Error while bulding 64 bit Qt lib 4.8.0 on Windows: “Perl not found in environment – cannot run syncqt”

Just encountered this error while trying to build the 64bit version of the Qt lib 4.8.0 on Windows:

The configure tools stopped saying : “Perl not found in environment – cannot run syncqt”"

If you do not want to install Perl, easy solution to this is just deleting the syncQt.bat from the $QtDir\bin directory and running configure again.