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Date: Mon, 20 Sep 2010 09:50:59 +0000
From: David Xu <davidxu@freebsd.org>
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Cc: David Schultz <das@freebsd.org>, Marcel Moolenaar <xcllnt@mac.com>
Subject: Per-source CFLAGS again
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I found a topic about per-source CFLAGS,
http://lists.freebsd.org/pipermail/freebsd-arch/2003-June/000906.html

and it seems the patch was never committed, why ?
I feel it is useful because I want to compile those files which
have cancellation points with compiler flag -fexceptions, for example,
POSIX semaphore cancellation point in libc must be compiled with
-fexceptions to support stack unwinding.

Regards,
David Xu