The Full log is here: http://pastebin.fr/55415.
The file ft2build.h is on my system: /usr/include/freetype2/ft2build.h. If I copy it to /usr/include, it's found, but then other include files are not found.
In the config.log I found some information that harfbuzz is needed, but it's the same problem: I can't install it because freetype is not found.
Any ideas ? Thank you.