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From: Florian Weimer <fw@deneb.enyo.de>
To: nu quaquaraqua via Gcc-help <gcc-help@gcc.gnu.org>
Subject: Re: [OpenMP] 40% slow down when setting OMP_PLACES="sockets"
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* nu quaquaraqua via Gcc-help:

> okay, I think I can already answer myself why Clang is unaffected by this
> setting. The environment variables in libgomp are parsed in
>
> static void __attribute__((constructor))
> initialize_env (void)
>
> this is attribute is GCC specific and basically ignored by Clang.

Why do you think that?  Clang doesn't ignore it (at least not for GNU
targets such as Fedora).