Fix, the minimum reported gcc version number was wrong.
Fix, the minimum reported gcc version number was wrong.

* Also removed the attempted upgrading of used compiler with lto mode,
  as gcc-4.6 is not anymore the recent one, and there is little value
  to it now.

tempbottle/Nuitka,wfxiang08/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,kayhayen/Nuitka