Re: [PATCH v1 00/10] Define _GNU_SOURCE for sources using

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On Tue, Apr 30, 2024 at 10:41 PM Muhammad Usama Anjum
<usama.anjum@xxxxxxxxxxxxx> wrote:
> Thanks for the fixes.
> On 5/1/24 6:59 AM, Mark Brown wrote:
> > On Tue, Apr 30, 2024 at 11:50:09PM +0000, Edward Liaw wrote:
> >> 809216233555 ("selftests/harness: remove use of LINE_MAX") introduced
> >> asprintf into kselftest_harness.h, which is a GNU extension and needs
> >> _GNU_SOURCE to either be defined prior to including headers or with the
> >> -D_GNU_SOURCE flag passed to the compiler.
> >
> > This seems like something that should be handled centrally rather than
> > having to go round and audit the users every time some update is made.
> The easiest way I could think of is to add -D_GNU_SOURCE to KHDR_HEADERS
> definition in tools/testing/selftests/Makefile. It wouldn't be obvious from
> KHDR_HEADERS name that there could be other flags in it as well though.

I'll try this approach and see.  It looks like there are also some
Makefiles that don't currently include KHDR_INCLUDES.

Also, this will cause _GNU_SOURCE redefined warnings wherever #define
_GNU_SOURCE is present.  Should I also delete them or wrap them with

> --
> BR,
> Muhammad Usama Anjum

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