[Solved] Installing Qt stable from source in Linux with another version on the system

swivelhead

I want to try out building and using a build from source without deleting the current version of Qt/qmake that I installed via apt/Synaptic.

I have built it and ran make/make install and it is located in /usr/local/Trolltech/Qt-4.8.5/...

Now, if I type:
$ qmake --version

I get the old version, not the new one.

I have added the /usr/local/Trolltech/Qt-4.8.5/bin/ folder to the path.

I have a couple of questions:

How do I differentiate between the two versions of qmake? Via the -spec flag?
How do I keep from really screwing up my KDE apps while testing out a version of Qt that's newer than what they were built with?

Thanks!

swivelhead

I added a bash script to the /usr/local/bin, which is also in my $PATH environment variable.

Here's the script:

@
$ vim /usr/local/bin/qmake-qt485
#!/bin/bash
export QMAKEROOT=/usr/local/Trolltech/Qt-4.8.5
QMAKEROOT/bin/qmake $@@

To use it from wherever I have a Qt .pro file configured (and my source code):

@
$ qmake-qt485
$ make
@

This might not be the best or intended way, but it was the simplest.