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argp-standalone/aclocal.m4
Érico Rolim ede863a979 Import argp-standalone 1.2.
2021-02-10 17:41:05 -03:00

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# generated automatically by aclocal 1.7.3 -*- Autoconf -*-
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
# Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
dnl Try to detect the type of the third arg to getsockname() et al
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[ac_cv_type_socklen_t=yes], [ac_cv_type_socklen_t=no])])
if test $ac_cv_type_socklen_t = no; then
AC_MSG_CHECKING(for AIX)
AC_EGREP_CPP(yes, [
#ifdef _AIX
yes
#endif
],[
AC_MSG_RESULT(yes)
AC_DEFINE(socklen_t, size_t)
],[
AC_MSG_RESULT(no)
AC_DEFINE(socklen_t, int)
])
fi
])
dnl LSH_PATH_ADD(path-id, directory)
AC_DEFUN([LSH_PATH_ADD],
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ac_exists=no
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for old in $1_REAL_DIRS ; do
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ac_found=yes;
break;
fi
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AC_MSG_RESULT(added)
# LDFLAGS="$LDFLAGS -L $2"
$1_REAL_DIRS="$ac_real_dir [$]$1_REAL_DIRS"
$1_DIRS="$2 [$]$1_DIRS"
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fi
if test $ac_exists = no ; then
AC_MSG_RESULT(not found)
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])
dnl LSH_RPATH_ADD(dir)
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dnl LSH_RPATH_INIT(candidates)
AC_DEFUN([LSH_RPATH_INIT],
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;;
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;;
IRIX\ 5.*)
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;;
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;;
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;;
*)
:
;;
esac
if test x$RPATHFLAG = x ; then
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RPATH_CANDIDATE_REAL_DIRS=''
RPATH_CANDIDATE_DIRS=''
AC_MSG_RESULT([Searching for libraries])
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])
dnl Try to execute a main program, and if it fails, try adding some
dnl -R flag.
dnl LSH_RPATH_FIX
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dnl echo RPATH_CANDIDATE_DIRS = $RPATH_CANDIDATE_DIRS
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dnl echo LDFLAGS = $LDFLAGS
AC_TRY_RUN([int main(int argc, char **argv) { return 0; }],
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AC_MSG_RESULT([adding $RPATHFLAG$d])
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[ac_remaining_dirs="$ac_remaining_dirs $d"], :)
LDFLAGS="$ac_rpath_save_LDFLAGS"
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RPATH_CANDIDATE_DIRS=$ac_remaining_dirs
fi
if test $ac_success = no ; then
AC_MSG_RESULT(failed)
fi
fi
])
dnl Like AC_CHECK_LIB, but uses $KRB_LIBS rather than $LIBS.
dnl LSH_CHECK_KRB_LIB(LIBRARY, FUNCTION, [, ACTION-IF-FOUND [,
dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
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AC_DEFINE_UNQUOTED($ac_tr_lib)
KRB_LIBS="-l$1 $KRB_LIBS"
]], [$3]),
ifelse([$4], , , [$4
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dnl LSH_LIB_ARGP(ACTION-IF-OK, ACTION-IF-BAD)
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ac_argp_save_LDFLAGS="$LDFLAGS"
ac_argp_ok=no
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AC_SEARCH_LIBS(argp_parse, argp,
[ LSH_RPATH_FIX
AC_CACHE_CHECK([for working argp],
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[ AC_TRY_RUN(
[#include <argp.h>
#include <stdlib.h>
static const struct argp_option
options[] =
{
{ NULL, 0, NULL, 0, NULL, 0 }
};
struct child_state
{
int n;
};
static error_t
child_parser(int key, char *arg, struct argp_state *state)
{
struct child_state *input = (struct child_state *) state->input;
switch(key)
{
default:
return ARGP_ERR_UNKNOWN;
case ARGP_KEY_END:
if (!input->n)
input->n = 1;
break;
}
return 0;
}
const struct argp child_argp =
{
options,
child_parser,
NULL, NULL, NULL, NULL, NULL
};
struct main_state
{
struct child_state child;
int m;
};
static error_t
main_parser(int key, char *arg, struct argp_state *state)
{
struct main_state *input = (struct main_state *) state->input;
switch(key)
{
default:
return ARGP_ERR_UNKNOWN;
case ARGP_KEY_INIT:
state->child_inputs[0] = &input->child;
break;
case ARGP_KEY_END:
if (!input->m)
input->m = input->child.n;
break;
}
return 0;
}
static const struct argp_child
main_children[] =
{
{ &child_argp, 0, "", 0 },
{ NULL, 0, NULL, 0}
};
static const struct argp
main_argp =
{ options, main_parser,
NULL,
NULL,
main_children,
NULL, NULL
};
int main(int argc, char **argv)
{
struct main_state input = { { 0 }, 0 };
char *v[2] = { "foo", NULL };
argp_parse(&main_argp, 1, v, 0, NULL, &input);
if ( (input.m == 1) && (input.child.n == 1) )
return 0;
else
return 1;
}
], lsh_cv_lib_argp_works=yes,
lsh_cv_lib_argp_works=no,
lsh_cv_lib_argp_works=no)])
if test x$lsh_cv_lib_argp_works = xyes ; then
ac_argp_ok=yes
else
# Reset link flags
LIBS="$ac_argp_save_LIBS"
LDFLAGS="$ac_argp_save_LDFLAGS"
fi])
if test x$ac_argp_ok = xyes ; then
ifelse([$1],, true, [$1])
else
ifelse([$2],, true, [$2])
fi
])
dnl LSH_GCC_ATTRIBUTES
dnl Check for gcc's __attribute__ construction
AC_DEFUN([LSH_GCC_ATTRIBUTES],
[AC_CACHE_CHECK(for __attribute__,
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[ AC_TRY_COMPILE([
#include <stdlib.h>
],
[
static void foo(void) __attribute__ ((noreturn));
static void __attribute__ ((noreturn))
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{
exit(1);
}
],
lsh_cv_c_attribute=yes,
lsh_cv_c_attribute=no)])
AH_TEMPLATE([HAVE_GCC_ATTRIBUTE], [Define if the compiler understands __attribute__])
if test "x$lsh_cv_c_attribute" = "xyes"; then
AC_DEFINE(HAVE_GCC_ATTRIBUTE)
fi
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# define UNUSED
#endif
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# Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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AC_SUBST([PACKAGE], [$1])dnl
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
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