[PyQt] Problem linking PyQt 4.3.3 on OS X 10.4]
trotterdylan at yahoo.ca
Fri Apr 11 01:49:10 BST 2008
Thanks for the tip. I tried working around it using the method you suggested,
but I got unnerving warnings about conflicts due to the flat namespace. I tried
using "-undefined dynamic_lookup" which actually seemed to solve the issue. But
I then had to add /usr/local/Trolltech/Qt-4.3.4/lib to my DYLD_FRAMEWORK_PATH
in order to get it to link properly at runtime. Examining the PyQt .so's with
otool finally allowed me to connect the dots since it indicated that they were
I had no idea this installation even existed, but it explained everything. The
configure.py script did correctly identify my /usr/local install of Qt, but it
also added /opt/local/Trolltech/Qt-4.2.1/lib to my framework path on link, so
that's why the link errors. In any case, I think there is something strange
with the configure.py script, but I'm not familiar enough with it to identify
the problem. I suspect it'll be reproducible in similar circumstances.
Hope no one wasted their time on this one!
--- Darryl Wallace <darryl.wallace at prosensus.ca> wrote:
> Hello Dylan,
> I had a similar error with QtOpenGL.so when compiling PyQt4 on the OSX.
> This occured while running 'make' and I had to go into the folder
> /QtOpenGL and edit the MakeFile.
> I had to find the line that started with LFLAG and add "-flat_namespace
> -undefined suppress" at the end (without the quotes).
> Perhaps this will work when the error is on QtCore.so. I don't remember
> the cause of this problem, however.
> The tip was found on this blog giving a brief tutorial on building Qt4
> and PyQt on Mac OSX:
> There is a comment near the bottom by someone named "Dexter" who gives
> the above solution.
> Did you install Qt4 from the .dmg package?
> Dylan Trotter wrote:
> > I'm getting undefined symbols when I try to compile PyQt on OS X. The
> > error
> > message is identical to the one mentioned in this thread:
> > http://firstname.lastname@example.org/msg11309.html
> > I've tried PyQt 4.3.3 with Qt 4.3.4 and 4.3.3 with no success. Has anyone
> > encountered this and found a solution?
> > Thanks,
> > -dt
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