A Windows GNU make build fails with the following error -
"RTbuild/RTcodegen.mk:25: *** multiple target patterns. Stop."
GNU make does not handle the spaces in the directory names given in the
generated makefiles. Gnumake instead reads a directory as two (or more
depending one the amount of spaces) targets separated by spaces.
Resolving the problem
Change the path map to use DOS style directory names
1) File->Edit Path Map...
2) Change the references with spaces to DOS style references
C:\Program Files\Rational\Rose RealTime
For more information about problems with spaces in directory names refer to:
Technote #1134182 - Rose RealTime installed in a path with spaces