From 7aee2013a86598a4fd100d57b72941cd899f24f0 Mon Sep 17 00:00:00 2001
From: George Claghorn <george@basecamp.com>
Date: Tue, 7 Jul 2020 01:01:39 -0400
Subject: [PATCH] Native extension: include ruby/debug.h for
 rb_postponed_job_register_one prototype

Avoids relying on the implicit declaration. Fixes compiling with latest Clang from Xcode 12. Closes #81.
---
 ext/rbtrace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/rbtrace.c b/ext/rbtrace.c
index 58125f0..db2e184 100644
--- a/ext/rbtrace.c
+++ b/ext/rbtrace.c
@@ -22,6 +22,7 @@
 
 #include <msgpack.h>
 #include <ruby.h>
+#include <ruby/debug.h>
 
 #ifndef RUBY_VM
 #include <env.h>