+AH_TEMPLATE(HAVE_XATTR, [define to compile support for filesystem extended attributes])
+AC_ARG_WITH(xattr, [ --with-xattr Enable XATTR support])
+HAS_XATTR=""
+if test "$with_xattr" = no; then HAS_XATTR=no; fi
+if test -z "$HAS_XATTR"; then
+ AC_CHECK_LIB(attr, getxattr, [:], [HAS_XATTR=no])
+fi
+if test -z "$HAS_XATTR"; then
+ AC_CHECK_HEADER(attr/xattr.h, [], [HAS_XATTR=no])
+fi
+if test "$HAS_XATTR" != no; then HAS_XATTR=yes; fi
+if test "$with_xattr" = yes -a "$HAS_XATTR" = no; then
+ AC_MSG_ERROR([*** cannot find xattr support on this system])
+fi
+if test "$HAS_XATTR" = yes; then
+ XATTR_LIBS=-lattr
+ AC_DEFINE(HAVE_XATTR)
+fi
+AC_SUBST(XATTR_LIBS)
+