[svn-r546] Changes since 19980724

----------------------

./MANIFEST
./doc/html/H5.format.html
./src/H5O.c
./src/H5Oprivate.h
./src/H5Omtime.c	[NEW]
./src/H5private.h
./src/Makefile.in
	Added the modification time message.  If an object header has
	this message then it's value is updated with the current time
	whenever anything changes in the object header.

./acconfig.h
./configure.in
	Alas, there seems to be no standard way to convert a string
	time like 19980727122800 in UTC to a time_t since mktime()
	only converts local times to time_t.  So I've modified the
	configuration to check for various ways of getting the time
	zone information:

	   * Added checks for the `tm_gmtoff' field of `struct tm'.
	   * Added a check for the `timezone' global variable.
	   * Added a check for `struct timezone'.
	   * Added a check for BSDgettimeofday().
	   * Added a check for gettimeofday() although it doesn't
	     actually set the timezone argument on some systems.
	   * Added a check to see if `tm_zone' is a member of `struct tm'.
	   * Added a check to see if `tzname' is a global variable.
	   * Added a check to see if `struct tm' is defined in time.h
	     or sys/time.h.

	It's not difficult to get the right UTC modification message
	into the object header, but some systems might have problems
	getting the right time back out (Irix64 is one) and those
	systems will report zero for the H5G_stat_t.mtime from an
	H5Gstat() call as if the mtime message isn't even present.  It
	will, however, continue to be updated as normal.

./src/H5G.c
./src/H5Gpublic.h
	The H5G_stat_t struct now contains an `mtime' field which will
	hold the object modification time.  If the object has no
	object modification time then the `mtime' will be initialized
	to zero.

	Fixed a bug in H5G_stat() that caused the `objno' field of the
	H5G_stat_t to be set incorrectly on some machines.

./src/H5D.c
	Writing to external datasets fail if the hdf5 file is not open
	for writing.

	A modification time message is added to the dataset object
	header when it's created and H5O_touch() is called from
	H5D_write() to update that message.

./src/H5T.c
	Fixed a bug in H5Tget_member_dims() that caused a segmentation
	fault if one of the output array arguments was the null
	pointer.

	Relaxed the member dimension checking in H5Tinsert_array() so
	it can also be used for scalar members.

./test/Makefile.in
	Added additional file names to the `mostlyclean' target.

./tools/h5dump.c
./tools/h5tools.h
	Increased the temporary buffer size to 1MB.

	Added support for printing compound data types with array
	members.

	When printing H5T_NATIVE_CHAR and H5T_NATIVE_UCHAR we escape
	double quote characters.

./tools/h5ls.c
	Changed the output format a little because we were starting to
	get too much info to fit on a line.  Without `--verbose' each
	object occupies one line of output.  Otherwise, additional
	information is printed below the object name: object file
	address, comment, and modification time.  If `--dump' is given
	then the data is printed after the other information.

./test/cmpd_dset.c
	Changed the way the dataset is initialized to be more uniform.

