New review comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/49943#discussion_r1573397841

Comment:
```suggestion
build_options="mingw staging xshm"
build_options_default="xshm"
case "$XBPS_TARGET_MACHINE" in
	aarch64*) ;;
	*) build_options_default+=" mingw" ;;
esac
```