bamf: get rid of -Werror breaking build

[ci skip]

srcpkgs/bamf/template

@@ -21,6 +21,7 @@ build_options_default="gir vala"
 
 pre_configure() {
 	sed -i configure -e 's;if !($PYTHON -c "import libxslt, libxml2" 2> /dev/null);if false;'
+	sed -i configure -e '/CFLAGS=/s/ \-Werror / /'
 }
 
 post_install() {