11 files changed, 936 insertions, 438 deletions

diff --git a/src/.distdep b/src/.distdep
index 3e0c443..c8e7e52 100644
--- a/src/.distdep
+++ b/src/.distdep
@@ -1,64 +1,3 @@
-H5.o: \
-   H5.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Ipublic.h \
-   H5Dpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Iprivate.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
-   H5Pprivate.h \
-   H5Ppublic.h \
-   H5Zpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h
-H5A.o: \
-   H5A.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5Dprivate.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
-   H5Pprivate.h
 H5AC.o: \
    H5AC.c \
    H5private.h \
@@ -84,101 +23,6 @@ H5B.o: \
    H5Bpublic.h \
    H5Eprivate.h \
    H5Epublic.h
-H5D.o: \
-   H5D.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5Dprivate.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5HLprivate.h \
-   H5HLpublic.h \
-   H5MFprivate.h \
-   H5MFpublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h
-H5E.o: \
-   H5E.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5MMprivate.h
-H5F.o: \
-   H5F.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
-   H5Pprivate.h \
-   H5Ppublic.h \
-   H5Zpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h
-H5Farray.o: \
-   H5Farray.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Dprivate.h \
-   H5Dpublic.h \
-   H5Ipublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h
 H5Fcore.o: \
    H5Fcore.c \
    H5private.h \
@@ -199,49 +43,6 @@ H5Ffamily.o: \
    H5Ipublic.h \
    H5Fprivate.h \
    H5Fpublic.h
-H5Fistore.o: \
-   H5Fistore.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Dprivate.h \
-   H5Dpublic.h \
-   H5Ipublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5MFprivate.h \
-   H5MFpublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h
-H5Flow.o: \
-   H5Flow.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Ipublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h
 H5Fmpio.o: \
    H5Fmpio.c \
    H5private.h \
@@ -283,16 +84,6 @@ H5Fsec2.o: \
    H5Dpublic.h \
    H5MMprivate.h \
    H5MMpublic.h
-H5Fsplit.o: \
-   H5Fsplit.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Ipublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h
 H5Fstdio.o: \
    H5Fstdio.c \
    H5private.h \
@@ -306,56 +97,6 @@ H5Fstdio.o: \
    H5Dpublic.h \
    H5MMprivate.h \
    H5MMpublic.h
-H5G.o: \
-   H5G.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Ipublic.h \
-   H5Dpublic.h \
-   H5Dprivate.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Gpkg.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5HLprivate.h
-H5Gent.o: \
-   H5Gent.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Ipublic.h \
-   H5Gpkg.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5HLprivate.h \
-   H5HLpublic.h
 H5Gnode.o: \
    H5Gnode.c \
    H5private.h \
@@ -416,21 +157,6 @@ H5Gstab.o: \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5HG.o: \
-   H5HG.c \
-   H5private.h \
-   H5public.h \
-   H5config.h \
-   H5ACprivate.h \
-   H5ACpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Ipublic.h \
-   H5Dpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5HGprivate.h \
-   H5HGpublic.h
 H5HL.o: \
    H5HL.c \
    H5private.h \
@@ -501,33 +227,33 @@ H5O.o: \
    H5Sprivate.h \
    H5Spublic.h \
    H5Zprivate.h
-H5Oattr.o: \
-   H5Oattr.c \
+H5Ocomp.o: \
+   H5Ocomp.c \
    H5private.h \
    H5public.h \
    H5config.h \
    H5Eprivate.h \
    H5Epublic.h \
    H5Ipublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5Ocomp.o: \
-   H5Ocomp.c \
+H5Ocont.o: \
+   H5Ocont.c \
    H5private.h \
    H5public.h \
    H5config.h \
@@ -551,8 +277,8 @@ H5Ocomp.o: \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5Ocont.o: \
-   H5Ocont.c \
+H5Oname.o: \
+   H5Oname.c \
    H5private.h \
    H5public.h \
    H5config.h \
@@ -576,8 +302,28 @@ H5Ocont.o: \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5Odtype.o: \
-   H5Odtype.c \
+H5Onull.o: \
+   H5Onull.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Ipublic.h \
+   H5Dpublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Sprivate.h
+H5Ostab.o: \
+   H5Ostab.c \
    H5private.h \
    H5public.h \
    H5config.h \
@@ -601,33 +347,129 @@ H5Odtype.o: \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5Oefl.o: \
-   H5Oefl.c \
+H5Tbit.o: \
+   H5Tbit.c \
    H5private.h \
    H5public.h \
    H5config.h \
    H5Eprivate.h \
    H5Epublic.h \
    H5Ipublic.h \
-   H5HLprivate.h \
-   H5HLpublic.h \
+   H5Iprivate.h \
+   H5Tpkg.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h
+H5Tconv.o: \
+   H5Tconv.c \
+   H5Iprivate.h \
+   H5Ipublic.h \
+   H5public.h \
+   H5config.h \
+   H5private.h \
+   H5Eprivate.h \
+   H5Epublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
+   H5Tpkg.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h
+H5Flow.o: \
+   H5Flow.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h
+H5Fsplit.o: \
+   H5Fsplit.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h
+H5Gent.o: \
+   H5Gent.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5Gpkg.h \
+   H5ACprivate.h \
+   H5ACpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
+   H5HLprivate.h \
+   H5HLpublic.h
+H5HG.o: \
+   H5HG.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5ACprivate.h \
+   H5ACpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Ipublic.h \
+   H5Dpublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h
+H5Tinit.o: \
+   H5Tinit.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Iprivate.h \
+   H5Ipublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Tpkg.h \
    H5HGprivate.h \
    H5HGpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
    H5Tprivate.h \
-   H5Tpublic.h
-H5Olayout.o: \
-   H5Olayout.c \
+   H5Tpublic.h \
+   H5Gprivate.h
+H5Farray.o: \
+   H5Farray.c \
    H5private.h \
    H5public.h \
    H5config.h \
@@ -651,21 +493,48 @@ H5Olayout.o: \
    H5Zprivate.h \
    H5Zpublic.h \
    H5Eprivate.h
-H5Oname.o: \
-   H5Oname.c \
+H5Odtype.o: \
+   H5Odtype.c \
    H5private.h \
    H5public.h \
    H5config.h \
    H5Eprivate.h \
    H5Epublic.h \
    H5Ipublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h
+H5Oefl.o: \
+   H5Oefl.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5HLprivate.h \
+   H5HLpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
@@ -673,29 +542,32 @@ H5Oname.o: \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
-   H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h
-H5Onull.o: \
-   H5Onull.c \
+   H5Tpublic.h
+H5Olayout.o: \
+   H5Olayout.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Oprivate.h \
-   H5Opublic.h \
+   H5Dprivate.h \
+   H5Dpublic.h \
+   H5Ipublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
-   H5Ipublic.h \
-   H5Dpublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
    H5Tpublic.h \
-   H5Sprivate.h
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h \
+   H5Eprivate.h
 H5Osdspace.o: \
    H5Osdspace.c \
    H5private.h \
@@ -746,23 +618,30 @@ H5Oshared.o: \
    H5Tpublic.h \
    H5Sprivate.h \
    H5Spublic.h
-H5Ostab.o: \
-   H5Ostab.c \
+H5E.o: \
+   H5E.c \
    H5private.h \
    H5public.h \
    H5config.h \
+   H5Iprivate.h \
+   H5Ipublic.h \
    H5Eprivate.h \
    H5Epublic.h \
+   H5MMprivate.h
+H5Fistore.o: \
+   H5Fistore.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Dprivate.h \
+   H5Dpublic.h \
    H5Ipublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
    H5HGprivate.h \
@@ -770,22 +649,32 @@ H5Ostab.o: \
    H5Tprivate.h \
    H5Tpublic.h \
    H5Sprivate.h \
-   H5Spublic.h
-H5P.o: \
-   H5P.c \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5MFprivate.h \
+   H5MFpublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h
