[Bug preprocessor/93109] #undefine suggests #define but not #undef

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93109

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |dmalcolm at gcc dot gnu.org

--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Eric's analysis in comment #1 is correct.

I agree that "#undef" would be a better suggestion for the case in comment #0,
but I don't think I agree with comment #2.  I'm not sure how to fix this, or if
it's worth special-casing it.