cross-x86_64-linux-musl: apply musl patches

[ci skip]

srcpkgs/cross-x86_64-linux-musl/template

@@ -160,6 +160,13 @@ _musl_build() {
 	cd ${wrksrc}/musl-${_musl_version}
 	msg_normal "Building cross musl libc\n"
 
+	# Apply musl patches if there are any
+	if [ -d "${XBPS_SRCPKGDIR}/musl/patches" ]; then
+		for f in ${XBPS_SRCPKGDIR}/musl/patches/*.patch; do
+			_apply_patch -p0 "$f"
+		done
+	fi
+
 	CC="${_triplet}-gcc" CFLAGS="-Os -pipe -fPIC ${_archflags}" \
 		./configure --prefix=/usr