+H5Oattr.o: \
+   H5Oattr.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Iprivate.h \
+   H5Eprivate.h \
+   H5Epublic.h \
    H5Ipublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
-   H5Dprivate.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
    H5HGprivate.h \
@@ -793,23 +682,15 @@ H5P.o: \
    H5Tprivate.h \
    H5Tpublic.h \
    H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
-   H5Pprivate.h
-H5S.o: \
-   H5S.c \
+   H5Spublic.h
+H5Z.o: \
+   H5Z.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
    H5Eprivate.h \
    H5Epublic.h \
+   H5Ipublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
    H5Oprivate.h \
@@ -825,7 +706,10 @@ H5S.o: \
    H5HGpublic.h \
    H5Tprivate.h \
    H5Tpublic.h \
-   H5Sprivate.h
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h
 H5Sall.o: \
    H5Sall.c \
    H5private.h \
@@ -851,8 +735,8 @@ H5Sall.o: \
    H5Tpublic.h \
    H5Zprivate.h \
    H5Zpublic.h
-H5Shyper.o: \
-   H5Shyper.c \
+H5Ssimp.o: \
+   H5Ssimp.c \
    H5private.h \
    H5public.h \
    H5config.h \
@@ -876,70 +760,126 @@ H5Shyper.o: \
    H5Tpublic.h \
    H5Zprivate.h \
    H5Zpublic.h
-H5Spoint.o: \
-   H5Spoint.c \
+H5T.o: \
+   H5T.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
+   H5Dprivate.h \
+   H5Dpublic.h \
    H5Ipublic.h \
-   H5MMprivate.h \
-   H5MMpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
-   H5Fprivate.h \
-   H5Fpublic.h \
-   H5Dpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
-   H5Tpublic.h
-H5Ssimp.o: \
-   H5Ssimp.c \
+   H5Tpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h \
+   H5Iprivate.h
+H5V.o: \
+   H5V.c \
    H5private.h \
    H5public.h \
    H5config.h \
    H5Eprivate.h \
    H5Epublic.h \
    H5Ipublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h
+H5.o: \
+   H5.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5ACprivate.h \
+   H5ACpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
+   H5Ipublic.h \
    H5Dpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Iprivate.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Pprivate.h \
+   H5Ppublic.h \
+   H5Zpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
-   H5Tpublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h
-H5T.o: \
-   H5T.c \
+   H5Tpublic.h
+H5F.o: \
+   H5F.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Dprivate.h \
-   H5Dpublic.h \
+   H5Iprivate.h \
    H5Ipublic.h \
+   H5ACprivate.h \
+   H5ACpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
+   H5Dpublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
    H5Gprivate.h \
    H5Gpublic.h \
    H5Bprivate.h \
    H5Bpublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Pprivate.h \
+   H5Ppublic.h \
+   H5Zpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h
+H5G.o: \
+   H5G.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Ipublic.h \
+   H5Dpublic.h \
+   H5Dprivate.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
    H5Oprivate.h \
    H5Opublic.h \
    H5HGprivate.h \
@@ -950,70 +890,92 @@ H5T.o: \
    H5Spublic.h \
    H5Zprivate.h \
    H5Zpublic.h \
-   H5Iprivate.h
-H5Tbit.o: \
-   H5Tbit.c \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Gpkg.h \
+   H5ACprivate.h \
+   H5ACpublic.h \
+   H5HLprivate.h
+H5P.o: \
+   H5P.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
-   H5Ipublic.h \
    H5Iprivate.h \
-   H5Tpkg.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
+   H5Ipublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
-   H5Tprivate.h \
-   H5Tpublic.h \
+   H5Dprivate.h \
    H5Gprivate.h \
    H5Gpublic.h \
-   H5Bprivate.h
-H5Tconv.o: \
-   H5Tconv.c \
-   H5Iprivate.h \
-   H5Ipublic.h \
-   H5public.h \
-   H5config.h \
-   H5private.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Zprivate.h \
+   H5Zpublic.h \
    H5Eprivate.h \
    H5Epublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
-   H5Tpkg.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
+   H5Pprivate.h
+H5Shyper.o: \
+   H5Shyper.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
    H5Tprivate.h \
    H5Tpublic.h \
-   H5Gprivate.h \
-   H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h
-H5Tinit.o: \
-   H5Tinit.c \
+   H5Zprivate.h \
+   H5Zpublic.h
+H5Spoint.o: \
+   H5Spoint.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Iprivate.h \
-   H5Ipublic.h \
    H5Eprivate.h \
    H5Epublic.h \
+   H5Ipublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
-   H5Tpkg.h \
-   H5HGprivate.h \
-   H5HGpublic.h \
+   H5Sprivate.h \
+   H5Spublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
    H5Tprivate.h \
-   H5Tpublic.h \
-   H5Gprivate.h
+   H5Tpublic.h
 H5TB.o: \
    H5TB.c \
    H5private.h \
@@ -1024,23 +986,23 @@ H5TB.o: \
    H5Eprivate.h \
    H5Epublic.h \
    H5MMprivate.h
-H5V.o: \
-   H5V.c \
+H5A.o: \
+   H5A.c \
    H5private.h \
    H5public.h \
    H5config.h \
-   H5Eprivate.h \
-   H5Epublic.h \
+   H5Iprivate.h \
    H5Ipublic.h \
-   H5Oprivate.h \
-   H5Opublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
    H5Fprivate.h \
    H5Fpublic.h \
    H5Dpublic.h \
+   H5Dprivate.h \
    H5Gprivate.h \
    H5Gpublic.h \
-   H5Bprivate.h \
-   H5Bpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h \
@@ -1048,15 +1010,21 @@ H5V.o: \
    H5Sprivate.h \
    H5Spublic.h \
    H5Zprivate.h \
-   H5Zpublic.h
-H5Z.o: \
-   H5Z.c \
+   H5Zpublic.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Pprivate.h
+H5S.o: \
+   H5S.c \
    H5private.h \
    H5public.h \
    H5config.h \
+   H5Iprivate.h \
+   H5Ipublic.h \
    H5Eprivate.h \
    H5Epublic.h \
-   H5Ipublic.h \
    H5MMprivate.h \
    H5MMpublic.h \
    H5Oprivate.h \
@@ -1072,10 +1040,7 @@ H5Z.o: \
    H5HGpublic.h \
    H5Tprivate.h \
    H5Tpublic.h \
-   H5Sprivate.h \
-   H5Spublic.h \
-   H5Zprivate.h \
-   H5Zpublic.h
+   H5Sprivate.h
 H5Sselect.o: \
    H5Sselect.c \
    H5private.h \
@@ -1101,3 +1066,26 @@ H5Sselect.o: \
    H5HGprivate.h \
    H5HGpublic.h \
    H5Tprivate.h
+H5Omtime.o: \
+   H5Omtime.c \
+   H5private.h \
+   H5public.h \
+   H5config.h \
+   H5Eprivate.h \
+   H5Epublic.h \
+   H5Ipublic.h \
+   H5MMprivate.h \
+   H5MMpublic.h \
+   H5Oprivate.h \
+   H5Opublic.h \
+   H5Fprivate.h \
+   H5Fpublic.h \
+   H5Dpublic.h \
+   H5Gprivate.h \
+   H5Gpublic.h \
+   H5Bprivate.h \
+   H5Bpublic.h \
+   H5HGprivate.h \
+   H5HGpublic.h \
+   H5Tprivate.h \
+   H5Tpublic.h
diff --git a/src/H5D.c b/src/H5D.c
index a6621af..1a88560 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -753,7 +753,8 @@ H5Dextend (hid_t dset_id, const hsize_t *size)
  * Errors:
  *		DATASET	  CANTINIT	Can't update dataset header. 
  *		DATASET	  CANTINIT	Problem with the dataset name. 
- *		DATASET	  CANTINIT	Fail in file space allocation for chunks");
+ *		DATASET	  CANTINIT	Fail in file space allocation for
+ *					chunks
  *
  * Programmer:	Robb Matzke
  *		Thursday, December  4, 1997
@@ -762,6 +763,9 @@ H5Dextend (hid_t dset_id, const hsize_t *size)
  *	Robb Matzke, 9 Jun 1998
  *	The data space message is no longer cached in the dataset struct.
  *
+ * 	Robb Matzke, 27 Jul 1998
+ *	Added the MTIME message to the dataset object header.
+ *
  *-------------------------------------------------------------------------
  */
 H5D_t *
@@ -896,6 +900,14 @@ H5D_create(H5G_t *loc, const char *name, const H5T_t *type, const H5S_t *space,
 	HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, NULL,
 		     "unable to update compression header message");
     }
+
+    /*
+     * Add a modification time message.
+     */
+    if (H5O_touch(&(new_dset->ent), TRUE)<0) {
+	HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL,
+		    "unable to update modification time message");
+    }
     
