| 1 | /* Miscellaneous global declarations and portability cruft for GNU Make.
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| 2 | Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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| 3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
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| 4 | 2010 Free Software Foundation, Inc.
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| 5 | This file is part of GNU Make.
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| 6 |
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| 7 | GNU Make is free software; you can redistribute it and/or modify it under the
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| 8 | terms of the GNU General Public License as published by the Free Software
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| 9 | Foundation; either version 3 of the License, or (at your option) any later
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| 10 | version.
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| 11 |
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| 12 | GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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| 14 | A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License along with
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| 17 | this program. If not, see <http://www.gnu.org/licenses/>. */
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| 18 |
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| 19 | /* We use <config.h> instead of "config.h" so that a compilation
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| 20 | using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
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| 21 | (which it would do because make.h was found in $srcdir). */
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| 22 | #include <config.h>
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| 23 | #undef HAVE_CONFIG_H
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| 24 | #define HAVE_CONFIG_H 1
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| 25 |
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| 26 | /* Specify we want GNU source code. This must be defined before any
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| 27 | system headers are included. */
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| 28 |
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| 29 | #define _GNU_SOURCE 1
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| 30 |
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| 31 | /* AIX requires this to be the first thing in the file. */
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| 32 | #if HAVE_ALLOCA_H
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| 33 | # include <alloca.h>
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| 34 | #else
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| 35 | # ifdef _AIX
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| 36 | #pragma alloca
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| 37 | # else
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| 38 | # if !defined(__GNUC__) && !defined(WINDOWS32)
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| 39 | # ifndef alloca /* predefined by HP cc +Olibcalls */
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| 40 | char *alloca ();
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| 41 | # endif
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| 42 | # endif
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| 43 | # endif
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| 44 | #endif
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| 45 |
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| 46 |
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| 47 | #ifdef CRAY
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| 48 | /* This must happen before #include <signal.h> so
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| 49 | that the declaration therein is changed. */
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| 50 | # define signal bsdsignal
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| 51 | #endif
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| 52 |
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| 53 | /* If we're compiling for the dmalloc debugger, turn off string inlining. */
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| 54 | #if defined(HAVE_DMALLOC_H) && defined(__GNUC__)
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| 55 | # define __NO_STRING_INLINES
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| 56 | #endif
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| 57 |
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| 58 | #include <sys/types.h>
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| 59 | #include <sys/stat.h>
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| 60 | #include <signal.h>
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| 61 | #include <stdio.h>
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| 62 | #include <ctype.h>
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| 63 | #ifdef HAVE_SYS_TIMEB_H
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| 64 | /* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs
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| 65 | unless <sys/timeb.h> has been included first. Does every system have a
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| 66 | <sys/timeb.h>? If any does not, configure should check for it. */
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| 67 | # include <sys/timeb.h>
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| 68 | #endif
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| 69 |
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| 70 | #if TIME_WITH_SYS_TIME
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| 71 | # include <sys/time.h>
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| 72 | # include <time.h>
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| 73 | #else
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| 74 | # if HAVE_SYS_TIME_H
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| 75 | # include <sys/time.h>
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| 76 | # else
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| 77 | # include <time.h>
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| 78 | # endif
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| 79 | #endif
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| 80 |
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| 81 | #include <errno.h>
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| 82 |
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| 83 | #ifndef errno
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| 84 | extern int errno;
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| 85 | #endif
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| 86 |
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| 87 | #ifndef isblank
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| 88 | # define isblank(c) ((c) == ' ' || (c) == '\t')
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| 89 | #endif
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| 90 |
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| 91 | #ifdef HAVE_UNISTD_H
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| 92 | # include <unistd.h>
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| 93 | /* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get
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| 94 | POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */
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| 95 | # if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS)
