Wireshark-dev: Re: [Wireshark-dev] New GCC, new option required?
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From: Bill Meier <wmeier@xxxxxxxxxxx>
Date: Wed, 13 Jul 2011 10:23:48 -0400
On 7/13/2011 8:05 AM, Jaap Keuter wrote:

Hi list,

I think we need a new GCC option added to configure.in:

AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wno-unused-but-set-variable)

This option came into existence with GCC 4.6 and is causing havoc all over.
I've been going through a lot of dissectors, many of which have either:
* unused set variables
* variables set for a legitimate purpose, but not used (yet)
* bugs
I've fixes for a number of the (non-generated) dissectors and will commit them today. 

Re:

> AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wno-unused-but-set-variable)
Is there a (reasionably easy) way to use this option only when compiling in the .../dissectors directory ?
(I think that I've previously addressed the "unused_but_set" warnings for many (all ?) of the other directories). (SVN 37600 & following...) 

Bill