From c977e99fb2cb0ac246fc1d27bc187643ac200b56 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 27 May 2011 10:41:57 +0000
Subject: [PATCH] Complain upon attempts to use the sysfs interface on RHEL 5
 or a pre-2.6.26 kernel.

git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.0.0.x@3486 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scst/include/scst.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scst/include/scst.h b/scst/include/scst.h
index 18af43a68..e2e0ec233 100644
--- a/scst/include/scst.h
+++ b/scst/include/scst.h
@@ -33,6 +33,10 @@
 #ifdef CONFIG_SCST_PROC
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#elif defined(RHEL_MAJOR) && RHEL_MAJOR -0 <= 5
+#error The SCST sysfs interface is not supported on RHEL 5. Please run make enable_proc.
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)
+#error The SCST sysfs interface is supported from kernel version 2.6.26 on. Please run make enable_proc.
 #endif
 
 #include <scsi/scsi_cmnd.h>