[Chicken-hackers] [PATCH] Fix crash from #1493

[Peter Bex]

Hi all,

Megane found an interesting case where the macro-expander would
crash hard (at least in a debugbuild) when a macro expands to a
macro definition for an identifier that's already bound to a
macro. 

After some consideration I believe megane's patch is correct,
so attached is that fix, plus a test case.

This could also go to the chicken-4 branch.

Cheers,
Peter

0001-When-looking-up-symbol-aliases-ignore-macros-so-we-d.patch
Description: Text Data

signature.asc
Description: PGP signature