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| 96 | # define POSIX 1
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| 97 | # endif
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| 98 | #endif
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| 99 |
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| 100 | /* Some systems define _POSIX_VERSION but are not really POSIX.1. */
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| 101 | #if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386)))
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| 102 | # undef POSIX
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| 103 | #endif
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| 104 |
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| 105 | #if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE)
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| 106 | # define POSIX 1
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| 107 | #endif
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| 108 |
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| 109 | #ifndef RETSIGTYPE
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| 110 | # define RETSIGTYPE void
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| 111 | #endif
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| 112 |
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| 113 | #ifndef sigmask
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| 114 | # define sigmask(sig) (1 << ((sig) - 1))
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| 115 | #endif
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| 116 |
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| 117 | #ifndef HAVE_SA_RESTART
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| 118 | # define SA_RESTART 0
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| 119 | #endif
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| 120 |
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| 121 | #ifdef HAVE_LIMITS_H
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| 122 | # include <limits.h>
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| 123 | #endif
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| 124 | #ifdef HAVE_SYS_PARAM_H
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| 125 | # include <sys/param.h>
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| 126 | #endif
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| 127 |
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| 128 | #ifndef PATH_MAX
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| 129 | # ifndef POSIX
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| 130 | # define PATH_MAX MAXPATHLEN
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| 131 | # endif
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| 132 | #endif
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| 133 | #ifndef MAXPATHLEN
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| 134 | # define MAXPATHLEN 1024
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| 135 | #endif
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| 136 |
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| 137 | #ifdef PATH_MAX
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| 138 | # define GET_PATH_MAX PATH_MAX
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| 139 | # define PATH_VAR(var) char var[PATH_MAX]
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| 140 | #else
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| 141 | # define NEED_GET_PATH_MAX 1
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| 142 | # define GET_PATH_MAX (get_path_max ())
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| 143 | # define PATH_VAR(var) char *var = alloca (GET_PATH_MAX)
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| 144 | unsigned int get_path_max (void);
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| 145 | #endif
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| 146 |
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| 147 | #ifndef CHAR_BIT
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| 148 | # define CHAR_BIT 8
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| 149 | #endif
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| 150 |
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| 151 | /* Nonzero if the integer type T is signed. */
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| 152 | #define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0)
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| 153 |
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| 154 | /* The minimum and maximum values for the integer type T.
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| 155 | Use ~ (t) 0, not -1, for portability to 1's complement hosts. */
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| 156 | #define INTEGER_TYPE_MINIMUM(t) \
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| 157 | (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))
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| 158 | #define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t))
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| 159 |
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| 160 | #ifndef CHAR_MAX
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| 161 | # define CHAR_MAX INTEGER_TYPE_MAXIMUM (char)
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| 162 | #endif
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| 163 |
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| 164 | #ifdef STAT_MACROS_BROKEN
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| 165 | # ifdef S_ISREG
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| 166 | # undef S_ISREG
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| 167 | # endif
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| 168 | # ifdef S_ISDIR
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| 169 | # undef S_ISDIR
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| 170 | # endif
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| 171 | #endif /* STAT_MACROS_BROKEN. */
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| 172 |
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| 173 | #ifndef S_ISREG
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| 174 | # define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
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| 175 | #endif
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| 176 | #ifndef S_ISDIR
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| 177 | # define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
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| 178 | #endif
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| 179 |
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| 180 | #ifdef VMS
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| 181 | # include <types.h>
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| 182 | # include <unixlib.h>
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| 183 | # include <unixio.h>
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| 184 | # include <perror.h>
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| 185 | /* Needed to use alloca on VMS. */
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| 186 | # include <builtins.h>
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| 187 | #endif
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| 188 |
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| 189 | #ifndef __attribute__
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| 190 | /* This feature is available in gcc versions 2.5 and later. */
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| 191 | # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
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| 192 | # define __attribute__(x)