     /*
      * Initialize storage.  We assume that external storage is already
@@ -1597,6 +1609,11 @@ H5D_write(H5D_t *dataset, const H5T_t *mem_type, const H5S_t *mem_space,
     HDmemset(&bkg_iter,0,sizeof(H5S_sel_iter_t));
     HDmemset(&file_iter,0,sizeof(H5S_sel_iter_t));
 
+    if (0==(dataset->ent.file->intent & H5F_ACC_RDWR)) {
+	HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL,
+		    "no write intent on file");
+    }
+
     if (!file_space) {
 	if (NULL==(free_this_space=H5S_read (&(dataset->ent)))) {
 	    HGOTO_ERROR (H5E_DATASET, H5E_CANTINIT, FAIL,
@@ -1849,6 +1866,14 @@ H5D_write(H5D_t *dataset, const H5T_t *mem_type, const H5S_t *mem_space,
         }
     }
 
+    /*
+     * Update modification time.  We have to do this explicitly because
+     * writing to a dataset doesn't necessarily change the object header.
+     */
+    if (H5O_touch(&(dataset->ent), FALSE)<0) {
+	HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL,
+		    "unable to update modification time");
+    }
 
  succeed:
     ret_value = SUCCEED;
diff --git a/src/H5G.c b/src/H5G.c
index c875814..75ce590 100644
--- a/src/H5G.c
+++ b/src/H5G.c
@@ -1982,10 +1982,16 @@ H5G_stat (H5G_t *loc, const char *name, hbool_t follow_link,
     if (statbuf) {
 	if (H5G_CACHED_SLINK!=obj_ent.type) {
 	    statbuf->objno[0] = (unsigned long)(obj_ent.header.offset);
-	    statbuf->objno[1] = (unsigned long)(obj_ent.header.offset >>
-						8*sizeof(long));
+	    if (sizeof(obj_ent.header.offset)>sizeof(long)) {
+		statbuf->objno[1] = (unsigned long)(obj_ent.header.offset >>
+						    8*sizeof(long));
+	    }
 	    statbuf->nlink = H5O_link (&obj_ent, 0);
 	    statbuf->type = H5G_LINK;
+	    if (NULL==H5O_read(&obj_ent, H5O_MTIME, 0, &(statbuf->mtime))) {
+		H5E_clear();
+		statbuf->mtime = 0;
+	    }
 	} else {
 	    if (NULL==H5O_read (&grp_ent, H5O_STAB, 0, &stab_mesg) ||
 		NULL==(s=H5HL_peek (grp_ent.file, &(stab_mesg.heap_addr), 
diff --git a/src/H5Gpublic.h b/src/H5Gpublic.h
index 217ad7e..f4de521 100644
--- a/src/H5Gpublic.h
+++ b/src/H5Gpublic.h
@@ -42,11 +42,12 @@ typedef enum H5G_link_t {
 
 /* Information about an object */
 typedef struct H5G_stat_t {
-    unsigned long fileno[2];
-    unsigned long objno[2];
-    unsigned nlink;
-    int type;
-    size_t linklen;
+    unsigned long 	fileno[2];	/*file number			*/
+    unsigned long 	objno[2];	/*object number			*/
+    unsigned 		nlink;		/*number of hard links to object*/
+    int 		type;		/*basic object type		*/
+    time_t		mtime;		/*modification time		*/
+    size_t		linklen;	/*symbolic link value length	*/
 } H5G_stat_t;
     
 
diff --git a/src/H5O.c b/src/H5O.c
index dde5917..c3bb495 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -35,6 +35,7 @@ static intn H5O_alloc(H5F_t *f, H5O_t *oh, const H5O_class_t *type,
 		      size_t size);
 static intn H5O_alloc_extend_chunk(H5O_t *oh, intn chunkno, size_t size);
 static intn H5O_alloc_new_chunk(H5F_t *f, H5O_t *oh, size_t size);
+static herr_t H5O_touch_oh(H5F_t *f, H5O_t *oh, hbool_t force);
 
