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Re: [PATCH] Prevent GCC 6 <cstdlib> from including /usr/include/stdlib.h

On 06/13/2016 09:20 AM, Andreas Schwab wrote:

Florian Weimer <fweimer@redhat.com> writes:


On 06/11/2016 12:07 AM, Roland McGrath wrote:

In what way is it not a bug for cstdlib to do #include_next <stdlib.h>?


They are part of the implement in the same way we are.  Why would it be a
bug?


Because <cstdlib> and <stdlib.h> are unrelated headers belonging to
different projects.  Their place in the include order needs to be
controlled independently.
They aren't unrelated, the C++ run-time is a superset of the C run-time. C headers have to be usable from C++, and C++ headers describing glibc functionality need to be compatible with glibc.
As long as the projects are in separate source code repositories, there will be significant friction. That's why I said we should merge them eventually (in the sense that we build their DSOs from a common source code base). 

Florian
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