no-strict-aliasing?

Roman Divacky rdivacky at freebsd.org
Sun Mar 15 08:13:58 PDT 2009


On Sun, Mar 15, 2009 at 09:52:38AM -0400, Michael Butler wrote:
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> I note that, with the alteration of compile parameters for the kernel,
> the option "-fno-strict-aliasing" is no longer used (for i386).
 
indeed.. it seems that -fno-strict-aliasing is used only when building modules
and/or building on amd64. I dont understand why

> Does the shift to c99/gnu99 mode change the behaviour of the compiler
> such that this is unnecessary or should I be "on the lookout" for
> obscure failures? ;-)

are you referring to my recent commit? that affected world only. kernel
has been building with c99 for.. a long time :)


what was your question again?

roman


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