From a865a256007d547694be730571c16f8681e21760 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sun, 18 Sep 2011 02:55:45 -0400
Subject: [PATCH] Use an actual #error instead of a bogus symbol if there's no
 spinlock support.

---
 src/atomic/SDL_spinlock.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/atomic/SDL_spinlock.c b/src/atomic/SDL_spinlock.c
index 093554774..0d6b3fb30 100644
--- a/src/atomic/SDL_spinlock.c
+++ b/src/atomic/SDL_spinlock.c
@@ -81,9 +81,8 @@ SDL_AtomicTryLock(SDL_SpinLock *lock)
     /* pthread instructions */
     return (pthread_spin_trylock(lock) == 0);
 #else	
-    /* Need CPU instructions for spinlock here! */
-    __need_spinlock_implementation__
-	
+#error Please implement for your platform.
+    return SDL_FALSE;
 #endif
 }