAX]
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#else
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# define NEED_GET_PATH_MAX 1
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# define GET_PATH_MAX (get_path_max ())
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# define PATH_VAR(var) char *var = (char *) alloca (GET_PATH_MAX)
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extern unsigned int get_path_max PARAMS ((void));
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#endif
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#ifndef CHAR_BIT
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# define CHAR_BIT 8
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#endif
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/* Nonzero if the integer type T is signed. */
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#define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0)
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/* The minimum and maximum values for the integer type T.
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Use ~ (t) 0, not -1, for portability to 1's complement hosts. */
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#define INTEGER_TYPE_MINIMUM(t) \
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(! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))
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#define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t))
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#ifndef CHAR_MAX
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# define CHAR_MAX INTEGER_TYPE_MAXIMUM (char)
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#endif
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#ifdef STAT_MACROS_BROKEN
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# ifdef S_ISREG
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# undef S_ISREG
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# endif
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# ifdef S_ISDIR
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# undef S_ISDIR
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# endif
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#endif /* STAT_MACROS_BROKEN. */
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#ifndef S_ISREG
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# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
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#endif
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#ifndef S_ISDIR
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# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
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#endif
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#ifdef VMS
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# include <types.h>
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# include <unixlib.h>
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# include <unixio.h>
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# include <perror.h>
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/* Needed to use alloca on VMS. */
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# include <builtins.h>
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#endif
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#ifndef __attribute__
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/* This feature is available in gcc versions 2.5 and later. */
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# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
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# define __attribute__(x)
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# endif
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/* The __-protected variants of `format' and `printf' attributes
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are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
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# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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# define __format__ format
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# define __printf__ printf
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# endif
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#endif
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#if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__)
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# include <stdlib.h>
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# include <string.h>
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# define ANSI_STRING 1
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#else /* No standard headers. */
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# ifdef HAVE_STRING_H
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# include <string.h>
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# define ANSI_STRING 1
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# else
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# include <strings.h>
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# endif
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# ifdef HAVE_MEMORY_H
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# include <memory.h>
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# endif
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# else
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extern char *malloc PARAMS ((int));
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extern char *realloc PARAMS ((char *, int));
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extern void free PARAMS ((char *));
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extern void abort PARAMS ((void)) __attribute__ ((noreturn));
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extern void exit PARAMS ((int)) __attribute__ ((noreturn));
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# endif /* HAVE_STDLIB_H. */
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#endif /* Standard headers. */
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/* These should be in stdlib.h. Make sure we have them. */
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#ifndef EXIT_SUCCESS
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# define EXIT_SUCCESS 0
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#endif
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#ifndef EXIT_FAILURE
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# define EXIT_FAILURE 0
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#endif
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#ifdef ANSI_STRING
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# ifndef bcmp
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# define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
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# endif
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# ifndef bzero
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# define bzero(s, n) memset ((s), 0, (n))
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# endif
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# if defined(HAVE_MEMMOVE) && !defined(bcopy)
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# define bcopy(s, d, n) memmove ((d), (s), (n))
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# endif
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#else /* Not ANSI_STRING. */
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# ifndef HAVE_STRCHR
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# define strchr(s, c) index((s), (c))
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# define strrchr(s, c) rindex((s), (c))
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# endif
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# ifndef bcmp
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extern int bcmp PARAMS ((const char *, const char *, int));
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# endif
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# ifndef bzero
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extern void bzero PARAMS ((char *, int));
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#endif
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# ifndef bcopy
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extern void bcopy PARAMS ((const char *b1, char *b2, int));
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# endif
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#endif /* ANSI_STRING. */
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#undef ANSI_STRING
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/* SCO Xenix has a buggy macro definition in <string.h>. */
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#undef strerror
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#if !defined(ANSI_STRING) && !defined(__DECC)
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extern char *strerror PARAMS ((int errnum));
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#endif
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#if HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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#define FILE_TIMESTAMP uintmax_t
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#if !defined(HAVE_STRSIGNAL)
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extern char *strsignal PARAMS ((int signum));
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#endif
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/* ISDIGIT offers the following features:
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- Its arg may be any int or unsigned int; it need not be an unsigned char.
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- It's guaranteed to evaluate its argument exactly once.
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NOTE! Make relies on this behavior, don't change it!
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- It's typically faster.
