[MOAB-dev] HDF5 CMake Troubles

[Kuberry, Paul Allen]

Hello,


I ran into three issues while building MOAB with CMake and my own hdf5:


1.)


   Although I had a version of hdf5 library on my PC (apt-get install ...), I was trying to get MOAB to build using CMake with the hdf5 from the one that I had built. It continued to pick up the system version, despite all of my efforts to get it not to.


I was getting messages like:


CMake Warning at test/CMakeLists.txt:129 (add_executable):
  Cannot generate a safe runtime search path for target mbcn_test because
  files in some directories may conflict with libraries in implicit
  directories:

    runtime library [libhdf5.so.7] in /usr/lib/x86_64-linux-gnu may be hidden by files in:
      /ascldap/users/pakuber/hdf5/lib

  Some of these libraries may not be found correctly.


and this was resulting in bad builds (the system version wasn't parallel).


I fixed defaulting to the system version of hdf5 by amending the line in FindHDF5_MOAB.cmake to:find_package(HDF5 COMPONENTS C HL NO_DEFAULT_PATH)


2.) After fixing the libraries, with #1 and ensuring that I get the libraries that I'm trying to use, I found that FindHDF5_MOAB.cmake was not assigning the CMake variable HDF5_INCLUDES, which caused CMake errors.


Rebuilding hdf5 with CMake, I observed that despite finding my hdf5-config.cmake, I needed to add the line:

SET( HDF5_INCLUDES "${HDF5_INCLUDE_DIR}" )

to FindHDF5_MOAB.cmake


as can be seen in the attached diff.patch file.


3.) In config/MOABConfig.cmake.in,


in line 28 and 78 @HDF5_DIR@ is used, but in config/MOABConfig.cmake.cmake,

line 28 is replaced by @HDF5_ROOT@ while line 78 remains @HDF5_DIR@, causing build errors.


This is also address in the attached patch file.


Take care,

---------------------------------------------
Paul Kuberry
Sandia National Laboratories
P.O. Box 5800, Mailstop 1320
Albuquerque, NM 87123-1320
(505) 844-3668
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