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Date:      Wed, 10 Apr 2024 17:50:36 +0000
From:      bugzilla-noreply@freebsd.org
To:        toolchain@FreeBSD.org
Subject:   [Bug 278271] Bug in LLVM's libc++ breaks g++13 (build of math/ceres-solver is broken on armv7)
Message-ID:  <bug-278271-29464-tXZNoeIHGx@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-278271-29464@https.bugs.freebsd.org/bugzilla/>
References:  <bug-278271-29464@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278271

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=3Dlibc++

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=3Dg++13 -stdlib=3Dlibc++

At least, I have makefiles around that do such (actually
via +=3D use on a separate line). (And makefiles for
compiling/building without -stdlib=3D for the same sources.
I sometimes check that both ways work.)

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