The provided DMakefile should do most of the work, so just type ``dmake'' to compile both programs or ``dmake Reminder'' or ``dmake ReminderCheck'' to compile only one.
The source files have some parts between ``#ifdef _DCC'' and ``#endif''. These parts are not needed when compiled with SAS-C, so if your change applies to DICE only, use the same method to keep the source consistent.
Similarly the parts between ``#ifdef __SASC'' and ``#endif'' are not used when compiled with DICE, so make sure you don't write anything DICE needs into these parts.
Notice also that the files RemSASc.c, RemSAS.c and RemSAS.h are not used under DICE. They are GadToolsBox generated source files (and an additional prototype file) for SAS-C only.