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From: "kallisti5 at unixzen dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/100017] [11/12 regression] error: 'fenv_t' has not
 been declared in '::' -- canadian compilation fails
Date: Thu, 06 Jan 2022 18:03:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100017

--- Comment #64 from Alexander von Gluck <kallisti5 at unixzen dot com> ---
(In reply to cqwrteur from comment #61)
> TBH, I failed to see how cross-compile in llvm is simple compared to GCC.

I mean... bootstrap.  Compiling Canadian toolchains to compile non-Canadian
toolchains is a pretty difficult task.   It's a big reason the BSD's went
clang.

*ANYWAY* wasn't looking to start a holy war.. just point out that Canadian
builds in gcc are important and should likely have a few base tests.

(In reply to Jonathan Wakely from comment #62)
> But that's off topic for GCC's bugzilla, please try to focus.

Indeed.   Back on topic, the patchset listed definitely does solve the issue
for us.   I didn't commit it to our gcc fork (that we plan on working to
upstream for Haiku support) though since a final iteration wasn't decided /
committed yet here.=