On 10 February 2005 22:29, Peter Simons wrote:
Simon Marlow writes:
The general syntax of package ids is:
pkgid ::= pkg ('-' version)? pkg ::= (alphanum|'-')+ version ::= (digit+) ('.' digit+)* ('-' alphanum+)*
Thanks. I gave my package the version "hsdns-0.0-2005-02-10" and that fixed the problem.
You should be aware that the version tags (i.e. -2005-02-10) are ignored by Cabal when determining whether dependencies are satisfied. That is, the ordering on versions ignores the tags.
Perhaps we should change the syntax of package ids though?
In my humble opinion, GHC shouldn't try to guess what version identifiers mean; I would treat them as a literal strings without any parsing. But that's probably just me.
Mostly they are ignored, only parsed. Cabal is the only part of the systen that actually imposes a meaning, in terms of an ordering, on versions. Cheers, Simon