Re: [PATCH] fortran: Add -static-libquadmath support [PR46539]

[Tobias Burnus <tobias@codesourcery.com>]

On 16.08.22 16:31, Jakub Jelinek via Gcc-patches wrote:
> The following patch is a revival of the
> https://gcc.gnu.org/legacy-ml/gcc-patches/2014-10/msg00771.html
> patch.  While trunk configured against recent glibc and with linker
> --as-needed support doesn't really need to link against -lquadmath
> anymore, there are still other targets where libquadmath is still in
> use.
> As has been discussed, making -static-libgfortran imply statically
> linking both libgfortran and libquadmath is undesirable because of
> the significant licensing differences between the 2 libraries.
> [...]
> So far slightly tested on x86_64-linux (and will bootstrap/regtest
> it there tonight), but I unfortunately don't have a way to test it
> e.g. on Darwin.
>
> Thoughts on this?

Looks good to me – with the caveat of having only limited knowledge of
.spec and Darwin.

> --- gcc/fortran/invoke.texi.jj        2022-05-09 09:09:20.312473272 +0200
> +++ gcc/fortran/invoke.texi   2022-08-16 16:12:47.638203577 +0200
...
> +Please note that the @file{libquadmath} runtime library is licensed under the
> +GNU Lesser General Public License (LGPL), and linking it statically introduces
> +requirements on redistributing the resulting binaries.

"on redistributing" sounds odd to me – "when redistributing" or "on
(the) redistribution of" sounds better to me.

Tobias
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