https://higepon.hatenablog.com/entry/20110817/1313548943
6. Disabled PLATFORM(QT) - WebKit porting to Mona OS - higepon blog
Aug 17, 2011 - After walking through JavaScriptCore and jsc.cpp, it seems that we should disable PLATFORM(QT) and remove QT related file from Makfile. Let's start again....
disabled platformqtwebkit