QMAKESPEC has not been set, so configuration cannot be deduced

**javi** · 27th January 2009, 10:04

I know is an old issue, but still unanswered...

Maybe the error is because you didn't load the QMAKESPEC env variable. You can look the ones you can choose on /usr/share/qt4/qmakespec (or qt3, depending)

set env QMAKESPEC linux-g++ (or instead linux-g++, yours)

In the compilation directory:

qmake -project
qmake
make

**yehdev_cc** · 1st February 2009, 04:56

Hi, I've just got a similar question..
Is it normal not to have the folder '/usr/..../mkspecs' when compiling Qt4 from source ? Because I didn't get it after 'make install' ?
I managed to copy it from somewhere else .. but is this normal ?

**jacek** · 1st February 2009, 15:25

Originally Posted by yehdev_cc

Is it normal not to have the folder '/usr/..../mkspecs' when compiling Qt4 from source ?

Did you pass any paths to configure?

**yehdev_cc** · 2nd February 2009, 04:03

Did you pass any paths to configure?

No I didn't ...

**jacek** · 4th February 2009, 02:00

Originally Posted by yehdev_cc

No I didn't ...

Then Qt should install itself in /usr/local/Trolltech/Qt-<version>. What does "qmake -query QMAKE_MKSPECS" print?

**yehdev_cc** · 5th February 2009, 21:14

I just copied this directory from elsewhere... so, the output now may not give a very useful information about the problem .. I think.
I just don't know why this happened.. it should have created the folder, as make completed successfully without errors...

**creatron** · 6th November 2012, 18:48

Just add this to the script before you run qmake.
Unix Bourne shell:

QMAKESPEC=/usr/local/qt/mkspecs/linux-g++
PATH=$PATH:/local/qmake/bin
export QMAKESPEC PATH

Unix C shell:

setenv QMAKESPEC /usr/local/qt/mkspecs/linux-g++
setenv PATH $PATH:/local/qmake/bin

Microsoft Windows:

set QMAKESPEC=c:\qt\mkspecs\win32-msvc
set PATH=%PATH%;c:\qmake\bin

qmake is now installed.