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| 193 | # endif
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| 194 | /* The __-protected variants of `format' and `printf' attributes
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| 195 | are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
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| 196 | # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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| 197 | # define __format__ format
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| 198 | # define __printf__ printf
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| 199 | # endif
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| 200 | #endif
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| 201 | #define UNUSED __attribute__ ((unused))
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| 202 |
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| 203 | #if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__)
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| 204 | # include <stdlib.h>
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| 205 | # include <string.h>
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| 206 | # define ANSI_STRING 1
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| 207 | #else /* No standard headers. */
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| 208 | # ifdef HAVE_STRING_H
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| 209 | # include <string.h>
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| 210 | # define ANSI_STRING 1
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| 211 | # else
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| 212 | # include <strings.h>
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| 213 | # endif
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| 214 | # ifdef HAVE_MEMORY_H
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| 215 | # include <memory.h>
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| 216 | # endif
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| 217 | # ifdef HAVE_STDLIB_H
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| 218 | # include <stdlib.h>
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| 219 | # else
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| 220 | void *malloc (int);
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| 221 | void *realloc (void *, int);
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| 222 | void free (void *);
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| 223 |
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| 224 | void abort (void) __attribute__ ((noreturn));
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| 225 | void exit (int) __attribute__ ((noreturn));
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| 226 | # endif /* HAVE_STDLIB_H. */
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| 227 |
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| 228 | #endif /* Standard headers. */
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| 229 |
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| 230 | /* These should be in stdlib.h. Make sure we have them. */
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| 231 | #ifndef EXIT_SUCCESS
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| 232 | # define EXIT_SUCCESS 0
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| 233 | #endif
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| 234 | #ifndef EXIT_FAILURE
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| 235 | # define EXIT_FAILURE 1
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| 236 | #endif
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| 237 |
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| 238 | #ifndef ANSI_STRING
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| 239 |
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| 240 | /* SCO Xenix has a buggy macro definition in <string.h>. */
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| 241 | #undef strerror
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| 242 | #if !defined(__DECC)
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| 243 | char *strerror (int errnum);
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| 244 | #endif
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| 245 |
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| 246 | #endif /* !ANSI_STRING. */
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| 247 | #undef ANSI_STRING
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| 248 |
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| 249 | #if HAVE_INTTYPES_H
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| 250 | # include <inttypes.h>
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| 251 | #endif
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| 252 | #define FILE_TIMESTAMP uintmax_t
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| 253 |
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| 254 | #if !defined(HAVE_STRSIGNAL)
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| 255 | char *strsignal (int signum);
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| 256 | #endif
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| 257 |
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| 258 | /* ISDIGIT offers the following features:
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| 259 | - Its arg may be any int or unsigned int; it need not be an unsigned char.
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| 260 | - It's guaranteed to evaluate its argument exactly once.
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| 261 | NOTE! Make relies on this behavior, don't change it!
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| 262 | - It's typically faster.
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| 263 | POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
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| 264 | only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless
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| 265 | it's important to use the locale's definition of `digit' even when the
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| 266 | host does not conform to POSIX. */
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| 267 | #define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
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| 268 |
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| 269 | /* Test if two strings are equal. Is this worthwhile? Should be profiled. */
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| 270 | #define streq(a, b) \
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| 271 | ((a) == (b) || \
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| 272 | (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
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| 273 |
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| 274 | /* Test if two strings are equal, but match case-insensitively on systems
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| 275 | which have case-insensitive filesystems. Should only be used for
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| 276 | filenames! */
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| 277 | #ifdef HAVE_CASE_INSENSITIVE_FS
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| 278 | # define patheq(a, b) \
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| 279 | ((a) == (b) \
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| 280 | || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \
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| 281 | && (*(a) == '\0' || !strcasecmp ((a) + 1, (b) + 1))))
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| 282 | #else
