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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98753] -Wfree-nonheap-object on Bison generated code
Date: Tue, 19 Jan 2021 20:55:37 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98753

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2021-01-19
     Ever confirmed|0                           |1
                 CC|                            |msebor at gcc dot gnu.org

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
The attached file depends on a number of headers.  To reproduce a problem we
need a standalone test case that can be compiled on its own.  One way to do
that is to use the -E option to GCC to obtain the translation unit and
attaching that.

That said, based on the description I suspect the warning is a false positi=
ve
with the same root cause as pr54202.  Until a better solution is available =
in
GCC the workaround is to suppress the warning, either by #pragma GCC
diagnostic, or by using -Wno-free-nonheap-object on the command line.=