don't exit on tar errors in wireless-tools - sgid flag on directory not accepted on freebsd

SVN-Revision: 5085

package/wireless-tools/Makefile

@@ -16,6 +16,7 @@ PKG_SOURCE:=wireless_tools.$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux
 PKG_MD5SUM:=599c94497f9c9073c7b052d3dcb7cd16
 PKG_CAT:=zcat
+TAR_OPTIONS += || true
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/wireless_tools.28
 PKG_INSTALL_DIR:=$(PKG_BUILD_DIR)/ipkg-install