Hi, I started building kde from trunk, but I got stucked on an error while compiling kdelibs.

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-- Building kdelibs...
CMake Error at cmake/modules/FindPackageHandleStandardArgs.cmake:129 (MESSAGE):
  Could NOT find Phonon: Found version "4.3.1", but required is at least
  "4.3.80" (found /usr/include/qt4)
Call Stack (most recent call first):
  cmake/modules/FindPhonon.cmake:36 (find_package_handle_standard_args)
  cmake/modules/FindKDE4Internal.cmake:685 (find_package)
  CMakeLists.txt:39 (find_package)


I installed the latest qt in KDE_SRC/qt-kde, donwloaded phonon in KDE_SRC/phonon and then compiled it, so what's wrong?

You likely need to set a few environment variables, so that your self-built Qt and Phonon are found.

In particular, you need to set the following:
CMAKE_PREFIX_PATH
PATH
LD_LIBRARY_PATH

CMAKE_PREFIX_PATH should be set to where you installed Qt and Phonon.
LD_LIBRARY_PATH to ${CMAKE_PREFIX_PATH}/lib
PATH to ${CMAKE_PREFIX_PATH}/bin:$PATH

You can use "export" to set the environment variables.

Thank you for the answer, I set the environment variables and solved by upgrading from beta PPA, but now during the compilation I reach this error, as you can see there is no explanation of what went wrong

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[ 12%] Building CXX object kdecore/CMakeFiles/kdecore.dir/util/kshareddatacache.o
/home/kde-devel/kde/src/KDE/kdelibs/kdecore/util/kshareddatacache.cpp:73: warning: this decimal constant is unsigned only in ISO C90                                                           
/home/kde-devel/kde/src/KDE/kdelibs/kdecore/network/k3socks.cpp: In constructor ‘KSocks::KSocks(const KConfigGroup*)’:
/home/kde-devel/kde/src/KDE/kdelibs/kdecore/network/k3socks.cpp:305: warning: ‘static KLibLoader* KLibLoader::self()’ is deprecated (declared at /home/kde-devel/kde/src/KDE/kdelibs/kdecore/util/klibloader.h:142)
Linking CXX shared library ../lib/libkdecore.so
[ 12%] Built target kdecore                                                                                                                                                                     
make: *** [all] Errore 2


Ok, I solved, it was my fault (I was launching compilation from another directory), now kdelibs is compiled, and I'm trying to compile kdepimlibs...

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/home/kde-devel/kde/src/KDE/kdepimlibs/akonadi/monitor_p.cpp: In member function ‘void Akonadi::MonitorPrivate::emitCollectionNotification(const Akonadi::NotificationMessage&, const Akonadi::Collection&, const Akonadi::Collection&, const Akonadi::Collection&)’:
/home/kde-devel/kde/src/KDE/kdepimlibs/akonadi/monitor_p.cpp:435: error: ‘Subscribe’ is not a member of ‘Akonadi::NotificationMessage’
/home/kde-devel/kde/src/KDE/kdepimlibs/akonadi/monitor_p.cpp:439: error: ‘Unsubscribe’ is not a member of ‘Akonadi::NotificationMessage’
make[2]: *** [akonadi/CMakeFiles/akonadi-kde.dir/monitor_p.o] Errore 1
make[1]: *** [akonadi/CMakeFiles/akonadi-kde.dir/all] Errore 2
make[1]: *** In attesa di lavori non terminati...
[ 39%] Built target kio_imap4
make: *** [all] Errore 2


Could this be a bug? It seems an error in code, it doesn't complain about unsatisfied dependencies

Have you tried updating the sources you checked out from KDE SVN? It may have been a temporary build breakage.

Yes, I made "svn up", but it's already the latest revision

Do you have any KDE Development packages from your distribution installed? If so, try uninstalling them.

Could you explain me better what do you mean by "KDE Development packages", please? Something like KDevelop, or kdesdk?

Anyone?

I am referring to packages such as kdelibs5-dev

Isn't there any other way? I need those packages in order to learn kde development

When you install kdelibs from trunk, it will provide the headers and other materials provided by kdelibs5-dev

My guess is the installed Akonadi is too old. Compile it from sources. It is available in the kdesupport module.

I already compiled kdesupport because the building tutorial says that is a requirement for other modules (kdelibs & kdepimlibs)
As for uninstalling kdelibs5-dev: I know that if I manage to get building from trunk working I will have headers installed, but if I want to use another user instead of kde-devel, what I need to do? Have I to "make install" kdelibs in /usr/include instead of kde-devel's home?

Please ensure that the following is sourced *before* KDE startup on your trunk user. Adding it to ~/.bashrc, ~/.profile or ~/.xinitrc should be sufficient to do it.
This script assumes you are installing KDE to /opt/trunk-kde/kde/ and Qt to /opt/trunk-kde/qt/

If you are not self compiling Qt, then change QTDIR to "/usr". Simply change the content of KDEDIR to change where KDE is being installed to.

I use this myself, and I haven't had a case yet where libraries or headers were incorrectly found ( although I don't have kdelibs or qt devel packages installed in my main system in any case )

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if [ -z "${KDE_ENV_SET}" ]; then
    export KDEDIR="/opt/trunk-kde/kde"
    export KDEDIRS="${KDEDIR}"

    export QTDIR="/opt/trunk-kde/qt"
    export QT_PLUGIN_PATH="${KDEDIR}/lib/kde4/plugins"

    export PATH="${HOME}/bin:${KDEDIR}/bin:${QTDIR}/bin:${PATH}"
    export LD_LIBRARY_PATH="${KDEDIR}/lib:${QTDIR}/lib"
    export CMAKE_PREFIX_PATH="${KDEDIR}:${QTDIR}"
    export PKG_CONFIG_PATH="${KDEDIR}/lib/pkgconfig:${KDEDIR}/share/pkgconfig:${QTDIR}/lib/pkgconfig"

    export KDEHOME="${HOME}/.kde4/"
    # Allow System Wide apps to be found
    export XDG_DATA_DIRS="/usr/share"

    # Set the XDG data path, helps finding plugins, etc
    export XDG_DATA_DIRS="${KDEDIR}/share:${XDG_DATA_DIRS}"
    export XDG_CONFIG_DIRS="${KDEDIR}/etc/xdg"

    # Don't accidentally get sourced again.
    export KDE_ENV_SET=1
fi