On Sep 6, 2007, at 17:20, Derek Harland wrote:
On 7/09/2007, at 8:54 AM, Ryan Schmidt wrote:
Well if the goal is simultaneous installation of multiple versions
of python, then a single portfile with variants is not an option,
since you cannot simultaneously install multiple variant versions
of a single port. Only one version of a port can be active at
once. So you need separate ports, as we have now.
I agree. However would it not be possible to (theoretically) have
a variant install extra files, so that something like
port install some-python-package +python2.5 +python2.4
would install files for both python2.4 and 2.5?
I'm not suggesting this as solution ... I don't think its very
nice, its more a question for my own understanding of macports.
Oh. Um... well, yes, but... Most ports need to go through phases,
generally configure, make and make install. Looks like ports in the
python groups get to skip the configure phase, but still need a make
(python setup.py build) and make install (python setup.py) phase.
MacPorts is designed to do these phases once each per port, but if
you wanted to build both python 2.4 and python 2.5 versions of a
port, it would probably need to go through each phase twice, once for
each version of python. Going through a phase more than once is not
so much supported by MacPorts at this point (though some ports come
to mind that try very hard to fake it; see "openssl +universal" which
is quite messy and "php5 +fastcgi +apache[2]" which is less messy but
still not great).
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