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| 283 | # define patheq(a, b) streq(a, b)
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| 284 | #endif
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| 285 |
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| 286 | #define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0)
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| 287 |
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| 288 | #if defined(__GNUC__) || defined(ENUM_BITFIELDS)
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| 289 | # define ENUM_BITFIELD(bits) :bits
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| 290 | #else
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| 291 | # define ENUM_BITFIELD(bits)
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| 292 | #endif
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| 293 |
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| 294 | /* Handle gettext and locales. */
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| 295 |
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| 296 | #if HAVE_LOCALE_H
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| 297 | # include <locale.h>
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| 298 | #else
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| 299 | # define setlocale(category, locale)
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| 300 | #endif
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| 301 |
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| 302 | #include <gettext.h>
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| 303 |
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| 304 | #define _(msgid) gettext (msgid)
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| 305 | #define N_(msgid) gettext_noop (msgid)
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| 306 | #define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
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| 307 |
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| 308 | /* Handle other OSs. */
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| 309 | #ifndef PATH_SEPARATOR_CHAR
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| 310 | # if defined(HAVE_DOS_PATHS)
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| 311 | # define PATH_SEPARATOR_CHAR ';'
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| 312 | # elif defined(VMS)
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| 313 | # define PATH_SEPARATOR_CHAR ','
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| 314 | # else
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| 315 | # define PATH_SEPARATOR_CHAR ':'
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| 316 | # endif
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| 317 | #endif
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| 318 |
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| 319 | /* This is needed for getcwd() and chdir(), on some W32 systems. */
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| 320 | #if defined(HAVE_DIRECT_H)
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| 321 | # include <direct.h>
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| 322 | #endif
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| 323 |
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| 324 | #ifdef WINDOWS32
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| 325 | # include <fcntl.h>
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| 326 | # include <malloc.h>
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| 327 | # define pipe(_p) _pipe((_p), 512, O_BINARY)
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| 328 | # define kill(_pid,_sig) w32_kill((_pid),(_sig))
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| 329 |
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| 330 | void sync_Path_environment (void);
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| 331 | int w32_kill (pid_t pid, int sig);
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| 332 | char *end_of_token_w32 (const char *s, char stopchar);
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| 333 | int find_and_set_default_shell (const char *token);
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| 334 |
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| 335 | /* indicates whether or not we have Bourne shell */
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| 336 | extern int no_default_sh_exe;
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| 337 |
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| 338 | /* is default_shell unixy? */
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| 339 | extern int unixy_shell;
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| 340 | #endif /* WINDOWS32 */
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| 341 |
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| 342 | #if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
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| 343 | # define SET_STACK_SIZE
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| 344 | #endif
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| 345 | #ifdef SET_STACK_SIZE
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| 346 | # include <sys/resource.h>
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| 347 | struct rlimit stack_limit;
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| 348 | #endif
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| 349 |
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| 350 | struct floc
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| 351 | {
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| 352 | const char *filenm;
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| 353 | unsigned long lineno;
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| 354 | };
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| 355 | #define NILF ((struct floc *)0)
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| 356 |
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| 357 | #define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1)
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| 358 |
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| 359 | |
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| 360 |
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| 361 | /* We have to have stdarg.h or varargs.h AND v*printf or doprnt to use
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| 362 | variadic versions of these functions. */
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| 363 |
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| 364 | #if HAVE_STDARG_H || HAVE_VARARGS_H
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| 365 | # if HAVE_VPRINTF || HAVE_DOPRNT
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| 366 | # define USE_VARIADIC 1
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| 367 | # endif
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| 368 | #endif
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| 369 |
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| 370 | #if HAVE_ANSI_COMPILER && USE_VARIADIC && HAVE_STDARG_H
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| 371 | const char *concat (unsigned int, ...);
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| 372 | void message (int prefix, const char *fmt, ...)
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| 373 | __attribute__ ((__format__ (__printf__, 2, 3)));
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| 374 | void error (const struct floc *flocp, const char *fmt, ...)
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| 375 | __attribute__ ((__format__ (__printf__, 2, 3)));
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| 376 | void fatal (const struct floc *flocp, const char *fmt, ...)
