[PyKDE] I can't compile PyQt under Linux

[Phil Thompson]

caruso bruno wrote:
> 
> Hi!
> 
> I have some troubles when I compile PyQt (PyQt-3.2rc1-Qt-2.3.1 or the
> previous version). When compiler enter under pyuic drawing, I have these
> errors:
> 
> /bin/sh ../libtool --mode=link g++ -fno-exceptions -O2   -o pyuic
> -L/usr/local/lib/python2.2/site-packages -L/usr/local/qt/lib  uic.o
> widgetdatabase.o domtool.o -lqt -L/usr/X11R6/lib  -lSM -lICE -lX11  -lz
> g++ -fno-exceptions -O2 -o pyuic uic.o widgetdatabase.o domtool.o
> -L/usr/local/lib/python2.2/site-packages -L/usr/local/qt/lib -lqt
> -L/usr/X11R6/lib -lSM -lICE -lX11 -lz
> uic.o: In function `mkBool(bool)':
> uic.o(.text+0x18): undefined reference to `QString::QString(char const*)'
> uic.o: In function `mkBool(QString const&)':
> uic.o(.text+0x48): undefined reference to `operator==(QString const&, char
> const*)'
> uic.o(.text+0x77): undefined reference to `operator==(QString const&, char
> const*)'
> uic.o: In function `toBool(QString const&)':
> uic.o(.text+0xa5): undefined reference to `operator==(QString const&, char
> const*)'
> ...
> domtool.o(.text+0x30d5): undefined reference to `QString::shared_null'
> domtool.o(.text+0x30e3): undefined reference to `QString::shared_null'
> domtool.o(.text+0x30f3): undefined reference to `QString::shared_null'
> collect2: ld returned 1 exit status
> make: *** [pyuic] Erreur 1
> 
> I have many undefined reference to QString, QRegExp and QChar. I use Qt 2.3.1
> since a long time under KDE (2.2.2) and there's no any trouble. Qt was
> compiled with GCC 2.96, SIP-3.2rc1 and PyQt-3.2rc1 with GCC 3.04. If I type
> nm /usr/local/qt/lib lib*.so |grep QChar for example, I don't find this
> symbol but something similar like __5QCharc. I could use the RPM package but
> I prefer to undestand what's happend (if possible). Any idea?

Mixing libraries compiled with different versions of g++ is usually a
bad idea because the name mangling rules seem to change between each
version.

Phil