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From: "qinzhao at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug preprocessor/96391] [10/11 Regression] internal compiler error:
 in linemap_compare_locations, at libcpp/line-map.c:1359
Date: Wed, 10 Feb 2021 16:08:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96391

--- Comment #17 from qinzhao at gcc dot gnu.org ---
(In reply to David Malcolm from comment #15)


> where:
>
> (gdb) call inform (loc_a, "loc_a")
> In file included from
> /usr/i686-w64-mingw32/sys-root/mingw/include/minwindef.h:163,
>                  from
> /usr/i686-w64-mingw32/sys-root/mingw/include/windef.h:8,
>                  from
> /usr/i686-w64-mingw32/sys-root/mingw/include/windows.h:69,
>                  from
> /builddir/build/BUILD/wine-gecko-2.47.1/wine-gecko-2.47.1/widget/windows/
> AudioSession.cpp:7,
>                  from
> /builddir/build/BUILD/wine-gecko-2.47.1/wine-gecko-2.47.1-x86/widget/wind=
ows/
> Unified_cpp_widget_windows0.cpp:2:
> /usr/i686-w64-mingw32/sys-root/mingw/include/cfgmgr32.h: At global scope:
> /usr/i686-w64-mingw32/sys-root/mingw/include/cfgmgr32.h:19: note: loc_a
>    19 |   typedef CONST VOID *PCVOID;

Is the above line the failing point for the testing file?

there is a "CONST" qualifier. I am not sure whether it's helpful or not: we
found that deleting "CONST" from the source code helped the compilation to
succeed.=