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dnl Special Autoconf macros for GNU tar -*- autoconf -*-
dnl Copyright 2009, 2013-2014, 2016 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU tar.
dnl
dnl GNU tar is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl GNU tar is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
AC_DEFUN([TAR_COMPR_PROGRAM],[
m4_pushdef([tar_compr_define],translit($1,[a-z+-],[A-ZX_])[_PROGRAM])
m4_pushdef([tar_compr_var],[tar_cv_compressor_]translit($1,[+-],[x_]))
AC_ARG_WITH($1,
AC_HELP_STRING([--with-]$1[=PROG],
[use PROG as ]$1[ compressor program]),
[tar_compr_var=${withval}],
[tar_compr_var=m4_if($2,,$1,$2)])
AC_DEFINE_UNQUOTED(tar_compr_define, "$tar_compr_var",
[Define to the program name of ]$1[ compressor program])])
# Provide <attr/xattr.h>, if necessary
AC_DEFUN([TAR_HEADERS_ATTR_XATTR_H],
[
AC_ARG_WITH([xattrs],
AS_HELP_STRING([--without-xattrs], [don't use linux extended attributes]),
[], [with_xattrs=maybe]
)
# First check for <sys/xattr.h>
AC_CHECK_HEADERS([sys/xattr.h])
AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_sys_xattr_h" = yes])
if test "$ac_cv_header_sys_xattr_h" != yes; then
AC_CHECK_HEADERS([attr/xattr.h])
AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_attr_xattr_h" = yes])
fi
if test "$with_xattrs" != no; then
for i in getxattr fgetxattr lgetxattr \
setxattr fsetxattr lsetxattr \
listxattr flistxattr llistxattr
do
AC_SEARCH_LIBS($i, attr)
eval found=\$ac_cv_search_$i
test "$found" = "no" && break
done
if test "$found" != no; then
AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
fi
fi
])
|
