[PATCH] build: check linux/fs.h for compression flags

[David Disseldorp]

Needed for old distributions (e.g. SLES8), which provide a linux/fs.h
without the FS_IOC_GETFLAGS/FS_COMPR_FL defines needed for the btrfs VFS
module.

Reported-by: Andrew Bartlett <abartlet at samba.org>
Signed-off-by: David Disseldorp <ddiss at samba.org>
---
 source3/wscript | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source3/wscript b/source3/wscript
index 2edf5e8..b09c2db 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -1727,7 +1727,8 @@ main() {
     if conf.CHECK_HEADERS('gpfs_gpl.h'):
         conf.DEFINE('HAVE_GPFS', '1')
 
-    if conf.CHECK_HEADERS('linux/ioctl.h sys/ioctl.h linux/fs.h'):
+    if (conf.CHECK_HEADERS('linux/ioctl.h sys/ioctl.h linux/fs.h') and
+	conf.CHECK_DECLS('FS_IOC_GETFLAGS FS_COMPR_FL', headers='linux/fs.h')):
 	    conf.DEFINE('HAVE_LINUX_IOCTL', '1')
 
     conf.env['CCFLAGS_CEPHFS'] = "-D_FILE_OFFSET_BITS=64"
-- 
1.8.1.4