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| 377 | __attribute__ ((noreturn, __format__ (__printf__, 2, 3)));
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| 378 | #else
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| 379 | const char *concat ();
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| 380 | void message ();
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| 381 | void error ();
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| 382 | void fatal ();
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| 383 | #endif
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| 384 |
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| 385 | void die (int) __attribute__ ((noreturn));
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| 386 | void log_working_directory (int);
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| 387 | void pfatal_with_name (const char *) __attribute__ ((noreturn));
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| 388 | void perror_with_name (const char *, const char *);
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| 389 | void *xmalloc (unsigned int);
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| 390 | void *xcalloc (unsigned int);
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| 391 | void *xrealloc (void *, unsigned int);
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| 392 | char *xstrdup (const char *);
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| 393 | char *xstrndup (const char *, unsigned int);
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| 394 | char *find_next_token (const char **, unsigned int *);
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| 395 | char *next_token (const char *);
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| 396 | char *end_of_token (const char *);
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| 397 | void collapse_continuations (char *);
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| 398 | char *lindex (const char *, const char *, int);
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| 399 | int alpha_compare (const void *, const void *);
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| 400 | void print_spaces (unsigned int);
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| 401 | char *find_percent (char *);
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| 402 | const char *find_percent_cached (const char **);
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| 403 | FILE *open_tmpfile (char **, const char *);
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| 404 |
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| 405 | #ifndef NO_ARCHIVES
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| 406 | int ar_name (const char *);
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| 407 | void ar_parse_name (const char *, char **, char **);
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| 408 | int ar_touch (const char *);
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| 409 | time_t ar_member_date (const char *);
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| 410 |
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| 411 | typedef long int (*ar_member_func_t) (int desc, const char *mem, int truncated,
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| 412 | long int hdrpos, long int datapos,
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| 413 | long int size, long int date, int uid,
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| 414 | int gid, int mode, const void *arg);
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| 415 |
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| 416 | long int ar_scan (const char *archive, ar_member_func_t function, const void *arg);
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| 417 | int ar_name_equal (const char *name, const char *mem, int truncated);
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| 418 | #ifndef VMS
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| 419 | int ar_member_touch (const char *arname, const char *memname);
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| 420 | #endif
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| 421 | #endif
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| 422 |
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| 423 | int dir_file_exists_p (const char *, const char *);
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| 424 | int file_exists_p (const char *);
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| 425 | int file_impossible_p (const char *);
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| 426 | void file_impossible (const char *);
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| 427 | const char *dir_name (const char *);
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| 428 | void hash_init_directories (void);
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| 429 |
