From e42633cd65a4cae5789ae22cfead83e617bec7cf Mon Sep 17 00:00:00 2001
From: winlin <winlin@vip.126.com>
Date: Wed, 25 Dec 2019 16:04:28 +0800
Subject: [PATCH] For #1537, #1282, when not use builtin setjmp, donot compile
 md.S

---
 trunk/3rdparty/st-srs/md.S | 3 +++
 trunk/3rdparty/st-srs/md.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/trunk/3rdparty/st-srs/md.S b/trunk/3rdparty/st-srs/md.S
index 5d909e28d..7b444a93f 100644
--- a/trunk/3rdparty/st-srs/md.S
+++ b/trunk/3rdparty/st-srs/md.S
@@ -1,3 +1,5 @@
+#if defined(MD_USE_BUILTIN_SETJMP)
+
 /*
  * Portions created by SGI are Copyright (C) 2000 Silicon Graphics, Inc.
  * All Rights Reserved.
@@ -504,3 +506,4 @@
 
 #endif
 
+#endif
diff --git a/trunk/3rdparty/st-srs/md.h b/trunk/3rdparty/st-srs/md.h
index 1716dc08b..115e6fdce 100644
--- a/trunk/3rdparty/st-srs/md.h
+++ b/trunk/3rdparty/st-srs/md.h
@@ -420,6 +420,7 @@
 
         #elif defined(__arm__)
             #define MD_STACK_GROWS_DOWN
+            /* https://github.com/ossrs/state-threads/issues/1#issuecomment-244648573 */
             #define MD_USE_BUILTIN_SETJMP
 
             /* force to use glibc solution, hack the guard jmpbuf from michaeltalyansky */