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All auto-generated files are created by running ./build-aux/bootstrap with Gnulib as at commit a7967a2cf0998b6c157c7cf8e1d8d9d11dab30b0 (with a date stamp of Thu Mar 15 08:46:29 2012 -0700), Autoconf 2.68, Automake 1.11.3 and Gettext 0.18.1.1.
342 lines
11 KiB
Plaintext
342 lines
11 KiB
Plaintext
# getopt.m4 serial 39
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dnl Copyright (C) 2002-2006, 2008-2012 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Request a POSIX compliant getopt function.
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AC_DEFUN([gl_FUNC_GETOPT_POSIX],
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[
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m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX])
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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dnl Other modules can request the gnulib implementation of the getopt
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dnl functions unconditionally, by defining gl_REPLACE_GETOPT_ALWAYS.
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dnl argp.m4 does this.
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m4_ifdef([gl_REPLACE_GETOPT_ALWAYS], [
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gl_GETOPT_IFELSE([], [])
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REPLACE_GETOPT=1
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], [
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REPLACE_GETOPT=0
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gl_GETOPT_IFELSE([
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REPLACE_GETOPT=1
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],
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[])
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])
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if test $REPLACE_GETOPT = 1; then
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dnl Arrange for getopt.h to be created.
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gl_GETOPT_SUBSTITUTE_HEADER
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fi
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])
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# Request a POSIX compliant getopt function with GNU extensions (such as
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# options with optional arguments) and the functions getopt_long,
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# getopt_long_only.
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AC_DEFUN([gl_FUNC_GETOPT_GNU],
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[
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m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU])
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AC_REQUIRE([gl_FUNC_GETOPT_POSIX])
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])
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# emacs' configure.in uses this.
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AC_DEFUN([gl_GETOPT_IFELSE],
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[
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AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
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AS_IF([test -n "$gl_replace_getopt"], [$1], [$2])
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])
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# Determine whether to replace the entire getopt facility.
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AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
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[
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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AC_REQUIRE([AC_PROG_AWK]) dnl for awk that supports ENVIRON
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dnl Persuade Solaris <unistd.h> to declare optarg, optind, opterr, optopt.
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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gl_CHECK_NEXT_HEADERS([getopt.h])
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if test $ac_cv_header_getopt_h = yes; then
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HAVE_GETOPT_H=1
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else
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HAVE_GETOPT_H=0
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fi
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AC_SUBST([HAVE_GETOPT_H])
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gl_replace_getopt=
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dnl Test whether <getopt.h> is available.
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if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
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AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes])
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fi
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dnl Test whether the function getopt_long is available.
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if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
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AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes])
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fi
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dnl mingw's getopt (in libmingwex.a) does weird things when the options
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dnl strings starts with '+' and it's not the first call. Some internal state
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dnl is left over from earlier calls, and neither setting optind = 0 nor
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dnl setting optreset = 1 get rid of this internal state.
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dnl POSIX is silent on optind vs. optreset, so we allow either behavior.
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dnl POSIX 2008 does not specify leading '+' behavior, but see
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dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on
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dnl the next version of POSIX. For now, we only guarantee leading '+'
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dnl behavior with getopt-gnu.
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if test -z "$gl_replace_getopt"; then
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AC_CACHE_CHECK([whether getopt is POSIX compatible],
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[gl_cv_func_getopt_posix],
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[
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dnl BSD getopt_long uses an incompatible method to reset option
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dnl processing. Existence of the optreset variable, in and of
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dnl itself, is not a reason to replace getopt, but knowledge
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dnl of the variable is needed to determine how to reset and
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dnl whether a reset reparses the environment. Solaris
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dnl supports neither optreset nor optind=0, but keeps no state
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dnl that needs a reset beyond setting optind=1; detect Solaris
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dnl by getopt_clip.
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <unistd.h>]],
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[[int *p = &optreset; return optreset;]])],
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[gl_optind_min=1],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <getopt.h>]],
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[[return !getopt_clip;]])],
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[gl_optind_min=1],
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[gl_optind_min=0])])
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dnl This test fails on mingw and succeeds on many other platforms.
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gl_save_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS -DOPTIND_MIN=$gl_optind_min"
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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int
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main ()
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{
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{
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static char program[] = "program";
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static char a[] = "-a";
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static char foo[] = "foo";
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static char bar[] = "bar";
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char *argv[] = { program, a, foo, bar, NULL };
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int c;
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optind = OPTIND_MIN;
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opterr = 0;
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c = getopt (4, argv, "ab");
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if (!(c == 'a'))
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return 1;
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c = getopt (4, argv, "ab");
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if (!(c == -1))
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return 2;
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if (!(optind == 2))
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return 3;
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}
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/* Some internal state exists at this point. */
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{
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static char program[] = "program";
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static char donald[] = "donald";
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static char p[] = "-p";
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static char billy[] = "billy";
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static char duck[] = "duck";
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static char a[] = "-a";
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static char bar[] = "bar";
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char *argv[] = { program, donald, p, billy, duck, a, bar, NULL };
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int c;
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optind = OPTIND_MIN;
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opterr = 0;
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c = getopt (7, argv, "+abp:q:");
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if (!(c == -1))
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return 4;
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if (!(strcmp (argv[0], "program") == 0))
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return 5;
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if (!(strcmp (argv[1], "donald") == 0))
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return 6;
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if (!(strcmp (argv[2], "-p") == 0))
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return 7;
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if (!(strcmp (argv[3], "billy") == 0))
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return 8;
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if (!(strcmp (argv[4], "duck") == 0))
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return 9;
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if (!(strcmp (argv[5], "-a") == 0))
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return 10;
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if (!(strcmp (argv[6], "bar") == 0))
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return 11;
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if (!(optind == 1))
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return 12;
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}
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/* Detect MacOS 10.5, AIX 7.1 bug. */
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{
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static char program[] = "program";
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static char ab[] = "-ab";
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char *argv[3] = { program, ab, NULL };
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optind = OPTIND_MIN;
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opterr = 0;
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if (getopt (2, argv, "ab:") != 'a')
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return 13;
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if (getopt (2, argv, "ab:") != '?')
