musl-legacy-compat: restrict archs to *-musl

srcpkgs/musl-legacy-compat/template

@@ -2,17 +2,13 @@
 pkgname=musl-legacy-compat
 version=0.3
 revision=3
+archs="*-musl"
 bootstrap=yes
 short_desc="Legacy compatibility headers for the musl libc"
 maintainer="Enno Boland <gottox@voidlinux.org>"
 license="BSD-2-Clause, BSD-3-Clause"
 homepage="http://www.voidlinux.org"
 
-case "$XBPS_TARGET_MACHINE" in
-	*-musl) ;;
-	#*) broken="Only valid for musl systems";;
-esac
-
 do_install() {
 	for f in ${FILESDIR}/*.h; do
 		vinstall ${f} 644 usr/include/sys