 /* H5O inherits cache-like properties from H5AC */
 static const H5AC_class_t H5AC_OHDR[1] = {{
@@ -64,7 +65,7 @@ static const H5O_class_t *const message_type_g[] = {
     H5O_COMPRESS,	/*0x000B Data storage -- compressed object	*/
     H5O_ATTR,		/*0x000C Attribute list				*/
     H5O_NAME,		/*0x000D Object name				*/
-    NULL,		/*0x000E Object modification date and time	*/
+    H5O_MTIME,		/*0x000E Object modification date and time	*/
     NULL,		/*0x000F Shared header message			*/
     H5O_CONT,		/*0x0010 Object header continuation		*/
     H5O_STAB,		/*0x0011 Symbol table				*/
@@ -1235,6 +1236,9 @@ H5O_modify(H5G_entry_t *ent, const H5O_class_t *type, intn overwrite,
 			"unable to copy message to object header");
 	}
     }
+
+    /* Update the modification time message if any */
+    H5O_touch_oh(ent->file, oh, FALSE);
     
     oh->mesg[idx].flags = flags;
     oh->mesg[idx].dirty = TRUE;
@@ -1252,6 +1256,126 @@ H5O_modify(H5G_entry_t *ent, const H5O_class_t *type, intn overwrite,
 
 
 /*-------------------------------------------------------------------------
+ * Function:	H5O_touch_oh
+ *
+ * Purpose:	If FORCE is non-zero then create a modification time message
+ *		unless one already exists.  Then update any existing
+ *		modification time message with the current time.
+ *
+ * Return:	Success:	SUCCEED
+ *
+ *		Failure:	FAIL
+ *
+ * Programmer:	Robb Matzke
+ *              Monday, July 27, 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5O_touch_oh(H5F_t *f, H5O_t *oh, hbool_t force)
+{
+    intn	idx;
+    time_t	now = time(NULL);
+    size_t	size;
+    
+    FUNC_ENTER(H5O_touch_oh, FAIL);
+    assert(oh);
+
+    /* Look for existing message */
+    for (idx=0; idx<oh->nmesgs; idx++) {
+	if (H5O_MTIME==oh->mesg[idx].type) break;
+    }
+
+    /* Create a new message */
+    if (idx==oh->nmesgs) {
+	if (!force) HRETURN(SUCCEED); /*nothing to do*/
+	size = (H5O_MTIME->raw_size)(f, &now);
+	size = H5O_ALIGN(size);
+	if ((idx=H5O_alloc(f, oh, H5O_MTIME, size))<0) {
+	    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL,
+			  "unable to allocate space for modification time "
+			  "message");
+	}
+    }
+
+    /* Update the native part */
+    if (NULL==oh->mesg[idx].native) {
+	if (NULL==(oh->mesg[idx].native = H5MM_malloc(sizeof(time_t)))) {
+	    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL,
+			  "memory allocation failed for modification time "
+			  "message");
+	}
+    }
+    *((time_t*)(oh->mesg[idx].native)) = now;
+    oh->mesg[idx].dirty = TRUE;
+    oh->dirty = TRUE;
+
+    FUNC_LEAVE(SUCCEED);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_touch
+ *
+ * Purpose:	Touch an object by setting the modification time to the
+ *		current time and marking the object as dirty.  Unless FORCE
+ *		is non-zero, nothing happens if there is no MTIME message in
+ *		the object header.
+ *
+ * Return:	Success:	SUCCEED
+ *
+ *		Failure:	FAIL
+ *
+ * Programmer:	Robb Matzke
+ *              Monday, July 27, 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5O_touch(H5G_entry_t *ent, hbool_t force)
+{
+    H5O_t	*oh = NULL;
+    herr_t	ret_value = FAIL;
+    
+    FUNC_ENTER(H5O_touch, FAIL);
+
+    /* check args */
+    assert(ent);
+    assert(ent->file);
+    assert(H5F_addr_defined(&(ent->header)));
+    if (0==(ent->file->intent & H5F_ACC_RDWR)) {
+	HGOTO_ERROR(H5E_OHDR, H5E_WRITEERROR, FAIL,
+		    "no write intent on file");
+    }
+
+    /* Get the object header */
+    if (NULL==(oh=H5AC_protect(ent->file, H5AC_OHDR, &(ent->header),
+			       NULL, NULL))) {
+	HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, FAIL,
+		    "unable to load object header");
+    }
+
+    /* Create/Update the modification time message */
+    if (H5O_touch_oh(ent->file, oh, force)<0) {
+	HGOTO_ERROR(H5E_OHDR, H5E_CANTINIT, FAIL,
+		    "unable to update object modificaton time");
+    }
+    ret_value = SUCCEED;
+
+ done:
+    if (oh && H5AC_unprotect(ent->file, H5AC_OHDR, &(ent->header), oh)<0) {
+	HRETURN_ERROR(H5E_OHDR, H5E_PROTECT, FAIL,
+		      "unable to release object header");
+    }
+    FUNC_LEAVE(ret_value);
+}
+
+
+/*-------------------------------------------------------------------------
  * Function:	H5O_remove
  *
  * Purpose:	Removes the specified message from the object header.
@@ -1347,6 +1471,7 @@ H5O_remove(H5G_entry_t *ent, const H5O_class_t *type, intn sequence)
 	    oh->mesg[i].native = H5O_free (type, oh->mesg[i].native);
 	    oh->mesg[i].dirty = TRUE;
 	    oh->dirty = TRUE;
+	    H5O_touch_oh(ent->file, oh, FALSE);
 	}
     }
 
