Within gthr-vxworks.h, we prevent C++ errors from missing declarations in some system headers by prepending their inclusion with a
#pragma GCC diagnostic ignored "-Wstrict-prototypes"
But Wstrict-prototypes is internally registered as valid for
C/ObjC only, not C++, and this trick in turn triggers a Wpragma
warning with -Wsystem-headers.
This change just arranges to ignore the secondary warning locally.
We have been using this for a while with gcc-11 based toolchains,
where the only effect was the intended disappearance of a test failure
observed on g++.dg/warn/Wstringop-overflow-6.C.
Sanity checked with a build + basic testing with a gcc-12
compiler, then a mainline build for arm-vxworks7r2.
Cheers
Olivier
2021-02-03 Olivier Hainque <hain...@adacore.com>
* config/gthr-vxworks.h: Prevent Wpragma warning for the
pragma diagnostics on Wstrict-prototypes.
0010-Prevent-secondary-warning-from-diagnostic-tweak-in-g.patch
Description: Binary data
