Kdevelop don't load kdevplatform

[Gioacchino]

Here you found some more details

https://bugs.launchpad.net/ubuntu/+source/kdevelop-kde4/+bug/326342/comments/3

gioacchino at HackLab:~$ whereis kdevelop
kdevelop: /usr/local/bin/kdevelop
gioacchino at HackLab:~$ echo $KDEDIRS
/usr/lib/kde4:/usr/local/lib/kde4:/usr/share/kde4:/usr/local/share/kde4:/usr/local/share/applications/kde4:/usr/local/share/doc/kde4:/usr/local/share/emoticons/kde4:

looking for kdevplatform I found only
/usr/local/include/kdevplatform  that contains only .h file
/usr/local/lib/kdevplatform that contains only .cmake file

I should add also these folder to $KDEDIRS ? (I have already tried but not 
work also rerunning kbuildsyoca4)