GDC 6.1.1 in Arch Linux is [community-testing] now

[Dicebot via D.gnu]

GCC 6.1.1 is currently available in [testing] and matching GDC is 
in [community-testing] - both repos can be enabled in your 
/etc/pacman.conf

Trying it out before they both get promoted to main repo would be 
quite appreciated :)