From b3f31b1adbeb5897ba2cf55614625eea14431921 Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Sun, 9 Oct 2016 22:48:07 +0200
Subject: [PATCH] Fix double declaration of __heap_mutex.

---
 libc/malloc/__heap_unlock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/malloc/__heap_unlock.c b/libc/malloc/__heap_unlock.c
index f091b949..754874dc 100644
--- a/libc/malloc/__heap_unlock.c
+++ b/libc/malloc/__heap_unlock.c
@@ -25,7 +25,7 @@
 #endif
 
 #ifndef __is_sortix_libk
-pthread_mutex_t __heap_mutex;
+extern pthread_mutex_t __heap_mutex;
 #endif
 
 void __heap_unlock(void)