3.5. Install Qt

# for Qt, there is no "make install", just place the source # where you want it to live: cd /usr/local tar -xvzf qt-x11-2.2.4.tar.gz ln -s qt-2.2.4 qt cd qt

Read the INSTALL file about environment variables to setup before you try to build Qt. You can add the following to /etc/profile:

QTDIR=/usr/local/qt PATH=$PATH:$QTDIR/bin MANPATH=$MANPATH:$QTDIR/man LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$QTDIR/lib export QTDIR PATH MANPATH LD_LIBRARY_PATH

LD_LIBRARY_PATH is optional if you include an entry in /etc/ld.so.conf for the library path: /usr/local/qt/lib, then run ldconfig to update /etc/ld.so.cache.

# note: configure has some options you can try, to see them # see ./configure --help ./configure # NOTE: when you run make as suggested on the next line, you may # encounter a make error that halts the build IF you run make # from outside X. The program $QTDIR/bin/uic (the User Interface Compiler) # may Segmentation Fault when run from a Linux console. You can run # "startx" and use the twm (tiny window manager) and xterm (or whatever you # might have setup for X) to run the rest of the Qt build. If for some # reason twm is not even available, then you can run "XFree86 &", use # "CTRL-ALT-F1" to get to a console, start an xterm as # "xterm -display localhost:0.0 &", then switch back to X with "ALT-F7". make # Only for old versions of Qt before 2.1.0 or so ... # compile the opengl extension # Note that in qt 2.2.0 on, the OpenGL support has been moved out of extensions # and is now a standard part of the library that is installed if configure # finds OpenGL installed on your system. If you were to not want OpenGL # support in Qt, you'd have to pass the -no-opengl option to configure. cd extensions/opengl/src # Check the Makefile and ensure there are not Mesa references. make ldconfig cd ../examples # Try compiling and running the examples.