On Sep 11, 2009, at 11:05 AM, Phil Thompson wrote:
It's not so much a problem of Qt supporting Snow (yes, the mkspec
problem, but it seems to be minor), but supporting OSX 64bit, which
covers both Leopard AND Snow. The standard Carbon-based Mac Qt will
never be 64bit. Qt Cocoa is 64bit (I have yet to try it out).
And there is now the extra 64bit-ness of Python in Snow now, which
causes trouble with Python-based software. People WILL update to
Snow
and WILL (and have already) have problems compiling PyQt.
Since Qt Cocoa may take a while to be fully functional and in common
use, PtQt at least needs some way to deal with a 64bit Python
executable (use the arch command where python/pythonw executed when
built for Qt carbon).
Note: I just figured out the problem with the arch command. It's not
broken. There are 2 copies of the python and pythonw executables:
in /
usr/bin and in the Python framework. The /usr/bin exe's are not
symlinks to the framework, and have different file sizes. For some
reason the /usr/bin exe's don't work with arch, but the framework
exe's do. /usr/bin/python2.6 and /usr/bin/pythonw2.6 ARE symlinks to
the framework.
I'm not convinced this is a PyQt problem - even though it affects PyQt
users. If you are on a 64 bit system then you would expect to be
building
64 binaries, ie. 64 bit Qt Cocoa, not 32 Qt Carbon.
Leopard is a 64bit system. But (probably) because all (except apache)
of the Apple-built apps are still 32bit, gcc 4.0 compiles 32bit by
default. You can still compile for 64bit if you want (and the needed
components support it - all system libraries and frameworks are 64bit,
even the python libraries, except the wxpython stuff).
I assume that when Qt
"properly" supports Snow Leopard then that would be the default on
64 bit
systems. In which case the standard build process, and pyuic, will
continue
to work.
The current problems seem to be due to Qt being slow to support Snow
Leopard, or maybe just slow to make Cocoa the default. I don't think
PyQt
should be expected to work around this temporary situation. I'd
change my
mind if you were to say that the Cocoa support was flakey and people
will
be sticking with Qt Carbon for some time to come.
Qt Cocoa is valid on Leopard (32 & 64bit). While the system Python
executable is not 64bit, eventually the python.org Python should be.
And Qt Carbon on Snow is also just as valid, and will probably be
supported (when it's official) for a long time (at least the lifetime
of Leopard), even when Qt Cocoa is standard.
-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/
[Trillian] What are you supposed to do WITH a maniacally depressed
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[Marvin] You think you have problems? What are you supposed to do if
you ARE a maniacally depressed robot? No, don't try and answer, I'm
50,000 times more intelligent than you and even I don't know the
answer...
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