diff options
Diffstat (limited to 'src/preproc/soelim/soelim.cc')
| -rw-r--r-- | src/preproc/soelim/soelim.cc | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/preproc/soelim/soelim.cc b/src/preproc/soelim/soelim.cc index 7fa05af3..e05f2406 100644 --- a/src/preproc/soelim/soelim.cc +++ b/src/preproc/soelim/soelim.cc @@ -1,5 +1,5 @@ // -*- C++ -*- -/* Copyright (C) 1989, 1990, 1991, 1992, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1989-1992, 2000, 2001 Free Software Foundation, Inc. Written by James Clark (jjc@jclark.com) This file is part of groff. @@ -58,10 +58,9 @@ include_path_append(char *path) } -void usage() +void usage(FILE *stream) { - fprintf(stderr, "usage: %s [ -vC ] [ -I file ] [ files ]\n", program_name); - exit(1); + fprintf(stream, "usage: %s [ -vC ] [ -I file ] [ files ]\n", program_name); } int main(int argc, char **argv) @@ -69,7 +68,12 @@ int main(int argc, char **argv) program_name = argv[0]; include_path_append("."); int opt; - while ((opt = getopt(argc, argv, "CI:v")) != EOF) + static const struct option long_options[] = { + { "help", no_argument, 0, CHAR_MAX + 1 }, + { "version", no_argument, 0, 'v' }, + { NULL, 0, 0, 0 } + }; + while ((opt = getopt_long(argc, argv, "CI:v", long_options, NULL)) != EOF) switch (opt) { case 'v': { @@ -84,8 +88,13 @@ int main(int argc, char **argv) case 'I': include_path_append(optarg); break; + case CHAR_MAX + 1: // --help + usage(stdout); + exit(0); + break; case '?': - usage(); + usage(stderr); + exit(1); break; default: assert(0); |