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# xattr.m4 - check for Extended Attributes (Linux)
# Copyright (C) 2003, 2008-2010 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.
# Originally written by Andreas Gruenbacher.
# http://www.suse.de/~agruen/coreutils/5.91/coreutils-xattr.diff
AC_DEFUN([gl_FUNC_XATTR],
[
AC_ARG_ENABLE([xattr],
AC_HELP_STRING([--disable-xattr],
[do not support extended attributes]),
[use_xattr=$enableval], [use_xattr=yes])
if test "$use_xattr" = "yes"; then
AC_CHECK_HEADERS([attr/error_context.h attr/libattr.h])
if test $ac_cv_header_attr_libattr_h = yes \
&& test $ac_cv_header_attr_error_context_h = yes; then
use_xattr=1
else
use_xattr=0
AC_MSG_WARN([libattr development library was not found or not usable.])
AC_MSG_WARN([AC_PACKAGE_NAME will be built without xattr support.])
fi
AC_DEFINE_UNQUOTED([USE_XATTR], [$use_xattr],
[Define if you want extended attribute support.])
LIB_XATTR=
xattr_saved_LIBS=$LIBS
AC_SEARCH_LIBS([attr_copy_file], [attr],
[test "$ac_cv_search_attr_copy_file" = "none required" ||
LIB_XATTR=$ac_cv_search_attr_copy_file])
AC_CHECK_FUNCS([attr_copy_file])
LIBS=$xattr_saved_LIBS
AC_SUBST([LIB_XATTR])
fi
])
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