From c5010dffb496a5abd889cf0edb485e736f24c5a7 Mon Sep 17 00:00:00 2001
From: Calvin Rose <calsrose@gmail.com>
Date: Tue, 5 Nov 2019 12:51:15 -0600
Subject: [PATCH] Print error message on bad CLI usage.

This was a small regression when bundling cli-main
into boot.janet.
---
 src/mainclient/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mainclient/main.c b/src/mainclient/main.c
index f7d75d7a..21809873 100644
--- a/src/mainclient/main.c
+++ b/src/mainclient/main.c
@@ -93,6 +93,9 @@ int main(int argc, char **argv) {
     JanetFiber *fiber = janet_fiber(janet_unwrap_function(mainfun), 64, 1, mainargs);
     fiber->env = env;
     status = janet_continue(fiber, janet_wrap_nil(), &out);
+    if (status != JANET_SIGNAL_OK) {
+        janet_stacktrace(fiber, out);
+    }
 
     /* Deinitialize vm */
     janet_deinit();