[Chicken-hackers] [PATCH] Fix complex (platform) clauses in .egg files

[Peter Bex]

Hi all,

As I was trying to install spiffy on Haiku, I noticed that the
posix-groups egg (a dependency) refused to install because haiku
is not unix, and posix-groups.egg has a (platform unix) clause.

So I changed it to (platform (or unix haiku)) and it still failed.
If I swapped the two it would succeed.  It turns out that the
check-platform procedure in chicken-install.scm was written with
the idea that fail was a continuation, or something.  But it
isn't, so it would just raise an early error when it encountered
"unix" on the haiku platform, where that feature is not defined.

I also noticed that "and" will always fail, even if you do just
(platform (and unix)), which should be equivalent to (platform unix).

Attached is a relatively straightforward patch that simply allows
the loop to finish and return #t or #f, and if #f it will error.

Cheers,
Peter

0001-Fix-behaviour-of-complex-platform-clauses-in-.egg-fi.patch
Description: Text Data

signature.asc
Description: PGP signature