@@ -1789,6 +1914,7 @@ H5O_alloc(H5F_t *f, H5O_t *oh, const H5O_class_t *type, size_t size)
 	oh->mesg[null_idx].chunkno = oh->mesg[idx].chunkno;
 	oh->mesg[idx].raw_size = size;
     }
+
     /* initialize the new message */
     oh->mesg[idx].type = type;
     oh->mesg[idx].dirty = TRUE;
@@ -1996,16 +2122,17 @@ H5O_debug(H5F_t *f, const haddr_t *addr, FILE * stream, intn indent,
 	}
 	
 	/* decode the message */
-	if (NULL == oh->mesg[i].native && oh->mesg[i].type->decode) {
-	    if (oh->mesg[i].flags & H5O_FLAG_SHARED) {
-		decode = H5O_SHARED->decode;
-		debug = H5O_SHARED->debug;
-	    } else {
-		decode = oh->mesg[i].type->decode;
-		debug = oh->mesg[i].type->debug;
-	    }
-	    oh->mesg[i].native = (decode)(f, oh->mesg[i].raw, NULL);
+	if (oh->mesg[i].flags & H5O_FLAG_SHARED) {
+	    decode = H5O_SHARED->decode;
+	    debug = H5O_SHARED->debug;
 	} else {
+	    decode = oh->mesg[i].type->decode;
+	    debug = oh->mesg[i].type->debug;
+	}
+	if (NULL==oh->mesg[i].native && oh->mesg[i].type->decode) {
+	    oh->mesg[i].native = (decode)(f, oh->mesg[i].raw, NULL);
+	}
+	if (NULL==oh->mesg[i].native) {
 	    debug = NULL;
 	}
 	
