Faster linker

[Kagamin]

On Friday, 9 November 2018 at 15:30:24 UTC, Joakim wrote:
> I plan on moving the native packages for the Termux app on 
> Android to use -link-internally by default (they currently 
> default to clang/bfd), since it should be straightforward to 
> add the necessary linker flags and logic for that limited 
> environment. Maybe we could do that for Mac and even Windows 
> someday too, but I can't imagine we'll ever have an official 
> ldc that works for every linux distro! ;)

Can't Debian-based systems be covered? It may make sense to have 
a config section for internal linker arguments, so that if it 
doesn't work, cc can still be used.