[CMake] JOM Makefile generation issue

[Laszlo Papp]

I think it is my stupidity again as usual. :D

$myrepository/tools/bin/cl.exe caused it because that was found due to
a wrong PATH handling. I have inserted that before the rest instead of
appending. The local cl.exe was preferred from the repository and
cmake seems to have been unhappy about that (not sure why) in the the
visual studio prompt.

Thank you for your help and patience. Also, sorry for the bothering!

Laszlo