Re: sim/common/callback.c: autoconf tests for struct stat members, more added.

[Andrew Cagney <cagney@gnu.org>]

Hans-Peter Nilsson wrote:
> I have a need for more of the GNU/Linux struct stat members.  At
> the same time, it looked like adding them would plausibly break
> some non-GNU/Linux hosts, which I guess is the reason there were
> only two st_ino and st_dev present in cb_host_to_target_stat.
> All would have been *much* simpler if sim/common used a modern
> autoconf (with AC_CHECK_MEMBERS), because then I wouldn't have
> to translate that macro into something that works with
> autoconf-2.13. Pain. :-(  Arguably some st_* members possibly
> don't translate very well to a simulated environment, but that's
> up to the user of the simulator to decide.  Regrettably, I did
> not find a way to make the cb_host_to_target_stat more agreeable
> to the eye.  Tested by observing that a few more of my C-based
> simulator tests (developed without the st_* #ifdefs) now pass,
> and testing that configuring a non-present struct stat member
> works.
> 
> Ok to commit?
> 
> sim/common:
> 	* configure.in (SIM_CHECK_MEMBERS): Call for struct stat members
> 	st_dev, st_ino, st_mode, st_nlink, st_uid, st_gid, st_rdev,
> 	st_size, st_blksize, st_blocks, st_atime, st_mtime and st_ctime.
> 	* aclocal.m4 (SIM_CHECK_MEMBER, SIM_CHECK_MEMBERS_1)
> 	(SIM_CHECK_MEMBERS): New macros.
> 	* callback.c (cb_host_to_target_stat): Use temporary macro ST_x
> 	for struct stat member test and write.  Add ST_x calls for each
> 	struct stat member tested in configure.in.  Wrap each ST_x call in
> 	#ifdef of configure macro for that member.
> 	* configure, config.in: Regenerate.

Sure! Thanks.

Andrew