Fix for some environment missing "getopt_long"

saitoha · Sep 25, 2014 · 4644539 · 4644539
1 parent d02f1e3
commit 4644539
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/converters/sixel2png.c b/converters/sixel2png.c
@@ -253,20 +253,29 @@ main(int argc, char *argv[])
     char *output = strdup("-");
     char *input = strdup("-");
     int long_opt;
+#if HAVE_GETOPT_LONG
     int option_index;
+#endif  /* HAVE_GETOPT_LONG */
     int nret = 0;
+    char const *optstring = "i:o:VH";
 
+#if HAVE_GETOPT_LONG
     struct option long_options[] = {
         {"input",        required_argument,  &long_opt, 'i'},
         {"output",       required_argument,  &long_opt, 'o'},
         {"version",      no_argument,        &long_opt, 'H'},
         {"help",         no_argument,        &long_opt, 'V'},
         {0, 0, 0, 0}
     };
+#endif  /* HAVE_GETOPT_LONG */
 
     for (;;) {
-        n = getopt_long(argc, argv, "i:o:VH",
+#if HAVE_GETOPT_LONG
+        n = getopt_long(argc, argv, optstring,
                         long_options, &option_index);
+#else
+        n = getopt(argc, argv, optstring);
+#endif  /* HAVE_GETOPT_LONG */
         if (n == -1) {
             break;
         }