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return 14;
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if (optopt != 'b')
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return 15;
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if (optind != 2)
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return 16;
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}
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return 0;
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}
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]])],
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[gl_cv_func_getopt_posix=yes], [gl_cv_func_getopt_posix=no],
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[case "$host_os" in
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mingw*) gl_cv_func_getopt_posix="guessing no";;
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darwin* | aix*) gl_cv_func_getopt_posix="guessing no";;
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*) gl_cv_func_getopt_posix="guessing yes";;
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esac
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])
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CPPFLAGS=$gl_save_CPPFLAGS
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])
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case "$gl_cv_func_getopt_posix" in
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*no) gl_replace_getopt=yes ;;
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esac
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fi
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if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
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AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_getopt_gnu],
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[# Even with POSIXLY_CORRECT, the GNU extension of leading '-' in the
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# optstring is necessary for programs like m4 that have POSIX-mandated
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# semantics for supporting options interspersed with files.
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# Also, since getopt_long is a GNU extension, we require optind=0.
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# Bash ties 'set -o posix' to a non-exported POSIXLY_CORRECT;
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# so take care to revert to the correct (non-)export state.
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dnl GNU Coding Standards currently allow awk but not env; besides, env
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dnl is ambiguous with environment values that contain newlines.
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gl_awk_probe='BEGIN { if ("POSIXLY_CORRECT" in ENVIRON) print "x" }'
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case ${POSIXLY_CORRECT+x}`$AWK "$gl_awk_probe" </dev/null` in
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xx) gl_had_POSIXLY_CORRECT=exported ;;
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x) gl_had_POSIXLY_CORRECT=yes ;;
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*) gl_had_POSIXLY_CORRECT= ;;
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esac
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POSIXLY_CORRECT=1
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export POSIXLY_CORRECT
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AC_RUN_IFELSE(
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[AC_LANG_PROGRAM([[#include <getopt.h>
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#include <stddef.h>
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#include <string.h>
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]GL_NOCRASH[
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]], [[
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int result = 0;
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nocrash_init();
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/* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw,
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and fails on MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
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OSF/1 5.1, Solaris 10. */
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{
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static char conftest[] = "conftest";
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static char plus[] = "-+";
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char *argv[3] = { conftest, plus, NULL };
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opterr = 0;
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if (getopt (2, argv, "+a") != '?')
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result |= 1;
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}
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/* This code succeeds on glibc 2.8, mingw,
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and fails on MacOS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
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IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x. */
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{
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static char program[] = "program";
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static char p[] = "-p";
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static char foo[] = "foo";
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static char bar[] = "bar";
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char *argv[] = { program, p, foo, bar, NULL };
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optind = 1;
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if (getopt (4, argv, "p::") != 'p')
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result |= 2;
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else if (optarg != NULL)
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result |= 4;
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else if (getopt (4, argv, "p::") != -1)
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result |= 6;
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else if (optind != 2)
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result |= 8;
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}
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/* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0. */
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{
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static char program[] = "program";
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static char foo[] = "foo";
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static char p[] = "-p";
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char *argv[] = { program, foo, p, NULL };
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optind = 0;
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if (getopt (3, argv, "-p") != 1)
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result |= 16;
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else if (getopt (3, argv, "-p") != 'p')
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result |= 32;
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}
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/* This code fails on glibc 2.11. */
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{
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static char program[] = "program";
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static char b[] = "-b";
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static char a[] = "-a";
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char *argv[] = { program, b, a, NULL };
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optind = opterr = 0;
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if (getopt (3, argv, "+:a:b") != 'b')
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result |= 64;
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else if (getopt (3, argv, "+:a:b") != ':')
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result |= 64;
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}
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/* This code dumps core on glibc 2.14. */
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{
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static char program[] = "program";
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static char w[] = "-W";
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static char dummy[] = "dummy";
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char *argv[] = { program, w, dummy, NULL };
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optind = opterr = 1;
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if (getopt (3, argv, "W;") != 'W')
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result |= 128;
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}
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return result;
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]])],
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[gl_cv_func_getopt_gnu=yes],
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[gl_cv_func_getopt_gnu=no],
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[dnl Cross compiling. Guess based on host and declarations.
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case $host_os:$ac_cv_have_decl_optreset in
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*-gnu*:* | mingw*:*) gl_cv_func_getopt_gnu=no;;
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*:yes) gl_cv_func_getopt_gnu=no;;
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*) gl_cv_func_getopt_gnu=yes;;
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esac
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])
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case $gl_had_POSIXLY_CORRECT in
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exported) ;;
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yes) AS_UNSET([POSIXLY_CORRECT]); POSIXLY_CORRECT=1 ;;
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*) AS_UNSET([POSIXLY_CORRECT]) ;;
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esac
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])
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if test "$gl_cv_func_getopt_gnu" = "no"; then
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gl_replace_getopt=yes
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fi
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fi
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])
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# emacs' configure.in uses this.
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AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
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[
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GETOPT_H=getopt.h
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AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
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[Define to rpl_ if the getopt replacement functions and variables
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should be used.])
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AC_SUBST([GETOPT_H])
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])
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# Prerequisites of lib/getopt*.
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# emacs' configure.in uses this.
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AC_DEFUN([gl_PREREQ_GETOPT],
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[
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AC_CHECK_DECLS_ONCE([getenv])
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])
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