diff --git a/src/H5Omtime.c b/src/H5Omtime.c
new file mode 100644
index 0000000..ae85abb
--- /dev/null
+++ b/src/H5Omtime.c
@@ -0,0 +1,316 @@
+/*
+ * Copyright © 1998 NCSA
+ *		    All rights reserved.
+ *
+ * Programmer:	Robb Matzke <matzke@llnl.gov>
+ *		Friday, July 24, 1998
+ *
+ * Purpose:	The object modification time message.
+ */
+#include <H5private.h>
+#include <H5Eprivate.h>
+#include <H5MMprivate.h>
+#include <H5Oprivate.h>
+
+#define PABLO_MASK	H5O_mtime_mask
+
+static void *H5O_mtime_decode(H5F_t *f, const uint8 *p, H5O_shared_t *sh);
+static herr_t H5O_mtime_encode(H5F_t *f, uint8 *p, const void *_mesg);
+static void *H5O_mtime_copy(const void *_mesg, void *_dest);
+static size_t H5O_mtime_size(H5F_t *f, const void *_mesg);
+static herr_t H5O_mtime_debug(H5F_t *f, const void *_mesg, FILE * stream,
+			     intn indent, intn fwidth);
+
+/* This message derives from H5O */
+const H5O_class_t H5O_MTIME[1] = {{
+    H5O_MTIME_ID,		/*message id number		*/
+    "mtime",			/*message name for debugging	*/
+    sizeof(time_t),		/*native message size		*/
+    H5O_mtime_decode,		/*decode message		*/
+    H5O_mtime_encode,		/*encode message		*/
+    H5O_mtime_copy,		/*copy the native value		*/
+    H5O_mtime_size,		/*raw message size		*/
+    NULL,			/*free internal memory		*/
+    NULL,			/*get share method		*/
+    NULL,			/*set share method		*/
+    H5O_mtime_debug,		/*debug the message		*/
+}};
+
+/* Interface initialization */
+static hbool_t interface_initialize_g = FALSE;
+#define INTERFACE_INIT	NULL
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_mtime_decode
+ *
+ * Purpose:	Decode a modification time message and return a pointer to a
+ *		new time_t value.
+ *
+ * Return:	Success:	Ptr to new message in native struct.
+ *
+ *		Failure:	NULL
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jul 24 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5O_mtime_decode(H5F_t __unused__ *f, const uint8 *p,
+		 H5O_shared_t __unused__ *sh)
+{
+    time_t	*mesg, the_time;
+    intn	i;
+    struct tm	tm;
+    static int	ncalls=0;
+
+    FUNC_ENTER(H5O_mtime_decode, NULL);
+
+    /* check args */
+    assert(f);
+    assert(p);
+    assert (!sh);
+
+    /* Initialize time zone information */
+    if (0==ncalls++) tzset();
+
+    /* decode */
+    for (i=0; i<14; i++) {
+	if (!isdigit(p[i])) {
+	    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, NULL,
+			  "badly formatted modification time message");
+	}
+    }
+
+    /*
+     * Convert YYYYMMDDhhmmss UTC to a time_t.  This is a little problematic
+     * because mktime() operates on local times.  We convert to local time
+     * and then figure out the adjustment based on the local time zone and
+     * daylight savings setting.
+     */
+    memset(&tm, 0, sizeof tm);
+    tm.tm_year = (p[0]-'0')*1000 + (p[1]-'0')*100 +
+		 (p[2]-'0')*10 + (p[3]-'0') - 1900;
+    tm.tm_mon = (p[4]-'0')*10 + (p[5]-'0') - 1;
+    tm.tm_mday = (p[6]-'0')*10 + (p[7]-'0');
+    tm.tm_hour = (p[8]-'0')*10 + (p[9]-'0');
+    tm.tm_min = (p[10]-'0')*10 + (p[11]-'0');
+    tm.tm_sec = (p[12]-'0')*10 + (p[13]-'0');
+    tm.tm_isdst = -1; /*figure it out*/
+    if ((time_t)-1==(the_time=mktime(&tm))) {
+	HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, NULL,
+		      "badly formatted modification time message");
+    }
+
+#if defined(HAVE_TM_GMTOFF)
+    /* FreeBSD, OSF 4.0 */
+    the_time += tm.tm_gmtoff;
+#elif defined(HAVE_TIMEZONE)
+    /* Linux */
+    the_time -= timezone - (tm.tm_isdst?3600:0);
+#elif defined(HAVE_BSDGETTIMEOFDAY) && defined(HAVE_STRUCT_TIMEZONE)
+    /* Irix5.3 */
+    {
+	struct timezone tz;
+	if (BSDgettimeofday(NULL, &tz)<0) {
+	    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, NULL,
+			  "unable to obtain local timezone information");
+	}
+	the_time -= tz.tz_minuteswest*60 - (tm.tm_idst?3600:0);
+    }
+#elif defined(HAVE_GETTIMEOFDAY) && defined(HAVE_STRUCT_TIMEZONE)
+    {
+	struct timezone tz;
+	if (gettimeofday(NULL, &tz)<0) {
+	    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, NULL,
+			  "unable to obtain local timezone information");
+	}
+	the_time -= tz.tz_minuteswest*60 - (tm.tm_isdst?3600:0);
+    }
+#else
+    /*
+     * The catch-all.  If we can't convert a character string universal
+     * coordinated time to a time_t value reliably then we can't decode the
+     * modification time message. This really isn't as bad as it sounds --
+     * the only way a user can get the modification time is from H5Gstat()
+     * and H5G_stat() can gracefully recover.
+     */
+
+    /* Irix64 */
+    HRETURN_ERROR(H5E_OHDR, H5E_CANTINIT, NULL,
+		  "unable to obtain local timezone information");
+#endif
+    
+    /* The return value */
+    if (NULL==(mesg = H5MM_calloc(sizeof(time_t)))) {
+	HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL,
+		       "memory allocation failed");
+    }
+    *mesg = the_time;
+
+    FUNC_LEAVE((void*)mesg);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_mtime_encode
+ *
+ * Purpose:	Encodes a modification time message.
+ *
+ * Return:	Success:	SUCCEED
+ *
+ *		Failure:	FAIL
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jul 24 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5O_mtime_encode(H5F_t __unused__ *f, uint8 *p, const void *_mesg)
+{
+    const time_t	*mesg = (const time_t *) _mesg;
+    struct tm		*tm;
+    
+
+    FUNC_ENTER(H5O_mtime_encode, FAIL);
+
+    /* check args */
+    assert(f);
+    assert(p);
+    assert(mesg);
+
+    /* encode */
+    tm = gmtime(mesg);
+    sprintf(p, "%04d%02d%02d%02d%02d%02d",
+	    1900+tm->tm_year, 1+tm->tm_mon, tm->tm_mday,
+	    tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+    FUNC_LEAVE(SUCCEED);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_mtime_copy
+ *
+ * Purpose:	Copies a message from _MESG to _DEST, allocating _DEST if
+ *		necessary.
+ *
+ * Return:	Success:	Ptr to _DEST
+ *
+ *		Failure:	NULL
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jul 24 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5O_mtime_copy(const void *_mesg, void *_dest)
+{
+    const time_t	*mesg = (const time_t *) _mesg;
+    time_t		*dest = (time_t *) _dest;
+
+    FUNC_ENTER(H5O_mtime_copy, NULL);
+
+    /* check args */
+    assert(mesg);
+    if (!dest && NULL==(dest = H5MM_calloc(sizeof(time_t)))) {
+	HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL,
+		       "memory allocation failed");
+    }
+    
+    /* copy */
+    *dest = *mesg;
+
+    FUNC_LEAVE((void *) dest);
+}
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_mtime_size
+ *
+ * Purpose:	Returns the size of the raw message in bytes not
+ *		counting the message type or size fields, but only the data
+ *		fields.	 This function doesn't take into account
+ *		alignment.
+ *
+ * Return:	Success:	Message data size in bytes w/o alignment.
+ *
+ *		Failure:	FAIL
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jul 14 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static size_t
+H5O_mtime_size(H5F_t __unused__ *f, const void __unused__ *mesg)
+{
+    FUNC_ENTER(H5O_mtime_size, 0);
+
+    /* check args */
+    assert(f);
+    assert(mesg);
+
+    FUNC_LEAVE(16);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_mtime_debug
+ *
+ * Purpose:	Prints debugging info for the message.
+ *
+ * Return:	Success:	SUCCEED
+ *
+ *		Failure:	FAIL
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jul 24 1998
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5O_mtime_debug(H5F_t __unused__ *f, const void *_mesg, FILE *stream,
+		intn indent, intn fwidth)
+{
+    const time_t	*mesg = (const time_t *)_mesg;
+    struct tm		*tm;
+    char		buf[128];
+    
+    FUNC_ENTER(H5O_mtime_debug, FAIL);
+
+    /* check args */
+    assert(f);
+    assert(mesg);
+    assert(stream);
+    assert(indent >= 0);
+    assert(fwidth >= 0);
+
+    /* debug */
+    tm = localtime(mesg);
+
+    
+    strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S %z", tm);
+    fprintf(stream, "%*s%-*s %s\n", indent, "", fwidth,
+	    "Time:", buf);
+
+    FUNC_LEAVE(SUCCEED);
+}
+
diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h
index 7f6cabb..92ba11a 100644
--- a/src/H5Oprivate.h
+++ b/src/H5Oprivate.h
@@ -200,6 +200,12 @@ typedef struct H5O_name_t {
 } H5O_name_t;
 
