sane make output

$ make
[ 50%] Linking C executable bin/program
3 errors:
  usr/home/omega/code/program/src/main.c: multiple definition of `prg_debug_error'
    usr/home/omega/code/program/src/prgio.c: first defined here <at $LineNumber, else nothing>
  usr/home/omega/code/program/src/main.c: multiple definition of `prg_debug_msg'
    usr/home/omega/code/program/src/prgio.c: first defined here <at $LineNumber, else nothing>
  usr/home/omega/code/program/src/main.c: undefined reference to `prg_init_all'

make: stopped in /usr/home/omega/code/program