Building steps for new/old released webkit integration

[ejorge]

Hi there,
can you give me some advise, even better a procedure you usually use, to integrate and build new webkit released (i.e: 601.1.10.1 or last revision from https://trac.webkit.org/browser/trunk) with QtWebkit 5.2.x ?
I need, too, to build some older webkit versions.

Thx in advance.