| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374 |
- # Portability macros for glibc argz. -*- Autoconf -*-
- #
- # Copyright (C) 2004-2007, 2011-2015 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 1 ltargz.m4
- AC_DEFUN([LT_FUNC_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])
- LT_ARGZ_H=
- AC_CHECK_FUNCS([argz_add argz_append argz_count argz_create_sep argz_insert \
- argz_next argz_stringify], [], [LT_ARGZ_H=lt__argz.h; AC_LIBOBJ([lt__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 "$LT_ARGZ_H"],
- [AC_CACHE_CHECK(
- [if argz actually works],
- [lt_cv_sys_argz_works],
- [[case $host_os in #(
- *cygwin*)
- lt_cv_sys_argz_works=no
- if test no != "$cross_compiling"; 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 1 -lt "$lt_os_major" \
- || { test 1 -eq "$lt_os_major" \
- && { test 5 -lt "$lt_os_minor" \
- || { test 5 -eq "$lt_os_minor" \
- && test 24 -lt "$lt_os_micro"; }; }; }; then
- lt_cv_sys_argz_works=yes
- fi
- fi
- ;; #(
- *) lt_cv_sys_argz_works=yes ;;
- esac]])
- AS_IF([test yes = "$lt_cv_sys_argz_works"],
- [AC_DEFINE([HAVE_WORKING_ARGZ], 1,
- [This value is set to 1 to indicate that the system argz facility works])],
- [LT_ARGZ_H=lt__argz.h
- AC_LIBOBJ([lt__argz])])])
- AC_SUBST([LT_ARGZ_H])
- ])
|
