[CMake] Qt find package location

[Michael Jackson]

Just to be clear on that, I know QT_QMAKE_EXECUTABLE is a CMake  
variable but is there a corresponding environment variable for that?

or should be we doing cmake -DQT_QMAKE_EXECUTABLE:PATH=/usr/local/qt/ 
bin/qmake ../


---
Mike Jackson                 www.bluequartz.net



On Mar 11, 2009, at 2:22 PM, David Cole wrote:

> If you set QT_QMAKE_EXECUTABLE to the full path to a qmake, *that*  
> qmake is used above all else to find the right Qt. Regardless of  
> QTDIR or PATH.
>
> Setting QT_QMAKE_EXECUTABLE is *the* official way to tell CMake  
> where the Qt that you want is. All else is a "find-and-guess" game  
> if you have multiple Qt's available.
>
>
> HTH,
> David
>
>
> On Wed, Mar 11, 2009 at 1:46 PM, Michael Jackson <mike.jackson at bluequartz.net 
> > wrote:
> You can always do:
>
> export QTDIR=/home/dhenry/qtsdk-2009.01/qt
> export PATH=$QTDIR/bin:$PATH
>
> to put the desired qmake as the first one found.
>
> _________________________________________________________
> Mike Jackson                  mike.jackson at bluequartz.net
> BlueQuartz Software                    www.bluequartz.net
> Principal Software Engineer                  Dayton, Ohio
>
>
>
>
> On Mar 11, 2009, at 1:34 PM, Doug Henry wrote:
>
> thanks for the responses.  I may have missed a detail somewhere.  I  
> set QTDIR (environment and I tried in cmake file) but it always  
> finds the same version of Qt.  Below is a listing of my attempts.   
> cmake always finds version 4.3.4, which is installed in /tools/ 
> lin64, but my QTDIR variable points to the qmake directory for the  
> newest 4.5.0 version of Qt SDK.  If I change my path so /home/dhenry/ 
> qtsdk-2009.01/qt/bin is first, then cmake will find version 4.5.   
> any thoughts on my usage of QTDIR?
>
> (lin64):~/tmp/build$ echo $QTDIR
> /home/dhenry/qtsdk-2009.01/qt/bin
>
> (lin64):~/tmp/build$ which qmake
> /tools/lin64/bin/qmake
>
> (lin64):~/tmp/build$ ls /home/dhenry/qtsdk-2009.01/qt/bin/qmake
> /home/dhenry/qtsdk-2009.01/qt/bin/qmake
>
>
> On Wed, Mar 11, 2009 at 12:58 PM, Pau Garcia i Quiles <pgquiles at elpauer.org 
> > wrote:
> On Wed, Mar 11, 2009 at 5:48 PM, Boudewijn Rempt <boud at valdyas.org>  
> wrote:
> > On Wed, 11 Mar 2009, Doug Henry wrote:
> >
> >> I have multiple Qt installations and would like to know how I  
> guide the
> >> find_package(Qt4) command to find the correct one.  I assume  
> there is a
> >> variable I can set which defines the search path, which will  
> allow me to
> >> change the path to find a different installed version.  Thanks.
> >
> > Afaik, that uses the location of the first qmake it finds on the  
> path
>
> In addition to that, if you use the CVS version of CMake, you can
> specify a particular version of Qt:
>
> FIND_PACKAGE( Qt4 4.4.3 )
>
> That means "prefer 4.4.3" to any other version. If you add EXACT to
> that, it will only accept Qt 4.4.3:
>
> FIND_PACKAGE( Qt4 4.4.3 EXACT )
>
> You can also use the COMPONENTS syntax instead of SET(
> QT_USE_component) to say what components you want:
>
> FIND_PACKAGE( Qt4 COMPONENTS QtGui QtXml QtNetwork )
>
> --
> Pau Garcia i Quiles
> http://www.elpauer.org
> (Due to my workload, I may need 10 days to answer)
>
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