NOTE: This page is about KDevelop 5, i.e. version that depends on Qt5 and KF5. For instructions on how to build KDevelop 4 against KDELibs4 and Qt4 head over to KDevelop/HowToCompile_v4.
The way to download, compile, install and run KDevelop depends on how you want to download it and where do you want to install it to. So follow the step by step instructions below.
WARNING: You have to remove all KDevelop packages provided by your distribution. If you don't do that, binary compatibility issues will eventually lead to crashes and undefined behavior. To make sure, you can search for KDevelop libraries with this command:
find /usr/ -type f -name "*kdev*.so*"
If no results are returned, you should be on the safe side.
The recommended way to install KDevelop 5 is using kdesrc-build. You can find more information on how to set it up here: https://community.kde.org/Frameworks/Building
Once done, building KDevelop and all its dependencies is as simple as running
kdesrc-build --include-dependencies kdevelop
Note though that this will also install the KF5 frameworks. The initial compile step will thus take a bit of time, but subsequent updates using the same command above are usually much faster.
TODO: document how to configure kdesrc-build to do a minimal build.
If you need extra functionality, you can get and install additional plugins for KDevelop using kdesrc-build. E.g. to install kdev-php and kdev-python, run
kdesrc-build kdev-php kdev-python
Make sure your environment is setup correctly according to https://community.kde.org/Frameworks/Building#Runtime_setup. Most notably, ensure that you configured QT_PLUGIN_PATH properly, otherwise KDevelop won't work properly as it is heavily plugin based.
Once done, execute KDevelop, either by putting $KF5/bin into your PATH, or by running it directly:
If you find any compile problems with KDevelop please report them on our developer mailing-list. If you find problems while using KDevelop, please report these issues to the bugzilla bug database which is only for bugs (not for compilation issues).
If you find bugs that cause program to crash and you are going to make bug report out of it, please re-compile the program with debug symbols. This is done with the option -DCMAKE_BUILD_TYPE=debug passed to CMake in configuration step. Also be sure to update KDevelop and KDevPlatform to newest version, your bug might be already fixed.
Just rerun the kdesrc-build command above to update KDevelop and its dependencies.
You can also see here the latest changes in the KDevelop projects.
This approach is useful if you just want to compile and use KDevelop5 on your day to day system. This works on a Debian system, and probably on Debian derived distributions such as Ubuntu.