New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/21340#issuecomment-620073277

Comment:
we have both musl and gnu

```
q66@moca: /home/q66/void-packages$ ls srcpkgs|grep cross-x86_64
lrwxrwxrwx 1 q66 q66   24 Jan 27  2019 cross-i686-w64-mingw32 -> cross-x86_64-w64-mingw32
lrwxrwxrwx 1 q66 q66   24 Apr 23  2019 cross-i686-w64-mingw32-crt -> cross-x86_64-w64-mingw32
drwxr-xr-x 3 q66 q66 4096 Mar 29 18:14 cross-x86_64-linux-gnu
lrwxrwxrwx 1 q66 q66   22 Mar 29 18:14 cross-x86_64-linux-gnu-libc -> cross-x86_64-linux-gnu
drwxrwxr-x 3 q66 q66 4096 Mar 29 07:30 cross-x86_64-linux-musl
lrwxrwxrwx 1 q66 q66   23 Dec  9  2018 cross-x86_64-linux-musl-libc -> cross-x86_64-linux-musl
drwxr-xr-x 2 q66 q66 4096 Mar 15 21:04 cross-x86_64-w64-mingw32
lrwxrwxrwx 1 q66 q66   24 Apr 23  2019 cross-x86_64-w64-mingw32-crt -> cross-x86_64-w64-mingw32
q66@moca: /home/q66/void-packages$ ls common/cross-profiles|grep x86
-rw-r--r-- 1 q66 q66 360 Aug  5  2019 x86_64-musl.sh
-rw-r--r-- 1 q66 q66 343 Mar 29 18:11 x86_64.sh
```