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Date:      Sat, 8 Mar 2003 12:28:13 -0500 (EST)
From:      Garrett Wollman <wollman@lcs.mit.edu>
To:        Craig Rodrigues <rodrigc@attbi.com>
Cc:        freebsd-current@FreeBSD.ORG
Subject:   #warning must be protected by #if __GNUC__ in headers?
Message-ID:  <200303081728.h28HSDWM039984@khavrinen.lcs.mit.edu>
In-Reply-To: <20030308161943.GA54921@attbi.com>
References:  <20030308161943.GA54921@attbi.com>

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<<On Sat, 8 Mar 2003 11:19:43 -0500, Craig Rodrigues <rodrigc@attbi.com> said:

> Does the use of #warning need to be protected by
> #if __GNUC__ in FreeBSD header files?

No, it needs to be replaced by the standard `#error' directive
instead.  I asked portmgr to do a run on the portsd cluster with this
change to look for ports that mistakenly include this file, but I
never heard back and portmgr is now busy doing the packages for 4.8.

`#if __GNUC__' wouldn't help matters; every preprocessor has to read
and interpret every preprocessor directive (so that `#else' and
`#endif' can be recognized).

-GAWollman


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