When I use the -f I get an error segmentation fault, any ideas? the -f option is for choosing an input file.
struct list_names filenames;
list_names_init(&filenames, "filenames");
optind = 1;
while ((ch = getopt(argc, argv, ":hvf:")) != -1) //where getopt defined
{
switch (ch) {
case 'h':
printf("usage: ./hake [-h] [-v] [-f file]\n-h print help\n-v verbose mode; enable extra printing; can be repeated\n");
printf("-f file input filename; default is hakefile or Hakefile");
break;
case 'v':
verbose = 1;
break;
case 'f':
f_flag++;
list_names_append_from_file(&filenames, optarg);
printf("Read_file%s\n",optarg);
read_file(optarg);
break;
Without knowing how list_names_append_from_file is defined it is hard to answer your question. However, a segmentation fault means that you're almost certainly passing the wrong type or number of parameters to a function or that you're messing up a pointer. I'd suggest recompiling (presuming you're using gcc) with -Wall -Werror and see if the compiler doesn't tell you what's going wrong immediately.