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[PATCH] PR libstdc++/87587 prevent -Wabi warnings

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Mon, 15 Oct 2018 13:58:44 +0100
Subject: [PATCH] PR libstdc++/87587 prevent -Wabi warnings

The warnings about changes to empty struct parameter passing can be
ignored because the callers are all internal to the library, and so
compiled with the same -fabi-version as the function definitions.

It would be preferable to use #pragma GCC diagnostic warning "-Wabi=12"
to get warnings about any other ABI changes in future versions, but
until PR c++/87611 is fixed the warnings must be completely disabled
with #pragma GCC diagnostic ignroed "-Wabi".

	PR libstdc++/87587
	* src/c++11/cxx11-shim_facets.cc: Suppress -Wabi warnings.

Tested x86_64-linux, committed to trunk.

Attachment: patch.txt
Description: Text document

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