Re: Ada on Apple's new procesors

[charlet@adacore.com]

> > Wait, do the FSF GNAT repositories themselves now contain the mods for LLVM instead of obtaining GNAT-LLVM mods from https://github.com/AdaCore/gnat-llvm, which is pure-GPLv3 licensed.
> 
> There was no change required. GNAT has always had an interface to the
> GCC compiler via a glue layer which fits the interface exposed by GNAT.
> GNAT-LLVM just implements the same interface. Read the README in the
> GNAT-LLVM repo, it tells you to download the FSF GNAT.
> 
> > https://github.com/AdaCore/gnat-llvm/blob/master/COPYING3
> > 
> > If mixing FSF GNAT with any 1 or more non-data/non-script (i.e., compiled; linked) source file(s) in https://github.com/AdaCore/gnat-llvm, then RLE evaporates because that 1 or more source file lacks the RLE; hence FSF GNAT-LLVM would become pure GPLv3.
> > 
> 
> The compiler links to GNAT-LLVM, the runtime doesn't.
> 
> Pretty sure that the AdaCore people said it won't fall under GPL.

That's correct, there is no issue here. The GNAT LLVM compiler is a tool and is licensed under GPLv3, which is just fine and the proper license for a tool. The runtime which is linked with your executable comes from the gcc.gnu.org repository and contains the GCC RunTime exception license.