From 183becd24ec7a62a57601c6038e987d987bc3647 Mon Sep 17 00:00:00 2001
From: Timo Paulssen <timonator@perpetuum-immobile.de>
Date: Thu, 16 Jul 2020 16:34:15 +0200
Subject: [PATCH] ensure _GNU_SOURCE is defined when including pthread

so we can have pthread_setname_np. hopefully.
---
 src/moar.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/moar.h b/src/moar.h
index c93518626a..3b50db8591 100644
--- a/src/moar.h
+++ b/src/moar.h
@@ -13,6 +13,14 @@
 /* platform-specific setjmp override */
 #include <platform/setjmp.h>
 
+/* If we're building for GLIBC, we need to set _GNU_SOURCE so that
+ * pthread will export pthread_setname_np for us.
+ */
+#if (2 < __GLIBC__) ||  ((2 == __GLIBC__) && (12 <= __GLIBC_MINOR__))
+#define _GNU_SOURCE
+#include <pthread.h>
+#endif
+
 /* libuv
  * must precede atomic_ops.h so we get the ordering of Winapi headers right
  */