diff options
Diffstat (limited to 'm4/xattr.m4')
| -rw-r--r-- | m4/xattr.m4 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/m4/xattr.m4 b/m4/xattr.m4 new file mode 100644 index 0000000..dd3f397 --- /dev/null +++ b/m4/xattr.m4 @@ -0,0 +1,44 @@ +# xattr.m4 - check for Extended Attributes (Linux) +# serial 3 + +# Copyright (C) 2003-2016 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=$enableval], [use_xattr=yes]) + + LIB_XATTR= + AC_SUBST([LIB_XATTR]) + + if test "$use_xattr" = "yes"; then + AC_CHECK_HEADERS([attr/error_context.h attr/libattr.h]) + use_xattr=no + if test $ac_cv_header_attr_libattr_h = yes \ + && test $ac_cv_header_attr_error_context_h = yes; then + xattr_saved_LIBS=$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 + if test $ac_cv_func_attr_copy_file = yes; then + use_xattr=yes + fi + fi + if test $use_xattr = no; then + 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 + fi + AC_DEFINE_UNQUOTED([USE_XATTR], [`test $use_xattr != yes; echo $?`], + [Define if you want extended attribute support.]) +]) |