cross-x86_64-linux-musl: unrestrict to all 64bit

srcpkgs/cross-x86_64-linux-musl/template

@@ -12,7 +12,6 @@ _sysroot="/usr/${_triplet}"
 pkgname=cross-${_triplet}
 version=0.33
 revision=2
-archs="i686* x86_64 ppc64le"
 short_desc="Cross toolchain for x86_64 with musl"
 maintainer="Orphaned <orphan@voidlinux.org>"
 homepage="https://www.voidlinux.org/"
@@ -40,6 +39,14 @@ nostrip_files="libcaf_single.a libgcc.a libgcov.a libgcc_eh.a
  libgnarl_pic.a libgnarl.a libgnat_pic.a libgnat.a"
 depends="${pkgname}-libc-${version}_${revision}"
 
+if [ "$XBPS_TARGET_WORDSIZE" != "64" ]; then
+	broken="64-bit crosstoolchain only available on 64-bit host"
+fi
+
+if [ "$XBPS_TARGET_MACHINE" = "x86_64-musl" ]; then
+	broken="Can't build crosstoolchain to itself"
+fi
+
 _apply_patch() {
 	local args="$1" pname="$(basename $2)"