<p>Would it be simpler to not use the version at all for calculating installed package ABI identity?</p>
<p>You could still show it, though.</p>
<div class="gmail_quote">On Oct 3, 2011 6:19 AM, "Joachim Breitner" <<a href="mailto:mail@joachim-breitner.de">mail@joachim-breitner.de</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I’d like to propose that the package (shown by "ghc-pkg field <pkg> id"<br>
and used by "ghc-pkg field <pkg> depends") should only consist of the<br>
first three components of the package version, not all of them.<br>
<br>
By the package versioning policy, if the API stays the same, these<br>
version numbers stay identical. And if the change does not affect the<br>
ABI, the hash stays the same. This would allow upgrades of the package<br>
without having to re-build everything depending on it.<br>
<br>
And if the maintainer does not fully follow the PVP, then it is not a<br>
big deal either; the hash will change and Cabal will enforce rebuilds.<br>
<br>
<br>
One could argue that the version can be removed entirely from the<br>
package id, but it helps the human reader when looking at the "depends"<br>
field of a package.<br>
<br>
<br>
Greetings,<br>
Joachim<br>
<br>
--<br>
Joachim "nomeata" Breitner<br>
<a href="mailto:mail@joachim-breitner.de">mail@joachim-breitner.de</a> | <a href="mailto:nomeata@debian.org">nomeata@debian.org</a> | GPG: 0x4743206C<br>
xmpp: <a href="mailto:nomeata@joachim-breitner.de">nomeata@joachim-breitner.de</a> | <a href="http://www.joachim-breitner.de/" target="_blank">http://www.joachim-breitner.de/</a><br>
<br>
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<br></blockquote></div>