Hi Erich,
I don't have Cygwin installed.
I created a new project using processor expert and this is the complete trace.
**** Build of configuration MCF51QM128_Internal_Flash for project Test1 ****
C:\Freescale\CW MCU v10.2\gnu\bin\mingw32-make -j8 all
'Building file: ../Sources/Events.c'
'Building file: ../Sources/ProcessorExpert.c'
'Building file: ../Project_Settings/Startup_Code/startcf.c'
'Building file: ../Generated_Code/Cpu.c'
'Building file: ../Generated_Code/DMA1.c'
'Building file: ../Generated_Code/DMAT1.c'
'Building file: ../Generated_Code/PE_LDD.c'
'Building file: ../Generated_Code/Vectors.c'
'Executing target #1 ../Sources/Events.c'
'Executing target #2 ../Sources/ProcessorExpert.c'
'Executing target #3 ../Project_Settings/Startup_Code/startcf.c'
'Executing target #4 ../Generated_Code/Cpu.c'
'Executing target #5 ../Generated_Code/DMA1.c'
'Executing target #6 ../Generated_Code/DMAT1.c'
'Executing target #7 ../Generated_Code/PE_LDD.c'
'Executing target #8 ../Generated_Code/Vectors.c'
mingw32-make: *** Access denied.
. Stop.
mingw32-make: *** Waiting for unfinished jobs....
mingw32-make: *** Access denied.
. Stop.