[PyQt] Can't build latest PyQt snapshot on Ubuntu

Andreas Pakulat apaku at gmx.de
Sat Jul 21 00:24:28 BST 2007

On 20.07.07 22:51:55, Andreas Pakulat wrote:
> On 20.07.07 12:43:43, Phil Thompson wrote:
> > On Friday 20 July 2007 12:40 pm, you wrote:
> > > Here is the produced qtdirs.mk.
> > 
> > Attached is mine as a comparison.
> > 
> > It would appear Ubuntu have been messing with Qt (as distros tend to do), so I 
> > would report it as a bug with them.
> Same thing here with Debian packages. Looking at the source package
> reveals nothing obvious.
> Looking through the Qt sources there's only 1 place where QT_SHARED is
> set, thats src/qbase.pri and its added to PRL_EXPORT_DEFINES.
> The thing is: I have no idea what that variable is supposed to mean and
> its not obvious what it does.
> So I'm not so sure about the "distro messes with Qt" thingie.

Ok, here's what I found: The reason that -DQT_SHARED is not added is
because Debian removes the link_prl option from qmake.conf. I guess the
reason is that this is not needed on a debian based system most of the

So adding

CONFIG += link_prl

to qtdirs.pro (don't know wether the file is generated or not) solves
the problem.

I've sent a bugreport to debian asking for a fix, leaving link_prl in is
not an option as that causes other unwanted side-effects (like an
application that uses QtSql module to always link against mysql libs). 

Also I checked Debians pyqt package but the configure.py in that version
(4.2) didn't yet check for QT_SHARED as it seems. Which is why it works


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