I was trying to rebuild the EWL libraries for CW 10.1 for MCF51AC256 and ran into errors with make. Reading from the "ColdFire Build Tools Reference Manual for Microcontrollers V10.x " document, page 204, "How to rebuild the EWL libraries" the CWINSTALL environment variable is wrong - it is missing the "MCU" directory at the end. Without it, make will fail. Append /MCU to the end of the CWINSTALL environment variable.
Thanks for reporting! I have passed this to the engineering/docs team, so they should care about this and fix it.
BK