The Flash Center is making available a patch to FLASH 4.5 as a diff
file for the "patch" command.

The patch fixes the support for HDF5 versions beyond 10.8 that has
been added in FLASH 4.5. Users who will link FLASH with an HDF5
library version > 10.8 need to apply this patch for properly
functioning I/O to and from checkpoints and plot files. No new
features have been added.

To apply the patch file:

 * Download file FLASH4.5-a.diff from
   http://flash.uchicago.edu/site/flashcode/user_support/FLASH4.5-a.diff .

   A License Agreement or password is not required for this purpose.

 * Change to the top level directory (i.e., the directory containing the
   source, sites, tools, etc. subdirectories) of your existing FLASH 4.5
   directory tree.

 * Run

    patch -p0 --dry-run < FLASH4.5-a.diff

   to verify that the patch can be applied cleanly.

   If you get error messages, you probably are in the wrong directory, or
   your FLASH version is not 4.5, or you have made local changes that
   interfere with the patch.

 * Run

    patch -p0 < FLASH4.5-a.diff

   to update the FLASH 4.5 source.


Also note: Support for HDF5 versions > 10.8 does not require any new
configuration changes by the user (other than pointing to the desired
library version in Makefile.h or by some system-dependent means).  
In particular, most users with HDF5 will still need to specify
-DH5_USE_16_API in their Makefile.h file, as was already required for
HDF5 v1.8.x and as show in the FLASH User's Guide.