This is timely. I am seeing an identical error. I switched (for the first time) from my Debug configuration to my Release configuration, and this is the message I get.
The .mk file looks OK, unless there is something wrong in the GEN_OPTS or GEN_HDRS macros...
A slightly redacted version of the first lines of my .mk files follows. The line breaks are kind of messed up here, but look like proper Makefile stuff in "real life."
################################################################################
# Automatically-generated file. Do not edit!
################################################################################
# Each subdirectory must supply rules for building sources it contributes
services/fp_alarm.obj: C:/Users/wardw/fp/CCSBand/services/fp_alarm.c $(GEN_OPTS) $(GEN_HDRS)
@echo 'Building file: $<'
@echo 'Invoking: MSP430 Compiler'
"C:/ti/ccsv5/tools/compiler/msp430_4.2.1/bin/cl430" -vmspx --abi=eabi -O2 --include_path="C:/ti/ccsv5/ccs_base/msp430/includ
e" --include_path="C:/ti/ccsv5/tools/compiler/msp430_4.2.1/include" --advice:power=all --define=__MSP430F5528__ --define=
__ARMSTRONG_V7__=1 --define=__BOSCH_SMB380__=1 --define=__FP_ACTIVE_BAND__=1 --diag_warning=225 --display_error_number --diag_wrap=o
ff --silicon_errata=CPU21 --silicon_errata=CPU22 --silicon_errata=CPU23 --silicon_errata=CPU40 --printf_support=minimal --preproc_wi
th_compile --preproc_dependency="services/fp_alarm.pp" --obj_directory="services" $(GEN_OPTS__FLAG) "$<"
@echo 'Finished building: $<'
@echo ' '