compiling fatal error

I’m trying to compile blender from the source, I encounter a fatal error related to openexr that I cant solve.
I’m on Ubuntu 14.04
I did follow the compile instruction in the wiki and installed the dependencies with the script that comes with blender source, I’m also trying to compile with scons.

I got this output from the terminal:

Compiling ==> 'openexr_api.cpp'
source/blender/imbuf/intern/openexr/openexr_api.cpp:76:18: fatal error: half.h: No such file or directory
 #include <half.h>
                  ^
compilation terminated.
scons: *** [/home/ninao/Dev/blender-git/build/linux/source/blender/imbuf/intern/openexr/openexr_api.o] Error 1
scons: building terminated because of errors.


PS: I’m not a developer but I have “intermediate” knowledge in linux and I had compiled some programs a few times in the past.

If anyone can help me, I’ll be grateful

ok… it was a lib missing… “IlmBase”

by the way, how do I mark this thread as solved?