OptionReader (Reads an optionfile including, or command line parameters being, any of these:
MAINFILE=somefile.cpp
EXECUTABLE=somefile
Default: MAINFILE without extension
LINKER=g++ -lm -lxx -lxx -lxx
Default: g++ -lm
LINKER_TAIL=libRPClort.a
Default: nothing...
COMPILER=g++ -O2 -g -I/usr/local/lib/mysql
Default: g++ -O2 -g
MAKESCRIPT=somefile.sh
Default: MAINFILE with .sh-extension
DOTOUTPUT=somefile.dot
Default: nothing...
MAKER_ADD_DEPENDENCY="somefile.xxx"
Default: nothing...
Note: The double quotes (") must be used)