Upgrade php sur gentoo

Migration 525 à 5.3.6 mini, apache GENTOO OVH
pour install jomsocial

PHP Requirements :
PHP version 5.2.6 and above
"upload_max_filesize" must be 3M or higher

Required PHP Extension
GD library (at least v1.8 with libjpeg)
Curl library
Zip

Optional (but highly recommended) PHP Extensions
ImageMagick (allow
fast image processing)

Required PHP Functions
fsockopen
exec or passthru or shell_exec or system (for video encoding support)