xbps-src-utils: unbreak cross build.

srcpkgs/xbps-src-utils/template

@@ -3,7 +3,6 @@ pkgname=xbps-src-utils
 version=20140214
 revision=1
 build_style=configure
-configure_args="--prefix=/usr --etcdir=/etc"
 hostmakedepends="pkg-config"
 makedepends="libxbps-devel"
 short_desc="Various tools for xbps-src in C (like repo-checkvers)"
@@ -16,3 +15,7 @@ do_fetch() {
 	msg_normal " Fetching source from $url ...\n"
 	git clone ${url} ${pkgname}-${version}
 }
+
+do_configure() {
+	./configure --prefix=/usr --etcdir=/etc
+}