[svn-r16383] A number of items, mostly related to the use of the core file driver in

metadata cache tests.

1) Fixed the core file driver failures previously observed on some 
   platforms when running the cache2 tests with the core file driver 
   enabled.  This was done by allocating all needed memory on file open.

2) Added code to cache2.c to allow the use of the core file driver to 
   be forced via the HDF5_DRIVER environment variable.

3) Added code to try to figure out whether using the core file driver 
   in cache2 makes sense, and then use it or not as seems appropriate 
   unless overridden via the HDF5_DRIVER environment variable.  

   This code only works under Linux and BSD (including MacOS).  For now
   at least, we use regular files in all other cases unless directed
   otherwise.  

   Note that this required a fair bit of configuration code massage.

4) Updated Makefile.am in examples to run the new mdj_api_example.c 
   example.  Forgot to "svn add mdj_api_example.c" before this checkin,
   but will do so shortly.

Tested on:

   Duty (serial), Liberty (serial), tejeda (serial), jam (serial and 
   parallel), and Phoenix (serial and parallel).  Note that Phoenix is 
   now 64 bit AMD64 Linux.
  

1 files changed, 1 insertions, 0 deletions

diff --git a/MANIFEST b/MANIFEST
index f74f913..070a0b7 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -141,6 +141,7 @@
 ./examples/h5_ref2reg.c
 ./examples/h5_shared_mesg.c
 ./examples/ph5example.c
+./examples/mdj_api_example.c
 ./examples/testh5cc.sh.in