From 89423052cab4700291f290819d53f4fbb8dabf95 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Fri, 26 Oct 2012 15:38:21 +0200
Subject: [PATCH] Marginally more robust glibc version test for sync_file_range
 detection.

---
 src/config.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/config.h b/src/config.h
index 57acb6db..5e6d2807 100644
--- a/src/config.h
+++ b/src/config.h
@@ -57,7 +57,7 @@
 #ifdef __linux__
 #include <linux/version.h>
 #include <features.h>
-#ifdef __GLIBC__
+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
 #if (LINUX_VERSION_CODE >= 0x020611 && __GLIBC_PREREQ(2, 6))
 #define HAVE_SYNC_FILE_RANGE 1
 #endif
-- 
2.45.2