mit-krb5-devel: don't leak build flags into krb5-config

srcpkgs/mit-krb5/template

@@ -1,7 +1,7 @@
 # Template file for 'mit-krb5'
 pkgname=mit-krb5
 version=1.15.1
-revision=1
+revision=2
 short_desc="MIT Kerberos 5 implementation"
 maintainer="Juan RP <xtraeme@voidlinux.eu>"
 license="MIT"
@@ -27,6 +27,10 @@ do_configure() {
 		acx_pthread_ok=yes ac_cv_func_regcomp=yes ac_cv_printf_positional=yes \
 		krb5_cv_attr_constructor_destructor=yes,yes
 }
+pre_build() {
+	sed -i "/LDFLAGS=/d" src/build-tools/krb5-config.in
+}
+
 do_build() {
 	make
 }