isl_arg_parse: always print help option

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

diff --git a/isl_arg.c b/isl_arg.c
index fa45358..5f1950f 100644 (file)
--- a/isl_arg.c
+++ b/isl_arg.c
@@ -14,6 +14,11 @@
 #include <isl/arg.h>
 #include <isl/ctx.h>
 
+static struct isl_arg help_arg[] = {
+ISL_ARG_PHANTOM_BOOL('h', "help", NULL, "print this help, then exit")
+ISL_ARG_END
+};
+
 static void set_default_choice(struct isl_arg *arg, void *opt)
 {
        *(unsigned *)(((char *)opt) + arg->offset) = arg->u.choice.default_value;
@@ -489,10 +494,10 @@ static void print_help_and_exit(struct isl_arg *arg, const char *prog)
        printf("\n\n");
 
        print_help(arg, NULL);
-       if (any_version(arg)) {
-               printf("\n");
+       printf("\n");
+       if (any_version(arg))
                printf("  -V, --version\n");
-       }
+       print_bool_help(help_arg, NULL);
 
        exit(0);
 }