From 25caa318eedf38200cd7660320d95bf4662c6c5b Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Tue, 16 Aug 2011 21:36:16 +0000
Subject: [PATCH] Fix compilation on linux 2.4.x

* configure.ac: Check for BLKGETSIZE64.
* block.c (block_ioctl): Check for HAVE_BLKGETSIZE64.
---
 block.c      | 2 +-
 configure.ac | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 4a3b4289..14453a42 100644
--- a/block.c
+++ b/block.c
@@ -194,7 +194,7 @@ block_ioctl(struct tcb *tcp, long code, long arg)
 			}
 		break;
 
-#ifdef BLKGETSIZE64
+#ifdef HAVE_BLKGETSIZE64
 	/* return an uint64_t */
 	case BLKGETSIZE64:
 		if (exiting(tcp)) {
diff --git a/configure.ac b/configure.ac
index 6b88df87..0a4f8916 100644
--- a/configure.ac
+++ b/configure.ac
@@ -323,6 +323,15 @@ AC_CHECK_DECLS([
 		PTRACE_EVENT_VFORK_DONE,
 		PTRACE_EVENT_EXIT],,, [#include <sys/ptrace.h>])
 
+AC_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
+	[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+#include <stdlib.h>
+#include <linux/fs.h>], [return !BLKGETSIZE64;])],
+			   [ac_cv_have_blkgetsize64=yes], [ac_cv_have_blkgetsize64=no])]
+	if test $ac_cv_have_blkgetsize64 = yes; then
+		AC_DEFINE([HAVE_BLKGETSIZE64], [1], [Define to 1 if you have BLKGETSIZE64.])
+	fi)
+
 AC_PATH_PROG([PERL], [perl])
 
 AC_CONFIG_FILES([Makefile tests/Makefile])