Add/fix dashdash support in optparse_long

This changes the behaviour of optparse_long so that a '--' tags the end of
options, just like optparse and getopt_long.

diff --git a/src/optparse.c b/src/optparse.c
index f6fb7e777ebd1f3c99133ae8f6895804e5e55fc2..0460cb6669cfd38c29036d9b2e372f2a5bce5042 100644 (file)
--- a/src/optparse.c
+++ b/src/optparse.c
@@ -214,6 +214,9 @@ optparse_long(struct optparse *options,
     char *option = options_argv(options->optind);
     if (option == NULL) {
         return -1;
+    } else if (is_dashdash(option)) {
+        options->optind++; // consume "--"
+        return -1;
     } else if (is_shortopt(option)) {
         return long_fallback(options, longopts, longindex);
     } else if (!is_longopt(option)) {