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| 430 | void define_default_variables (void);
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| 431 | void set_default_suffixes (void);
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| 432 | void install_default_suffix_rules (void);
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| 433 | void install_default_implicit_rules (void);
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| 434 |
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| 435 | void build_vpath_lists (void);
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| 436 | void construct_vpath_list (char *pattern, char *dirpath);
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| 437 | const char *vpath_search (const char *file, FILE_TIMESTAMP *mtime_ptr,
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| 438 | unsigned int* vpath_index, unsigned int* path_index);
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| 439 | int gpath_search (const char *file, unsigned int len);
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| 440 |
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| 441 | void construct_include_path (const char **arg_dirs);
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| 442 |
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| 443 | void user_access (void);
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| 444 | void make_access (void);
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| 445 | void child_access (void);
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| 446 |
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| 447 | void close_stdout (void);
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| 448 |
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| 449 | char *strip_whitespace (const char **begpp, const char **endpp);
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| 450 |
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| 451 | /* String caching */
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|---|
| 452 | void strcache_init (void);
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| 453 | void strcache_print_stats (const char *prefix);
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|---|
| 454 | int strcache_iscached (const char *str);
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|---|
| 455 | const char *strcache_add (const char *str);
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|---|
| 456 | const char *strcache_add_len (const char *str, int len);
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|---|
| 457 | int strcache_setbufsize (int size);
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|---|
| 458 |
|
|---|
| 459 | #ifdef HAVE_VFORK_H
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|---|
| 460 | # include <vfork.h>
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|---|
| 461 | #endif
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| 462 |
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|---|
| 463 | /* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
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| 464 | because such systems often declare them in header files anyway. */
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|---|
| 465 |
|
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| 466 | #if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32)
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| 467 |
|
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| 468 | long int atol ();
|
|---|
| 469 | # ifndef VMS
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|---|
| 470 | long int lseek ();
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|---|
| 471 | # endif
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|---|
| 472 |
|
|---|
| 473 | #endif /* Not GNU C library or POSIX. */
|
|---|
| 474 |
|
|---|
| 475 | #ifdef HAVE_GETCWD
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|---|
| 476 | # if !defined(VMS) && !defined(__DECC)
|
|---|
| 477 | char *getcwd ();
|
|---|
| 478 | # endif
|
|---|
| 479 | #else
|
|---|
| 480 | char *getwd ();
|
|---|
| 481 | # define getcwd(buf, len) getwd (buf)
|
|---|
| 482 | #endif
|
|---|
| 483 |
|
|---|
| 484 | #if !HAVE_STRCASECMP
|
|---|
| 485 | # if HAVE_STRICMP
|
|---|
| 486 | # define strcasecmp stricmp
|
|---|
| 487 | # elif HAVE_STRCMPI
|
|---|
| 488 | # define strcasecmp strcmpi
|
|---|
| 489 | # else
|
|---|
| 490 | /* Create our own, in misc.c */
|
|---|
| 491 | int strcasecmp (const char *s1, const char *s2);
|
|---|
| 492 | # endif
|
|---|
| 493 | #endif
|
|---|
| 494 |
|
|---|
| 495 | #if !HAVE_STRNCASECMP
|
|---|
| 496 | # if HAVE_STRNICMP
|
|---|
| 497 | # define strncasecmp strnicmp
|
|---|
| 498 | # elif HAVE_STRNCMPI
|
|---|
| 499 | # define strncasecmp strncmpi
|
|---|
| 500 | # else
|
|---|
| 501 | /* Create our own, in misc.c */
|
|---|
| 502 | int strncasecmp (const char *s1, const char *s2, int n);
|
|---|
| 503 | # endif
|
|---|
| 504 | #endif
|
|---|
| 505 |
|
|---|
| 506 | extern const struct floc *reading_file;
