From 8b4199c97fb63fd32dd06e1de47313e50acc69fd Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 11 Oct 2005 20:05:54 +0000
Subject: [PATCH] POSIX clock_gettime() isn't available on Linux before 2.6,
 and the symbol may  just be flat out missing from glibc, so force use of
 previous gettimeofday()  behaviour for now.

---
 src/timer/linux/SDL_systimer.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/timer/linux/SDL_systimer.c b/src/timer/linux/SDL_systimer.c
index cdca6ced0..e2b0fa7ca 100644
--- a/src/timer/linux/SDL_systimer.c
+++ b/src/timer/linux/SDL_systimer.c
@@ -41,7 +41,13 @@ static char rcsid =
 */
 #if (defined _POSIX_TIMERS && _POSIX_TIMERS > 0)
 #include <time.h>
-#define USE_CLOCK_GETTIME
+/*
+ * clock_gettime() is missing in my system's glibc, and apparently isn't
+ *  available before Linux kernel 2.6...you can uncomment the following
+ *  define to use it, since it may be a better solution than
+ *  gettimeofday() on systems that support the newer syscall.  --ryan.
+ */
+/*#define USE_CLOCK_GETTIME*/
 #endif
 
 #include "SDL_error.h"