X11RDP-RH-Matic.sh: gain root privilege via sudo at first
temporarily generated files should be located tempdir
rename variable name s/DISTDIR/SOURCE_DIR/g
do not run two or more instances of X11RDP-RH-Matic

some comments cleanup
add suffix to the working directory
imprement --nocpuoptimize option
some code style changes, add message after RPMs built