Re: [Mingw-cross-env-list] Qt link error

[Nikos Chantziaras]

On 03/27/2010 09:59 PM, Mark Brand wrote:
> > > Please issue the following commands within the shell in which you
> > > executed "make qt":
> > >
> > > set
> > > export
> > >
> > > and send the output to us. There might be an environment variable
> > > confusing the Qt build. If that's the case, we can solve the easily.
> > > Mingw-cross-env already contains a blacklist of dangling environment
> > > variables which are automatically unset before any build.
> >
> > http://foss.math.aegean.gr/~realnc/set
> > http://foss.math.aegean.gr/~realnc/export
>
> Thanks. Could you try again after removing these from your environment?
>
> QMAKESPEC=linux-g++
> QTDIR=/usr/qt/3
> QT_PLUGIN_PATH=/home/realnc/.kde4/lib64/kde4/plugins/:/usr/lib64/kde4/plugins/

That helped and Qt built successfully.  I suspect it was just QMAKESPEC 
that was causing the error though.  QTDIR is ignored by Qt4 entirely, 
it's only used by Qt3.  QT_PLUGIN_PATH can't have an effect upon compile 
time, only runtime.

How do I peform a "make clean" that only cleans out Qt so I can rebuild 
with only QMAKESPEC unset to test?

It's a bit strange though that not more people came across this problem. 
 QMAKESPEC is always set on systems that have the Qt development 
environment installed, otherwise qmake can't work correctly.