Hello, The attached patch is a proposal to #undef offsetof before the #define we do in ginclude/stddef.h, which prevents redefinition warnings from dg tests passing -Wsystem-headers on systems which provide a definition in system headers, such as VxWorks.
We have been using this for a while with gcc-11 based toolchains
for a wide range of configurations (linux and windows hosts, native
and cross, bare board or VxWorks for a range of CPUs).
This also passes build + sanity test with gcc-12 for
powerpc64-vxworks7r2, then full bootstrap + regression testing
for mainline on x86_64-linux.
Ok to commit?
Thanks in advance!
With Kind Regards,
Olivier
2022-09-30 Olivier Hainque <hain...@adacore.com>
gcc/
* ginclude/stddef.h: #undef offsetof before #define.
0003-undef-offsetof-before-defining-it-in-stddef.h.patch
Description: Binary data
