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Newsgroups: comp.lang.ada
Date: Thu, 25 Jun 2020 00:21:01 -0700 (PDT)
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Subject: Re: Ada on Apple's new procesors
From: charlet@adacore.com
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Xref: reader01.eternal-september.org comp.lang.ada:59219
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> > Wait, do the FSF GNAT repositories themselves now contain the mods for =
LLVM instead of obtaining GNAT-LLVM mods from https://github.com/AdaCore/gn=
at-llvm, which is pure-GPLv3 licensed.
>=20
> 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.
>=20
> > https://github.com/AdaCore/gnat-llvm/blob/master/COPYING3
> >=20
> > If mixing FSF GNAT with any 1 or more non-data/non-script (i.e., compil=
ed; linked) source file(s) in https://github.com/AdaCore/gnat-llvm, then RL=
E evaporates because that 1 or more source file lacks the RLE; hence FSF GN=
AT-LLVM would become pure GPLv3.
> >=20
>=20
> The compiler links to GNAT-LLVM, the runtime doesn't.
>=20
> 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 an=
d 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.g=
nu.org repository and contains the GCC RunTime exception license.