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POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
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only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless
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it's important to use the locale's definition of `digit' even when the
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host does not conform to POSIX. */
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#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
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#ifndef iAPX286
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# define streq(a, b) \
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((a) == (b) || \
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(*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
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# ifdef HAVE_CASE_INSENSITIVE_FS
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/* This is only used on Windows/DOS platforms, so we assume strcmpi(). */
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# define strieq(a, b) \
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((a) == (b) \
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|| (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \
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&& (*(a) == '\0' || !strcmpi ((a) + 1, (b) + 1))))
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# else
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# define strieq(a, b) streq(a, b)
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# endif
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#else
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/* Buggy compiler can't handle this. */
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# define streq(a, b) (strcmp ((a), (b)) == 0)
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# define strieq(a, b) (strcmp ((a), (b)) == 0)
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#endif
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#define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0)
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#ifdef VMS
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extern int strcmpi (const char *,const char *);
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#endif
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#if defined(__GNUC__) || defined(ENUM_BITFIELDS)
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# define ENUM_BITFIELD(bits) :bits
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#else
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# define ENUM_BITFIELD(bits)
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#endif
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/* Handle gettext and locales. */
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#if HAVE_LOCALE_H
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# include <locale.h>
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#else
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# define setlocale(category, locale)
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#endif
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#include <gettext.h>
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#define _(msgid) gettext (msgid)
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#define N_(msgid) gettext_noop (msgid)
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#define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
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/* Handle other OSs. */
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#if defined(__MSDOS__) || defined(WINDOWS32)
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# define PATH_SEPARATOR_CHAR ';'
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#else
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# if defined(VMS)
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# define PATH_SEPARATOR_CHAR ','
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# else
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# define PATH_SEPARATOR_CHAR ':'
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# endif
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#endif
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#ifdef WINDOWS32
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# include <fcntl.h>
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# include <malloc.h>
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# define pipe(p) _pipe(p, 512, O_BINARY)
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# define kill(pid,sig) w32_kill(pid,sig)
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extern void sync_Path_environment(void);
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extern int kill(int pid, int sig);
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extern int safe_stat(char *file, struct stat *sb);
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extern char *end_of_token_w32(char *s, char stopchar);
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extern int find_and_set_default_shell(char *token);
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/* indicates whether or not we have Bourne shell */
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extern int no_default_sh_exe;
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/* is default_shell unixy? */
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extern int unixy_shell;
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#endif /* WINDOWS32 */
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struct floc
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{
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char *filenm;
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unsigned long lineno;
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};
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#define NILF ((struct floc *)0)
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#define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1)
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/* Fancy processing for variadic functions in both ANSI and pre-ANSI
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compilers. */
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#if defined __STDC__ && __STDC__
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extern void message (int prefix, const char *fmt, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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extern void error (const struct floc *flocp, const char *fmt, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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extern void fatal (const struct floc *flocp, const char *fmt, ...)
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__attribute__ ((noreturn, __format__ (__printf__, 2, 3)));
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#else
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extern void message ();
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extern void error ();
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extern void fatal ();
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#endif
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extern void die PARAMS ((int)) __attribute__ ((noreturn));
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extern void log_working_directory PARAMS ((int));
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extern void pfatal_with_name PARAMS ((const char *)) __attribute__ ((noreturn));
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extern void perror_with_name PARAMS ((const char *, const char *));
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extern char *savestring PARAMS ((const char *, unsigned int));
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extern char *concat PARAMS ((const char *, const char *, const char *));
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extern char *xmalloc PARAMS ((unsigned int));
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extern char *xrealloc PARAMS ((char *, unsigned int));
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extern char *xstrdup PARAMS ((const char *));
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extern char *find_next_token PARAMS ((char **, unsigned int *));
