1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
|
# getopt.m4 serial 28
dnl Copyright (C) 2002-2006, 2008-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# Request a POSIX compliant getopt function.
AC_DEFUN([gl_FUNC_GETOPT_POSIX],
[
m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX])
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
gl_GETOPT_IFELSE([
gl_REPLACE_GETOPT
],
[])
])
# Request a POSIX compliant getopt function with GNU extensions (such as
# options with optional arguments) and the functions getopt_long,
# getopt_long_only.
AC_DEFUN([gl_FUNC_GETOPT_GNU],
[
m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU])
AC_REQUIRE([gl_FUNC_GETOPT_POSIX])
])
# Request the gnulib implementation of the getopt functions unconditionally.
# argp.m4 uses this.
AC_DEFUN([gl_REPLACE_GETOPT],
[
dnl Arrange for getopt.h to be created.
gl_GETOPT_SUBSTITUTE_HEADER
dnl Arrange for unistd.h to include getopt.h.
GNULIB_UNISTD_H_GETOPT=1
dnl Arrange to compile the getopt implementation.
AC_LIBOBJ([getopt])
AC_LIBOBJ([getopt1])
gl_PREREQ_GETOPT
])
# emacs' configure.in uses this.
AC_DEFUN([gl_GETOPT_IFELSE],
[
AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
AS_IF([test -n "$gl_replace_getopt"], [$1], [$2])
])
# Determine whether to replace the entire getopt facility.
AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
[
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
dnl Persuade Solaris <unistd.h> to declare optarg, optind, opterr, optopt.
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
gl_CHECK_NEXT_HEADERS([getopt.h])
AC_CHECK_HEADERS_ONCE([getopt.h])
if test $ac_cv_header_getopt_h = yes; then
HAVE_GETOPT_H=1
else
HAVE_GETOPT_H=0
fi
AC_SUBST([HAVE_GETOPT_H])
gl_replace_getopt=
dnl Test whether <getopt.h> is available.
if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes])
fi
dnl Test whether the function getopt_long is available.
if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes])
fi
dnl BSD getopt_long uses an incompatible method to reset option processing.
dnl Existence of the variable, in and of itself, is not a reason to replace
dnl getopt, but knowledge of the variable is needed to determine how to
dnl reset and whether a reset reparses the environment.
dnl Solaris supports neither optreset nor optind=0, but keeps no state that
dnl needs a reset beyond setting optind=1; detect Solaris by getopt_clip.
if test -z "$gl_replace_getopt"; then
AC_CHECK_DECLS([optreset], [],
[AC_CHECK_DECLS([getopt_clip], [], [],
[[#include <getopt.h>]])
],
[[#include <getopt.h>]])
fi
dnl mingw's getopt (in libmingwex.a) does weird things when the options
dnl strings starts with '+' and it's not the first call. Some internal state
dnl is left over from earlier calls, and neither setting optind = 0 nor
dnl setting optreset = 1 get rid of this internal state.
dnl POSIX is silent on optind vs. optreset, so we allow either behavior.
dnl POSIX 2008 does not specify leading '+' behavior, but see
dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on
dnl the next version of POSIX. For now, we only guarantee leading '+'
dnl behavior with getopt-gnu.
if test -z "$gl_replace_getopt"; then
AC_CACHE_CHECK([whether getopt is POSIX compatible],
[gl_cv_func_getopt_posix],
[
dnl This test fails on mingw and succeeds on all other platforms.
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#if !HAVE_DECL_OPTRESET && !HAVE_DECL_GETOPT_CLIP
# define OPTIND_MIN 0
#else
# define OPTIND_MIN 1
#endif
int
main ()
{
{
int argc = 0;
char *argv[10];
int c;
argv[argc++] = "program";
argv[argc++] = "-a";
argv[argc++] = "foo";
argv[argc++] = "bar";
argv[argc] = NULL;
optind = OPTIND_MIN;
opterr = 0;
c = getopt (argc, argv, "ab");
if (!(c == 'a'))
return 1;
c = getopt (argc, argv, "ab");
if (!(c == -1))
return 2;
if (!(optind == 2))
return 3;
}
/* Some internal state exists at this point. */
{
int argc = 0;
char *argv[10];
int c;
argv[argc++] = "program";
argv[argc++] = "donald";
argv[argc++] = "-p";
argv[argc++] = "billy";
argv[argc++] = "duck";
argv[argc++] = "-a";
argv[argc++] = "bar";
argv[argc] = NULL;
optind = OPTIND_MIN;
opterr = 0;
c = getopt (argc, argv, "+abp:q:");
if (!(c == -1))
return 4;
if (!(strcmp (argv[0], "program") == 0))
return 5;
if (!(strcmp (argv[1], "donald") == 0))
return 6;
if (!(strcmp (argv[2], "-p") == 0))
return 7;
if (!(strcmp (argv[3], "billy") == 0))
return 8;
if (!(strcmp (argv[4], "duck") == 0))
return 9;
if (!(strcmp (argv[5], "-a") == 0))
return 10;
if (!(strcmp (argv[6], "bar") == 0))
return 11;
if (!(optind == 1))
return 12;
}
/* Detect MacOS 10.5 bug. */
{
char *argv[3] = { "program", "-ab", NULL };
optind = OPTIND_MIN;
opterr = 0;
if (getopt (2, argv, "ab:") != 'a')
return 13;
if (getopt (2, argv, "ab:") != '?')
