[LTP] [PATCH 1/2] statmount.h: add check for STATMOUNT_MNT_NS_ID

[Cyril Hrubis]

Hi!
> > +/* Enable mnt_ns_id check when system struct statmount is not defined. */
> > +#if !defined(HAVE_STRUCT_STATMOUNT) && !defined(LTP_HAVE_STATMOUNT_MNT_NS_ID)
> > +#define LTP_HAVE_STATMOUNT_MNT_NS_ID 1
> > +#endif

On a second look this looks like you are working around the
fallback definition we have. But there is no configure check for
STATMOUNT_MNT_NS_ID that has to be added to configure.ac, we need
something as:

AC_CHECK_MEMBERS([struct statmount.mnt_ns_id],,,[#include <unistd.h>])

That would define HAVE_STRUCT_STATMOUNT_MNT_NS_ID if that field is
present in the system headers.

And then we can use that with:

#if !defined(HAVE_STRUCT_STATMOUNT) || defined(HAVE_STRUCT_STATMOUNT_MNT_NS_ID)
# define LTP_HAVE_STRUCT_STATMOUNT_MNT_NS_ID 1
#endif

-- 
Cyril Hrubis
chrubis@suse.cz