* contrib/hbqt/gtqtc/gtqtc.cpp
! deleted unused static function shown by new mingw version.
* INSTALL
* mingw 4.6.1 is OK for Harbour.
; I didn't test the 64-bit version in 32-bit mode, I hope
someone will, maybe it has the float precision fixed and
it can become recommended version for both x86 and x64
mingw builds.