This is my macro based C debugging system. I really haven't done much to mechanize the amiga environment for installing it. I would suggest that you do the following manually: (1) Make a subdirectory in your C include directory called "local". makedir df1:include/local (2) Copy the user program include file dbug.h to this local include directory. copy dbug.h df1:include/local/dbug.h (3) Compile the runtime support library source dbug.c and place in your library directory as "dbug.lib". Note that libraries are just bunches of object files concatenated together (how simple!). cc -c dbug.c copy dbug.o df1:lib/dbug.lib You can now compile and link the test programs by: cc -o factorial main.c factorial.c -ldbug Note that this assumes that you are using my Unix-like "cc", Lattice C frontend. If not, you will have to fake it with the appropriate dozen command lines to compile each piece and do the final link. Good luck! -Fred