* contrib/hbqt/hbmk2_plugin_qt.hbs
+ Return errors if required tools are not detected.
(these errors are not yet all handled by hbmk2)
+ Refined tools detection on Windows to not try HB_WITH_QT
if not set at all.
! Fixed tool detection failure err msg to display proper
list of envvars able to control the process.
* contrib/makefile.hbs
+ Employed several different techniques to avoid long
cmdline length to make certain (f.e. MS-DOS) hosts happy.
* utils/hbmk2/hbmk2.prg
+ Added hbmk2_ArrayToList() function.
126a3a7c17