From f5923f5ceafc627b8b457ead70d8ac296208bf76 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 20 Mar 2012 15:24:50 -0400
Subject: [PATCH] Check for mutex bugs.

---
 src/platform_posix.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/platform_posix.c b/src/platform_posix.c
index f9909045..e82d6536 100644
--- a/src/platform_posix.c
+++ b/src/platform_posix.c
@@ -444,6 +444,8 @@ int __PHYSFS_platformGrabMutex(void *mutex)
 void __PHYSFS_platformReleaseMutex(void *mutex)
 {
     PthreadMutex *m = (PthreadMutex *) mutex;
+    assert(m->owner == pthread_self());  /* catch programming errors. */
+    assert(m->count > 0);  /* catch programming errors. */
     if (m->owner == pthread_self())
     {
         if (--m->count == 0)