[openfabrics-ewg] [PATCH OFED-1.1-rc7] libehca configure: fix missing check of libsysfs

[Hoang-Nam Nguyen]

Hi Vladimir!
> No, the updated configure.in and config.h.in are not in OFED-1.1.
> In any case, I believe that most of the checks you have added to
> configure scripts are provided by OFED installation scripts.
> So, in case OFED installation fails, ehca configure would fail as well.
Created a bugzilla as libehca could not be found by libibverbs,
http://openib.org/bugzilla/show_bug.cgi?id=285.
I guess I was not precise enough in that configure does not
only check libsysfs, but also generates corresponding define
HAVE_SYSFS_LIBSYSFS_H in config.h to enable/export openib_driver_init()
from libehca. So we really need configure.in and config.h.in
to enable libehca for user space. Without them ehca configure still
goes through.
Regards
Nam