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extern char *next_token PARAMS ((const char *));
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extern char *end_of_token PARAMS ((char *));
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extern void collapse_continuations PARAMS ((char *));
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extern void remove_comments PARAMS((char *));
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extern char *sindex PARAMS ((const char *, unsigned int, \
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const char *, unsigned int));
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extern char *lindex PARAMS ((const char *, const char *, int));
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extern int alpha_compare PARAMS ((const void *, const void *));
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extern void print_spaces PARAMS ((unsigned int));
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extern char *find_char_unquote PARAMS ((char *, int, int, int));
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extern char *find_percent PARAMS ((char *));
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extern FILE *open_tmpfile PARAMS ((char **, const char *));
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#ifndef NO_ARCHIVES
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extern int ar_name PARAMS ((char *));
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extern void ar_parse_name PARAMS ((char *, char **, char **));
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extern int ar_touch PARAMS ((char *));
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extern time_t ar_member_date PARAMS ((char *));
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#endif
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extern int dir_file_exists_p PARAMS ((char *, char *));
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extern int file_exists_p PARAMS ((char *));
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extern int file_impossible_p PARAMS ((char *));
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extern void file_impossible PARAMS ((char *));
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extern char *dir_name PARAMS ((char *));
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extern void hash_init_directories PARAMS ((void));
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extern void define_default_variables PARAMS ((void));
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extern void set_default_suffixes PARAMS ((void));
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extern void install_default_suffix_rules PARAMS ((void));
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extern void install_default_implicit_rules PARAMS ((void));
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extern void build_vpath_lists PARAMS ((void));
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extern void construct_vpath_list PARAMS ((char *pattern, char *dirpath));
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extern int vpath_search PARAMS ((char **file, FILE_TIMESTAMP *mtime_ptr));
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extern int gpath_search PARAMS ((char *file, int len));
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extern void construct_include_path PARAMS ((char **arg_dirs));
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extern void user_access PARAMS ((void));
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extern void make_access PARAMS ((void));
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extern void child_access PARAMS ((void));
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#ifdef HAVE_VFORK_H
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# include <vfork.h>
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#endif
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/* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
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because such systems often declare them in header files anyway. */
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#if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32)
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extern long int atol ();
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# ifndef VMS
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extern long int lseek ();
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# endif
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#endif /* Not GNU C library or POSIX. */
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#ifdef HAVE_GETCWD
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# if !defined(VMS) && !defined(__DECC)
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extern char *getcwd ();
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#endif
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#else
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extern char *getwd ();
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# define getcwd(buf, len) getwd (buf)
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#endif
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extern const struct floc *reading_file;
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extern char **environ;
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extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
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extern int print_data_base_flag, question_flag, touch_flag, always_make_flag;
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extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag;
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extern int print_version_flag, print_directory_flag;
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extern int warn_undefined_variables_flag, posix_pedantic, not_parallel;
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extern int clock_skew_detected;
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/* can we run commands via 'sh -c xxx' or must we use batch files? */
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extern int batch_mode_shell;
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extern unsigned int job_slots;
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extern int job_fds[2];
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extern int job_rfd;
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#ifndef NO_FLOAT
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extern double max_load_average;
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||
#else
|
||
extern int max_load_average;
|
||
#endif
|
||
|
||
extern char *program;
|
||
extern char *starting_directory;
|
||
extern unsigned int makelevel;
|
||
extern char *version_string, *remote_description;
|
||
|
||
extern unsigned int commands_started;
|
||
|
||
extern int handling_fatal_signal;
|
||
|
||
|
||
#ifndef MIN
|
||
#define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
|
||
#endif
|
||
#ifndef MAX
|
||
#define MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
|
||
#endif
|
||
|
||
#ifdef VMS
|
||
# define MAKE_SUCCESS 1
|
||
# define MAKE_TROUBLE 2
|
||
# define MAKE_FAILURE 3
|
||
#else
|
||
# define MAKE_SUCCESS 0
|
||
# define MAKE_TROUBLE 1
|
||
# define MAKE_FAILURE 2
|
||
#endif
|
||
|
||
/* Set up heap debugging library dmalloc. */
|
||
|
||
#ifdef HAVE_DMALLOC_H
|
||
#include <dmalloc.h>
|
||
#endif
|
||
|
||
|
||
/* If we have broken SA_RESTART support, then wrap stat() and readdir() with
|
||
versions that handle EINTR. Note that there are still plenty of system
|
||
calls that can fail with EINTR but this, reportedly, gets the vast
|
||
majority of failure cases. If you still experience failures you'll need
|
||
to either get a system where SA_RESTART works, or you need to avoid -j. */
|
||
|
||
#ifdef HAVE_BROKEN_RESTART
|
||
|
||
/* Here we make an assumption that a system with a broken SA_RESTART has
|
||
dirent.h. Right now the only system I know of in this category is PTX, and
|
||
it does have dirent.h.
|
||
*/
|
||
#include <dirent.h>
|
||
|
||
#define stat(_f,_b) atomic_stat ((_f), (_b))
|
||
#define readdir(_d) atomic_readdir (_d)
|
||
|
||
extern int atomic_stat PARAMS ((const char *file, struct stat *buf));
|
||
extern struct dirent *atomic_readdir PARAMS ((DIR *dir));
|
||
|
||
#endif
|