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Re: [RFC PATCH] Use anonymous union for siginfo_t


On 08/11/2017 07:02 AM, Zack Weinberg wrote:
The catch, however, is that the compiler
used to compile*programs that use glibc*  - not just glibc itself -
must accept the use of this feature (in system headers) even when
running in an older conformance mode.

Perhaps you could survey other non-GCC compilers in use with glibc, as to whether they support this feature. Not just Clang, but also ARM, Cray CCE, Fujitsu/Lahey, IBM XL C/C++, Intel, PGI, Oracle Studio, and maybe PathScale. If recent versions of compilers in practical use on glibc platforms support the feature, that should be good enough.


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