From: Jim Schutt <jaschut@sandia.gov>
Date: Fri, 16 Apr 2010 22:25:49 +0000 (-0600)
Subject: autoconf: Fix detection of sync_file_range.
X-Git-Tag: v0.20~45
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=65ec0241ab5e9232fe9d0acde9595c211be5c96d;p=ceph.git

autoconf: Fix detection of sync_file_range.

Without this patch, on CentOS 5.4 ./configure reports that
sync_file_range is missing, but HAVE_SYNC_FILE_RANGE ends
up being defined in src/acconfig.h anyway.

Compile tested on CentOS 5.4 (which does not have sync_file_range(2)
in distro glibc) and Fedora 11 (which does).

Signed-off-by: Jim Schutt <jaschut@sandia.gov>
---

diff --git a/configure.ac b/configure.ac
index 665fcdd6281f..4abcbe128aca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -148,9 +148,8 @@ AC_CHECK_HEADER([openssl/md5.h],
 AC_CHECK_HEADERS([sys/xattr.h arpa/inet.h netdb.h netinet/in.h sys/file.h sys/ioctl.h sys/mount.h sys/param.h sys/socket.h sys/statvfs.h sys/time.h sys/vfs.h syslog.h utime.h])
 
 # sync_file_range
-AC_DEFINE([HAVE_SYNC_FILE_RANGE], [], [sync_file_range(2) is supported])
 AC_CHECK_FUNC([sync_file_range],
-	[AC_DEFINE([HAVE_SYNC_FILE_RANGE])],
+	[AC_DEFINE([HAVE_SYNC_FILE_RANGE], [], [sync_file_range(2) is supported])],
 	[])
 
 # Checks for typedefs, structures, and compiler characteristics.