63 lines
2.2 KiB
Plaintext
63 lines
2.2 KiB
Plaintext
dnl Special Autoconf macros for GNU tar -*- autoconf -*-
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dnl Copyright 2009-2019 Free Software Foundation, Inc.
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dnl
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dnl This file is part of GNU tar.
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dnl
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dnl GNU tar is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl GNU tar is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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AC_DEFUN([TAR_COMPR_PROGRAM],[
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m4_pushdef([tar_compr_define],translit($1,[a-z+-],[A-ZX_])[_PROGRAM])
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m4_pushdef([tar_compr_var],[tar_cv_compressor_]translit($1,[+-],[x_]))
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AC_ARG_WITH($1,
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AC_HELP_STRING([--with-]$1[=PROG],
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[use PROG as ]$1[ compressor program]),
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[tar_compr_var=${withval}],
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[tar_compr_var=m4_if($2,,$1,$2)])
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AC_DEFINE_UNQUOTED(tar_compr_define, "$tar_compr_var",
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[Define to the program name of ]$1[ compressor program])])
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# Provide <attr/xattr.h>, if necessary
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AC_DEFUN([TAR_HEADERS_ATTR_XATTR_H],
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[
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AC_ARG_WITH([xattrs],
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AS_HELP_STRING([--without-xattrs], [don't use linux extended attributes]),
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[], [with_xattrs=maybe]
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)
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# First check for <sys/xattr.h>
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AC_CHECK_HEADERS([sys/xattr.h])
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AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_sys_xattr_h" = yes])
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if test "$ac_cv_header_sys_xattr_h" != yes; then
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AC_CHECK_HEADERS([attr/xattr.h])
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AM_CONDITIONAL([TAR_COND_XATTR_H],[test "$ac_cv_header_attr_xattr_h" = yes])
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fi
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if test "$with_xattrs" != no; then
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for i in getxattr fgetxattr lgetxattr \
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setxattr fsetxattr lsetxattr \
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listxattr flistxattr llistxattr
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do
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AC_SEARCH_LIBS($i, attr)
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eval found=\$ac_cv_search_$i
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test "$found" = "no" && break
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done
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if test "$found" != no; then
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AC_DEFINE([HAVE_XATTRS],,[Define when we have working linux xattrs.])
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fi
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fi
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])
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