Re: [LTP] [PATCH] mount/mount06.c: fix a compile error

[Wanlong Gao <gaowanlong@cn.fujitsu.com>]

On 07/30/2013 11:31 AM, DAN LI wrote:
> 
> The definitions of MS_PRIVATE and MS_MOVE were only added to glibc headers
> in version 2.12.
> 
> If the version of glibc is older than 2.12, define these two flags.
> 
> Signed-off-by: DAN LI <li.dan@cn.fujitsu.com>
> ---
>  testcases/kernel/syscalls/mount/mount06.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/mount/mount06.c b/testcases/kernel/syscalls/mount/mount06.c
> index acfb22d..ab1a472 100644
> --- a/testcases/kernel/syscalls/mount/mount06.c
> +++ b/testcases/kernel/syscalls/mount/mount06.c
> @@ -31,6 +31,11 @@
>  #include "usctest.h"
>  #include "safe_macros.h"
> 
> +#if !(__GLIBC_PREREQ(2, 12))

Why not do like below?
#ifndef MS_MOVE
#define xxx
#define xxx
#endif

Wanlong Gao

> +#define MS_MOVE	8192
> +#define MS_PRIVATE	(1 << 18)
> +#endif
> +
>  #define MNTPOINT_SRC	"mnt_src"
>  #define MNTPOINT_DES	"mnt_des"
>  #define LINELENGTH	256
> 


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