Writes messages to cc_erorrs.txt and just reads contents of that for notify script (notify script previous generated error messages from whether expected output files existed or not
The previous behaviour did not work correctly with the Android build, because the .apk was still being generated even when individual parts of the compilation process (e.g. java, 64 bit ARM) failed to compile.
Unfortunately this meant the notify script wrongly assumed no error had occurred when compiling the Android build, as the output .apk file existed