return 14;
if (optopt != 'b')
return 15;
if (optind != 2)
return 16;
}
return 0;
}
]])],
[gl_cv_func_getopt_posix=yes], [gl_cv_func_getopt_posix=no],
[case "$host_os" in
mingw*) gl_cv_func_getopt_posix="guessing no";;
darwin*) gl_cv_func_getopt_posix="guessing no";;
*) gl_cv_func_getopt_posix="guessing yes";;
esac
])
])
case "$gl_cv_func_getopt_posix" in
*no) gl_replace_getopt=yes ;;
esac
fi
if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_getopt_gnu],
[# Even with POSIXLY_CORRECT, the GNU extension of leading '-' in the
# optstring is necessary for programs like m4 that have POSIX-mandated
# semantics for supporting options interspersed with files.
# Also, since getopt_long is a GNU extension, we require optind=0.
gl_had_POSIXLY_CORRECT=${POSIXLY_CORRECT:+yes}
POSIXLY_CORRECT=1
export POSIXLY_CORRECT
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([[#include <getopt.h>
#include <stddef.h>
#include <string.h>
]], [[
/* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw,
and fails on MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
OSF/1 5.1, Solaris 10. */
{
char *myargv[3];
myargv[0] = "conftest";
myargv[1] = "-+";
myargv[2] = 0;
opterr = 0;
if (getopt (2, myargv, "+a") != '?')
return 1;
}
/* This code succeeds on glibc 2.8, mingw,
and fails on MacOS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x. */
{
char *argv[] = { "program", "-p", "foo", "bar", NULL };
optind = 1;
if (getopt (4, argv, "p::") != 'p')
return 2;
if (optarg != NULL)
return 3;
if (getopt (4, argv, "p::") != -1)
return 4;
if (optind != 2)
return 5;
}
/* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0. */
{
char *argv[] = { "program", "foo", "-p", NULL };
optind = 0;
if (getopt (3, argv, "-p") != 1)
return 6;
if (getopt (3, argv, "-p") != 'p')
return 7;
}
/* This code fails on glibc 2.11. */
{
char *argv[] = { "program", "-b", "-a", NULL };
optind = opterr = 0;
if (getopt (3, argv, "+:a:b") != 'b')
return 8;
if (getopt (3, argv, "+:a:b") != ':')
return 9;
}
return 0;
]])],
[gl_cv_func_getopt_gnu=yes],
[gl_cv_func_getopt_gnu=no],
[dnl Cross compiling. Guess based on host and declarations.
case $host_os:$ac_cv_have_decl_optreset in
*-gnu*:* | mingw*:*) gl_cv_func_getopt_gnu=no;;
*:yes) gl_cv_func_getopt_gnu=no;;
*) gl_cv_func_getopt_gnu=yes;;
esac
])
if test "$gl_had_POSIXLY_CORRECT" != yes; then
AS_UNSET([POSIXLY_CORRECT])
fi
])
if test "$gl_cv_func_getopt_gnu" = "no"; then
gl_replace_getopt=yes
fi
fi
])
# emacs' configure.in uses this.
AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
[
GETOPT_H=getopt.h
AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
[Define to rpl_ if the getopt replacement functions and variables
should be used.])
AC_SUBST([GETOPT_H])
])
# Prerequisites of lib/getopt*.
# emacs' configure.in uses this.
AC_DEFUN([gl_PREREQ_GETOPT],
[
AC_CHECK_DECLS_ONCE([getenv])
])
|