[Bug 278271] Bug in LLVM's libc++ breaks g++13 (build of math/ceres-solver is broken on armv7)

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 10 Apr 2024 17:50:36 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278271

Mark Millard <marklmi26-fbsd@yahoo.com> changed:

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--- Comment #6 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Dimitry Andric from comment #3)

-stdlib=libc++

is what is involved. Were you explicit about it? You
need to be: it is not the default for any lang/gcc* that
I'm aware of.

That likely can be included in the text for CXX:

CXX=g++13 -stdlib=libc++

At least, I have makefiles around that do such (actually
via += use on a separate line). (And makefiles for
compiling/building without -stdlib= for the same sources.
I sometimes check that both ways work.)

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