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Contents of /ircd-hybrid/trunk/m4/ltargz.m4

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Revision 5395 - (show annotations)
Tue Jan 20 14:03:27 2015 UTC (8 years ago) by michael
File size: 2569 byte(s)
- libtool 2.4.5, automake 1.15

1 # Portability macros for glibc argz. -*- Autoconf -*-
2 #
3 # Copyright (C) 2004-2007, 2011-2015 Free Software Foundation, Inc.
4 # Written by Gary V. Vaughan <gary@gnu.org>
5 #
6 # This file is free software; the Free Software Foundation gives
7 # unlimited permission to copy and/or distribute it, with or without
8 # modifications, as long as this notice is preserved.
9
10 # serial 1 ltargz.m4
11
12 AC_DEFUN([LT_FUNC_ARGZ], [
13 AC_CHECK_HEADERS([argz.h], [], [], [AC_INCLUDES_DEFAULT])
14
15 AC_CHECK_TYPES([error_t],
16 [],
17 [AC_DEFINE([error_t], [int],
18 [Define to a type to use for 'error_t' if it is not otherwise available.])
19 AC_DEFINE([__error_t_defined], [1], [Define so that glibc/gnulib argp.h
20 does not typedef error_t.])],
21 [#if defined(HAVE_ARGZ_H)
22 # include <argz.h>
23 #endif])
24
25 LT_ARGZ_H=
26 AC_CHECK_FUNCS([argz_add argz_append argz_count argz_create_sep argz_insert \
27 argz_next argz_stringify], [], [LT_ARGZ_H=lt__argz.h; AC_LIBOBJ([lt__argz])])
28
29 dnl if have system argz functions, allow forced use of
30 dnl libltdl-supplied implementation (and default to do so
31 dnl on "known bad" systems). Could use a runtime check, but
32 dnl (a) detecting malloc issues is notoriously unreliable
33 dnl (b) only known system that declares argz functions,
34 dnl provides them, yet they are broken, is cygwin
35 dnl releases prior to 16-Mar-2007 (1.5.24 and earlier)
36 dnl So, it's more straightforward simply to special case
37 dnl this for known bad systems.
38 AS_IF([test -z "$LT_ARGZ_H"],
39 [AC_CACHE_CHECK(
40 [if argz actually works],
41 [lt_cv_sys_argz_works],
42 [[case $host_os in #(
43 *cygwin*)
44 lt_cv_sys_argz_works=no
45 if test no != "$cross_compiling"; then
46 lt_cv_sys_argz_works="guessing no"
47 else
48 lt_sed_extract_leading_digits='s/^\([0-9\.]*\).*/\1/'
49 save_IFS=$IFS
50 IFS=-.
51 set x `uname -r | sed -e "$lt_sed_extract_leading_digits"`
52 IFS=$save_IFS
53 lt_os_major=${2-0}
54 lt_os_minor=${3-0}
55 lt_os_micro=${4-0}
56 if test 1 -lt "$lt_os_major" \
57 || { test 1 -eq "$lt_os_major" \
58 && { test 5 -lt "$lt_os_minor" \
59 || { test 5 -eq "$lt_os_minor" \
60 && test 24 -lt "$lt_os_micro"; }; }; }; then
61 lt_cv_sys_argz_works=yes
62 fi
63 fi
64 ;; #(
65 *) lt_cv_sys_argz_works=yes ;;
66 esac]])
67 AS_IF([test yes = "$lt_cv_sys_argz_works"],
68 [AC_DEFINE([HAVE_WORKING_ARGZ], 1,
69 [This value is set to 1 to indicate that the system argz facility works])],
70 [LT_ARGZ_H=lt__argz.h
71 AC_LIBOBJ([lt__argz])])])
72
73 AC_SUBST([LT_ARGZ_H])
74 ])

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