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Re: [Xen-devel] [PATCH] xen: Don't use -nostdinc flags with CLANG

On 11/02/14 08:53, Tim Deegan wrote:
At 23:29 +0000 on 10 Feb (1392071374), Julien Grall wrote:
Commit 06a9c7e "xen: move -nostdinc into common Rules.mk." breaks
compilation with clang:

In file included from sched_sedf.c:8:
In file included from /home/julieng/works/xen/xen/include/xen/lib.h:5:
/home/julieng/works/xen/xen/include/xen/stdarg.h:20:12: error: 'stdarg.h' file
not found with <angled> include; use "quotes" instead

Looks like on your system stdarg.h doesn't live in a compiler-specific
path, like we have for the BSDs.  I think we should just go to using
our own definitions for stdarg/stdbool everywhere; trying to chase the
compiler-specific versions around is a PITA, and the pieces we
actually need are trivial.

For BSDs, we are using our own stdargs/stdbool. So we don't include the system <stdarg.h>.

Linux is using $(CC) -print-file-name=include to get the right path. It works with both gcc and clang on Linux distos, but not on FreeBSD.

Julien Grall

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