80 lines
2.5 KiB
Plaintext
80 lines
2.5 KiB
Plaintext
|
# Portability macros for glibc argz. -*- Autoconf -*-
|
||
|
|
#
|
||
|
|
# Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
|
||
|
|
# Written by Gary V. Vaughan <gary@gnu.org>
|
||
|
|
#
|
||
|
|
# 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.
|
||
|
|
|
||
|
|
# serial 5 argz.m4
|
||
|
|
|
||
|
|
AC_DEFUN([gl_FUNC_ARGZ],
|
||
|
|
[gl_PREREQ_ARGZ
|
||
|
|
|
||
|
|
AC_CHECK_HEADERS([argz.h], [], [], [AC_INCLUDES_DEFAULT])
|
||
|
|
|
||
|
|
AC_CHECK_TYPES([error_t],
|
||
|
|
[],
|
||
|
|
[AC_DEFINE([error_t], [int],
|
||
|
|
[Define to a type to use for `error_t' if it is not otherwise available.])
|
||
|
|
AC_DEFINE([__error_t_defined], [1], [Define so that glibc/gnulib argp.h
|
||
|
|
does not typedef error_t.])],
|
||
|
|
[#if defined(HAVE_ARGZ_H)
|
||
|
|
# include <argz.h>
|
||
|
|
#endif])
|
||
|
|
|
||
|
|
ARGZ_H=
|
||
|
|
AC_CHECK_FUNCS([argz_append argz_create_sep argz_insert argz_next \
|
||
|
|
argz_stringify], [], [ARGZ_H=argz.h; AC_LIBOBJ([argz])])
|
||
|
|
|
||
|
|
dnl if have system argz functions, allow forced use of
|
||
|
|
dnl libltdl-supplied implementation (and default to do so
|
||
|
|
dnl on "known bad" systems). Could use a runtime check, but
|
||
|
|
dnl (a) detecting malloc issues is notoriously unreliable
|
||
|
|
dnl (b) only known system that declares argz functions,
|
||
|
|
dnl provides them, yet they are broken, is cygwin
|
||
|
|
dnl releases prior to 16-Mar-2007 (1.5.24 and earlier)
|
||
|
|
dnl So, it's more straightforward simply to special case
|
||
|
|
dnl this for known bad systems.
|
||
|
|
AS_IF([test -z "$ARGZ_H"],
|
||
|
|
[AC_CACHE_CHECK(
|
||
|
|
[if argz actually works],
|
||
|
|
[lt_cv_sys_argz_works],
|
||
|
|
[[case $host_os in #(
|
||
|
|
*cygwin*)
|
||
|
|
lt_cv_sys_argz_works=no
|
||
|
|
if test "$cross_compiling" != no; then
|
||
|
|
lt_cv_sys_argz_works="guessing no"
|
||
|
|
else
|
||
|
|
lt_sed_extract_leading_digits='s/^\([0-9\.]*\).*/\1/'
|
||
|
|
save_IFS=$IFS
|
||
|
|
IFS=-.
|
||
|
|
set x `uname -r | sed -e "$lt_sed_extract_leading_digits"`
|
||
|
|
IFS=$save_IFS
|
||
|
|
lt_os_major=${2-0}
|
||
|
|
lt_os_minor=${3-0}
|
||
|
|
lt_os_micro=${4-0}
|
||
|
|
if test "$lt_os_major" -gt 1 \
|
||
|
|
|| { test "$lt_os_major" -eq 1 \
|
||
|
|
&& { test "$lt_os_minor" -gt 5 \
|
||
|
|
|| { test "$lt_os_minor" -eq 5 \
|
||
|
|
&& test "$lt_os_micro" -gt 24; }; }; }; then
|
||
|
|
lt_cv_sys_argz_works=yes
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
;; #(
|
||
|
|
*) lt_cv_sys_argz_works=yes ;;
|
||
|
|
esac]])
|
||
|
|
AS_IF([test $lt_cv_sys_argz_works = yes],
|
||
|
|
[AC_DEFINE([HAVE_WORKING_ARGZ], 1,
|
||
|
|
[This value is set to 1 to indicate that the system argz facility works])],
|
||
|
|
[ARGZ_H=argz.h
|
||
|
|
AC_LIBOBJ([argz])])])
|
||
|
|
|
||
|
|
AC_SUBST([ARGZ_H])
|
||
|
|
])
|
||
|
|
|
||
|
|
# Prerequisites of lib/argz.c.
|
||
|
|
AC_DEFUN([gl_PREREQ_ARGZ], [:])
|