CC=gcc OPT=-Wall -O2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE all: read_data write_data search_data replace_data read_data: read_data.c $(CC) $(OPT) -o read_data read_data.c strip read_data write_data: write_data.c $(CC) $(OPT) -o write_data write_data.c strip write_data search_data: search_data.c $(CC) $(OPT) -o search_data search_data.c strip search_data replace_data: replace_data.c $(CC) $(OPT) -o replace_data replace_data.c strip replace_data clean: rm -f read_data write_data search_data replace_data core *~ install: @echo why should it be installed somewhere? this is a hacker tool!