 /*
+ * Modification time message.  The message is just a `time_t'.
+ */
+#define H5O_MTIME_ID	0x000e
+extern const H5O_class_t H5O_MTIME[1];
+
+/*
  * Shared object message.  This message ID never really appears in an object
  * header.  Instead, bit 2 of the `Flags' field will be set and the ID field
  * will be the ID of the pointed-to message.
@@ -253,6 +259,7 @@ void *H5O_read (H5G_entry_t *ent, const H5O_class_t *type, intn sequence,
 		void *mesg);
 intn H5O_modify (H5G_entry_t *ent, const H5O_class_t *type, intn overwrite,
 		 uintn flags, const void *mesg);
+herr_t H5O_touch(H5G_entry_t *ent, hbool_t force);
 herr_t H5O_remove (H5G_entry_t *ent, const H5O_class_t *type, intn sequence);
 herr_t H5O_reset (const H5O_class_t *type, void *native);
 void *H5O_free (const H5O_class_t *type, void *mesg);
diff --git a/src/H5T.c b/src/H5T.c
index bf0f03b..0d37c02 100644
--- a/src/H5T.c
+++ b/src/H5T.c
@@ -2639,8 +2639,8 @@ H5Tget_member_dims (hid_t type_id, int membno,
     /* Value */
     ndims = dt->u.compnd.memb[membno].ndims;
     for (i = 0; i < ndims; i++) {
-	if (dims[i]) dims[i] = dt->u.compnd.memb[membno].dim[i];
-	if (perm[i]) perm[i] = dt->u.compnd.memb[membno].perm[i];
+	if (dims) dims[i] = dt->u.compnd.memb[membno].dim[i];
+	if (perm) perm[i] = dt->u.compnd.memb[membno].perm[i];
     }
 
     FUNC_LEAVE(ndims);
@@ -2816,10 +2816,10 @@ H5Tinsert_array (hid_t parent_id, const char *name, size_t offset,
     if (!name || !*name) {
 	HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no member name");
     }
-    if (ndims<1 || ndims>4) {
+    if (ndims<0 || ndims>4) {
 	HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid dimensionality");
     }
-    if (!dim) {
+    if (ndims>0 && !dim) {
 	HRETURN_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no dimensions specified");
     }
     for (i=0; i<ndims; i++) {
diff --git a/src/H5config.h.in b/src/H5config.h.in
index 5feabff..5978d92 100644
--- a/src/H5config.h.in
+++ b/src/H5config.h.in
@@ -3,6 +3,13 @@
 /* Define to empty if the keyword does not work.  */
 #undef const
 
+/* Define if your struct tm has tm_zone.  */
+#undef HAVE_TM_ZONE
+
+/* Define if you don't have tm_zone but do have the external array
+   tzname.  */
+#undef HAVE_TZNAME
+
 /* Define as __inline if that's what the C compiler calls it.  */
 #undef inline
 
@@ -15,6 +22,9 @@
 /* Define if you have the ANSI C header files.  */
 #undef STDC_HEADERS
 
+/* Define if your <sys/time.h> declares struct tm.  */
+#undef TM_IN_SYS_TIME
+
 /* Define if your processor stores words with the most significant
    byte first (like Motorola and SPARC, unlike Intel and VAX).  */
 #undef WORDS_BIGENDIAN
@@ -34,6 +44,15 @@
 /* The width parameter for printf formats for type `long long', us. `ll' */
 #undef PRINTF_LL_WIDTH
 
+/* Define if `tm_gmtoff' is a member of `struct tm' */
+#undef HAVE_TM_GMTOFF
+
+/* Define if `timezone' is a global variable */
+#undef HAVE_TIMEZONE
+
+/* Define if `struct timezone' is defined */
+#undef HAVE_STRUCT_TIMEZONE
+
 /* The number of bytes in a double.  */
 #undef SIZEOF_DOUBLE
 
@@ -61,6 +80,9 @@
 /* The number of bytes in a size_t.  */
 #undef SIZEOF_SIZE_T
 
+/* Define if you have the BSDgettimeofday function.  */
+#undef HAVE_BSDGETTIMEOFDAY
+
 /* Define if you have the fork function.  */
 #undef HAVE_FORK
 
@@ -76,6 +98,9 @@
 /* Define if you have the getrusage function.  */
 #undef HAVE_GETRUSAGE
 
+/* Define if you have the gettimeofday function.  */
+#undef HAVE_GETTIMEOFDAY
+
 /* Define if you have the lseek64 function.  */
 #undef HAVE_LSEEK64
 
diff --git a/src/H5private.h b/src/H5private.h
index 2dac272..7f26ff3 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -32,11 +32,14 @@
  */
 #ifdef STDC_HEADERS
 #   include <assert.h>
+#   include <ctype.h>
 #   include <fcntl.h>
 #   include <stdio.h>
 #   include <stdlib.h>
 #   include <string.h>
+#   include <sys/time.h>
 #   include <sys/types.h>
+#   include <time.h>
 #   include <unistd.h>
 #endif
 
diff --git a/src/Makefile.in b/src/Makefile.in
index 4eaebdd..681e285 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -18,9 +18,9 @@ LIB_SRC=H5.c H5A.c H5AC.c H5B.c H5D.c H5E.c H5F.c H5Farray.c H5Fcore.c \
     H5Ffamily.c H5Fistore.c H5Flow.c H5Fmpio.c H5Fsec2.c H5Fsplit.c \
     H5Fstdio.c H5G.c H5Gent.c H5Gnode.c H5Gstab.c H5HG.c H5HL.c H5I.c H5MF.c \
     H5MM.c H5O.c H5Oattr.c H5Ocomp.c H5Ocont.c H5Odtype.c H5Oefl.c \
-    H5Olayout.c H5Oname.c H5Onull.c H5Osdspace.c H5Oshared.c H5Ostab.c H5P.c \
-    H5S.c H5Sall.c H5Shyper.c H5Spoint.c H5Ssimp.c H5Sselect.c H5T.c H5Tbit.c \
-    H5Tconv.c H5Tinit.c H5TB.c H5V.c H5Z.c 
+    H5Olayout.c H5Omtime.c H5Oname.c H5Onull.c H5Osdspace.c H5Oshared.c \
+    H5Ostab.c H5P.c H5S.c H5Sall.c H5Shyper.c H5Spoint.c H5Ssimp.c \
+    H5Sselect.c H5T.c H5Tbit.c H5Tconv.c H5Tinit.c H5TB.c H5V.c H5Z.c 
 
 LIB_OBJ=$(LIB_SRC:.c=.o)