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Re: Patch: fix PR preprocessor/37549
On Wed, 1 Apr 2009, Tom Tromey wrote:
> >>>>> "Joseph" == Joseph S Myers <joseph@codesourcery.com> writes:
>
> Joseph> OK with a testcase (you could test that -dD doesn't output the __STDC__
> Joseph> define, for example, and that it doesn't output a define given by a -D
> Joseph> option).
>
> Oh, I didn't realize that it should skip -D options.
> That will require a different patch.
That was certainly the semantics before it changed in 3.0 without a
documentation change. (At that time a lot more built-in macros were
defined using specs, so not skipping -D options would have given very
confusingly inconsistent results regarding which built-in macros were
shown and which weren't.)
--
Joseph S. Myers
joseph@codesourcery.com