[CMake] CMake CVS MinGW generator fails

[William A. Hoffman]

OK, so here is the problem:

http://lists.trolltech.com/qt-interest/2006-01/thread00091-0.html

If make finds sh.exe in your path, it will use it, and then
"MinGW Makefiles" will not work.  If sh.exe is in your PATH, then
you must use "MSYS Makefiles" or "Unix Makefiles".   I suppose I could
put a check in for this, and if sh.exe is found and you try "MinGW Makefiles"
cmake produces and error.

-Bill