|
|---|
| 507 | extern const struct floc **expanding_var;
|
|---|
| 508 |
|
|---|
| 509 | extern char **environ;
|
|---|
| 510 |
|
|---|
| 511 | extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
|
|---|
| 512 | extern int print_data_base_flag, question_flag, touch_flag, always_make_flag;
|
|---|
| 513 | extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag;
|
|---|
| 514 | extern int print_version_flag, print_directory_flag, check_symlink_flag;
|
|---|
| 515 | extern int warn_undefined_variables_flag, posix_pedantic, not_parallel;
|
|---|
| 516 | extern int second_expansion, clock_skew_detected, rebuilding_makefiles;
|
|---|
| 517 | extern int one_shell;
|
|---|
| 518 |
|
|---|
| 519 | /* can we run commands via 'sh -c xxx' or must we use batch files? */
|
|---|
| 520 | extern int batch_mode_shell;
|
|---|
| 521 |
|
|---|
| 522 | /* Resetting the command script introduction prefix character. */
|
|---|
| 523 | #define RECIPEPREFIX_NAME ".RECIPEPREFIX"
|
|---|
| 524 | #define RECIPEPREFIX_DEFAULT '\t'
|
|---|
| 525 | extern char cmd_prefix;
|
|---|
| 526 |
|
|---|
| 527 | extern unsigned int job_slots;
|
|---|
| 528 | extern int job_fds[2];
|
|---|
| 529 | extern int job_rfd;
|
|---|
| 530 | #ifndef NO_FLOAT
|
|---|
| 531 | extern double max_load_average;
|
|---|
| 532 | #else
|
|---|
| 533 | extern int max_load_average;
|
|---|
| 534 | #endif
|
|---|
| 535 |
|
|---|
| 536 | extern char *program;
|
|---|
| 537 | extern char *starting_directory;
|
|---|
| 538 | extern unsigned int makelevel;
|
|---|
| 539 | extern char *version_string, *remote_description, *make_host;
|
|---|
| 540 |
|
|---|
| 541 | extern unsigned int commands_started;
|
|---|
| 542 |
|
|---|
| 543 | extern int handling_fatal_signal;
|
|---|
| 544 |
|
|---|
| 545 |
|
|---|
| 546 | #ifndef MIN
|
|---|
| 547 | #define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
|
|---|
| 548 | #endif
|
|---|
| 549 | #ifndef MAX
|
|---|
| 550 | #define MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
|
|---|
| 551 | #endif
|
|---|
| 552 |
|
|---|
| 553 | #ifdef VMS
|
|---|
| 554 | # define MAKE_SUCCESS 1
|
|---|
| 555 | # define MAKE_TROUBLE 2
|
|---|
| 556 | # define MAKE_FAILURE 3
|
|---|
| 557 | #else
|
|---|
| 558 | # define MAKE_SUCCESS 0
|
|---|
| 559 | # define MAKE_TROUBLE 1
|
|---|
| 560 | # define MAKE_FAILURE 2
|
|---|
| 561 | #endif
|
|---|
| 562 |
|
|---|
| 563 | /* Set up heap debugging library dmalloc. */
|
|---|
| 564 |
|
|---|
| 565 | #ifdef HAVE_DMALLOC_H
|
|---|
| 566 | #include <dmalloc.h>
|
|---|
| 567 | #endif
|
|---|
| 568 |
|
|---|
| 569 | #ifndef initialize_main
|
|---|
| 570 | # ifdef __EMX__
|
|---|
| 571 | # define initialize_main(pargc, pargv) \
|
|---|
| 572 | { _wildcard(pargc, pargv); _response(pargc, pargv); }
|
|---|
| 573 | # else
|
|---|
| 574 | # define initialize_main(pargc, pargv)
|
|---|
| 575 | # endif
|
|---|
| 576 | #endif
|
|---|
| 577 |
|
|---|
| 578 | #ifdef __EMX__
|
|---|
| 579 | # if !defined chdir
|
|---|
| 580 | # define chdir _chdir2
|
|---|
| 581 | # endif
|
|---|
| 582 | # if !defined getcwd
|
|---|
| 583 | # define getcwd _getcwd2
|
|---|
| 584 | # endif
|
|---|
| 585 |
|
|---|
| 586 | /* NO_CHDIR2 causes make not to use _chdir2() and _getcwd2() instead of
|
|---|
| 587 | chdir() and getcwd(). This avoids some error messages for the
|
|---|
| 588 | make testsuite but restricts the drive letter support. */
|
|---|
| 589 | # ifdef NO_CHDIR2
|
|---|
| 590 | # warning NO_CHDIR2: usage of drive letters restricted
|
|---|
| 591 | # undef chdir
|
|---|
| 592 | # undef getcwd
|
|---|
| 593 | # endif
|
|---|
| 594 | #endif
|
|---|
| 595 |
|
|---|
| 596 | #ifndef initialize_main
|
|---|
| 597 | # define initialize_main(pargc, pargv)
|
|---|
| 598 | #endif
|
|---|
| 599 |
|
|---|
| 600 |
|
|---|
| 601 | /* Some systems (like Solaris, PTX, etc.) do not support the SA_RESTART flag
|
|---|
| 602 | properly according to POSIX. So, we try to wrap common system calls with
|
|---|
| 603 | checks for EINTR. Note that there are still plenty of system calls that
|
|---|
| 604 | can fail with EINTR but this, reportedly, gets the vast majority of
|
|---|
| 605 | failure cases. If you still experience failures you'll need to either get
|
|---|
| 606 | a system where SA_RESTART works, or you need to avoid -j. */
|
|---|
| 607 |
|
|---|
| 608 | #define EINTRLOOP(_v,_c) while (((_v)=_c)==-1 && errno==EINTR)
|
|---|
| 609 |
|
|---|
| 610 | /* While system calls that return integers are pretty consistent about
|
|---|
| 611 | returning -1 on failure and setting errno in that case, functions that
|
|---|
| 612 | return pointers are not always so well behaved. Sometimes they return
|
|---|
| 613 | NULL for expected behavior: one good example is readdir() which returns
|
|---|
| 614 | NULL at the end of the directory--and _doesn't_ reset errno. So, we have
|
|---|
| 615 | to do it ourselves here. */
|
|---|
| 616 |
|
|---|
| 617 | #define ENULLLOOP(_v,_c) do { errno = 0; (_v) = _c; } \
|
|---|
| 618 | while((_v)==0 && errno==EINTR)
|
|---|
