-# getopt.m4 serial 34
-dnl Copyright (C) 2002-2006, 2008-2011 Free Software Foundation, Inc.
+# getopt.m4 serial 44
+dnl Copyright (C) 2002-2006, 2008-2013 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.
[
m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX])
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
- gl_GETOPT_IFELSE([
- gl_REPLACE_GETOPT
- ],
- [])
+ AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+ dnl Other modules can request the gnulib implementation of the getopt
+ dnl functions unconditionally, by defining gl_REPLACE_GETOPT_ALWAYS.
+ dnl argp.m4 does this.
+ m4_ifdef([gl_REPLACE_GETOPT_ALWAYS], [
+ REPLACE_GETOPT=1
+ ], [
+ REPLACE_GETOPT=0
+ if test -n "$gl_replace_getopt"; then
+ REPLACE_GETOPT=1
+ fi
+ ])
+ if test $REPLACE_GETOPT = 1; then
+ dnl Arrange for getopt.h to be created.
+ gl_GETOPT_SUBSTITUTE_HEADER
+ fi
])
# Request a POSIX compliant getopt function with GNU extensions (such as
AC_REQUIRE([gl_FUNC_GETOPT_POSIX])
])
-# Request the gnulib implementation of the getopt functions unconditionally.
-# argp.m4 uses this.
-AC_DEFUN([gl_REPLACE_GETOPT],
-[
- dnl Arrange for getopt.h to be created.
- gl_GETOPT_SUBSTITUTE_HEADER
- dnl Arrange for unistd.h to include getopt.h.
- GNULIB_UNISTD_H_GETOPT=1
- dnl Arrange to compile the getopt implementation.
- AC_LIBOBJ([getopt])
- AC_LIBOBJ([getopt1])
- gl_PREREQ_GETOPT
-])
-
-# emacs' configure.in uses this.
-AC_DEFUN([gl_GETOPT_IFELSE],
-[
- AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
- AS_IF([test -n "$gl_replace_getopt"], [$1], [$2])
-])
-
# Determine whether to replace the entire getopt facility.
AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
[
AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes])
fi
- dnl mingw's getopt (in libmingwex.a) does weird things when the options
- dnl strings starts with '+' and it's not the first call. Some internal state
- dnl is left over from earlier calls, and neither setting optind = 0 nor
- dnl setting optreset = 1 get rid of this internal state.
- dnl POSIX is silent on optind vs. optreset, so we allow either behavior.
dnl POSIX 2008 does not specify leading '+' behavior, but see
dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on
dnl the next version of POSIX. For now, we only guarantee leading '+'
AC_CACHE_CHECK([whether getopt is POSIX compatible],
[gl_cv_func_getopt_posix],
[
- dnl BSD getopt_long uses an incompatible method to reset
- dnl option processing. Existence of the variable, in and of
- dnl itself, is not a reason to replace getopt, but knowledge
- dnl of the variable is needed to determine how to reset and
- dnl whether a reset reparses the environment. Solaris
- dnl supports neither optreset nor optind=0, but keeps no state
- dnl that needs a reset beyond setting optind=1; detect Solaris
- dnl by getopt_clip.
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <unistd.h>]],
- [[int *p = &optreset; return optreset;]])],
- [gl_optind_min=1],
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <getopt.h>]],
- [[return !getopt_clip;]])],
- [gl_optind_min=1],
- [gl_optind_min=0])])
-
- dnl This test fails on mingw and succeeds on many other platforms.
- gl_save_CPPFLAGS=$CPPFLAGS
- CPPFLAGS="$CPPFLAGS -DOPTIND_MIN=$gl_optind_min"
- AC_RUN_IFELSE([AC_LANG_SOURCE([[
+ dnl Merging these three different test programs into a single one
+ dnl would require a reset mechanism. On BSD systems, it can be done
+ dnl through 'optreset'; on some others (glibc), it can be done by
+ dnl setting 'optind' to 0; on others again (HP-UX, IRIX, OSF/1,
+ dnl Solaris 9, musl libc), there is no such mechanism.
+ if test $cross_compiling = no; then
+ dnl Sanity check. Succeeds everywhere (except on MSVC,
+ dnl which lacks <unistd.h> and getopt() entirely).
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
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;
+ static char program[] = "program";
+ static char a[] = "-a";
+ static char foo[] = "foo";
+ static char bar[] = "bar";
+ char *argv[] = { program, a, foo, bar, NULL };
+ int c;
- 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;
+ c = getopt (4, argv, "ab");
+ if (!(c == 'a'))
+ return 1;
+ c = getopt (4, argv, "ab");
+ if (!(c == -1))
+ return 2;
+ if (!(optind == 2))
+ return 3;
+ return 0;
+}
+]])],
+ [gl_cv_func_getopt_posix=maybe],
+ [gl_cv_func_getopt_posix=no])
+ if test $gl_cv_func_getopt_posix = maybe; then
+ dnl Sanity check with '+'. Succeeds everywhere (except on MSVC,
+ dnl which lacks <unistd.h> and getopt() entirely).
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
- 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;
+int
+main ()
+{
+ static char program[] = "program";
+ static char donald[] = "donald";
+ static char p[] = "-p";
+ static char billy[] = "billy";
+ static char duck[] = "duck";
+ static char a[] = "-a";
+ static char bar[] = "bar";
+ char *argv[] = { program, donald, p, billy, duck, a, bar, NULL };
+ int c;
- 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, AIX 7.1 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;
- }
+ c = getopt (7, 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;
+ return 0;
+}
+]])],
+ [gl_cv_func_getopt_posix=maybe],
+ [gl_cv_func_getopt_posix=no])
+ fi
+ if test $gl_cv_func_getopt_posix = maybe; then
+ dnl Detect Mac OS X 10.5, AIX 7.1, mingw bug.
+ AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+int
+main ()
+{
+ static char program[] = "program";
+ static char ab[] = "-ab";
+ char *argv[3] = { program, ab, NULL };
+ if (getopt (2, argv, "ab:") != 'a')
+ return 13;
+ if (getopt (2, argv, "ab:") != '?')
+ return 14;
+ if (optopt != 'b')
+ return 15;
+ if (optind != 2)
+ return 16;
return 0;
}
]])],
- [gl_cv_func_getopt_posix=yes], [gl_cv_func_getopt_posix=no],
- [case "$host_os" in
- mingw*) gl_cv_func_getopt_posix="guessing no";;
- darwin* | aix*) gl_cv_func_getopt_posix="guessing no";;
- *) gl_cv_func_getopt_posix="guessing yes";;
- esac
- ])
- CPPFLAGS=$gl_save_CPPFLAGS
+ [gl_cv_func_getopt_posix=yes],
+ [gl_cv_func_getopt_posix=no])
+ fi
+ else
+ case "$host_os" in
+ darwin* | aix* | mingw*) gl_cv_func_getopt_posix="guessing no";;
+ *) gl_cv_func_getopt_posix="guessing yes";;
+ esac
+ fi
])
case "$gl_cv_func_getopt_posix" in
*no) gl_replace_getopt=yes ;;
[AC_LANG_PROGRAM([[#include <getopt.h>
#include <stddef.h>
#include <string.h>
+ ]GL_NOCRASH[
]], [[
int result = 0;
+
+ nocrash_init();
+
/* 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,
+ and fails on Mac OS 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;
+ static char conftest[] = "conftest";
+ static char plus[] = "-+";
+ char *argv[3] = { conftest, plus, NULL };
opterr = 0;
- if (getopt (2, myargv, "+a") != '?')
+ if (getopt (2, argv, "+a") != '?')
result |= 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,
+ and fails on Mac OS 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 };
+ static char program[] = "program";
+ static char p[] = "-p";
+ static char foo[] = "foo";
+ static char bar[] = "bar";
+ char *argv[] = { program, p, foo, bar, NULL };
optind = 1;
if (getopt (4, argv, "p::") != 'p')
}
/* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0. */
{
- char *argv[] = { "program", "foo", "-p", NULL };
+ static char program[] = "program";
+ static char foo[] = "foo";
+ static char p[] = "-p";
+ char *argv[] = { program, foo, p, NULL };
optind = 0;
if (getopt (3, argv, "-p") != 1)
result |= 16;
else if (getopt (3, argv, "-p") != 'p')
- result |= 32;
+ result |= 16;
}
/* This code fails on glibc 2.11. */
{
- char *argv[] = { "program", "-b", "-a", NULL };
+ static char program[] = "program";
+ static char b[] = "-b";
+ static char a[] = "-a";
+ char *argv[] = { program, b, a, NULL };
optind = opterr = 0;
if (getopt (3, argv, "+:a:b") != 'b')
- result |= 64;
+ result |= 32;
else if (getopt (3, argv, "+:a:b") != ':')
+ result |= 32;
+ }
+ /* This code dumps core on glibc 2.14. */
+ {
+ static char program[] = "program";
+ static char w[] = "-W";
+ static char dummy[] = "dummy";
+ char *argv[] = { program, w, dummy, NULL };
+ optind = opterr = 1;
+ if (getopt (3, argv, "W;") != 'W')
result |= 64;
}
return result;
]])],
[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
+ [dnl Cross compiling. Assume the worst, even on glibc platforms.
+ gl_cv_func_getopt_gnu="guessing no"
])
case $gl_had_POSIXLY_CORRECT in
exported) ;;
*) AS_UNSET([POSIXLY_CORRECT]) ;;
esac
])
- if test "$gl_cv_func_getopt_gnu" = "no"; then
+ if test "$gl_cv_func_getopt_gnu" != yes; then
gl_replace_getopt=yes
+ else
+ AC_CACHE_CHECK([for working GNU getopt_long function],
+ [gl_cv_func_getopt_long_gnu],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <getopt.h>
+ #include <stddef.h>
+ #include <string.h>
+ ]],
+ [[static const struct option long_options[] =
+ {
+ { "xtremely-",no_argument, NULL, 1003 },
+ { "xtra", no_argument, NULL, 1001 },
+ { "xtreme", no_argument, NULL, 1002 },
+ { "xtremely", no_argument, NULL, 1003 },
+ { NULL, 0, NULL, 0 }
+ };
+ /* This code fails on OpenBSD 5.0. */
+ {
+ static char program[] = "program";
+ static char xtremel[] = "--xtremel";
+ char *argv[] = { program, xtremel, NULL };
+ int option_index;
+ optind = 1; opterr = 0;
+ if (getopt_long (2, argv, "", long_options, &option_index) != 1003)
+ return 1;
+ }
+ return 0;
+ ]])],
+ [gl_cv_func_getopt_long_gnu=yes],
+ [gl_cv_func_getopt_long_gnu=no],
+ [dnl Cross compiling. Guess no on OpenBSD, yes otherwise.
+ case "$host_os" in
+ openbsd*) gl_cv_func_getopt_long_gnu="guessing no";;
+ *) gl_cv_func_getopt_long_gnu="guessing yes";;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_getopt_long_gnu" in
+ *yes) ;;
+ *) gl_replace_getopt=yes ;;
+ esac
fi
fi
])
-# emacs' configure.in uses this.
AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
[
GETOPT_H=getopt.h
])
# Prerequisites of lib/getopt*.
-# emacs' configure.in uses this.
AC_DEFUN([gl_PREREQ_GETOPT],
[
AC_CHECK_DECLS_ONCE([getenv])
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