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Using_CMake.txt
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Using_CMake.txt
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************************************************************************
* Build and Test HDF5 Examples with CMake *
************************************************************************
Notes: This short instruction is written for users who want to quickly build
HDF5 Examples using the HDF5 binary package using the CMake tools.
More information about using CMake can be found at the KitWare
site, www.cmake.org.
CMake uses the command line; however, the visual CMake tool is
available for the configuration step. The steps are similar for
all of the operating systems supported by CMake.
NOTES:
1. Using CMake for building and using HDF5 is under active
development. While we have attempted to provide error-free
files, please understand that development with CMake has not
been extensively tested outside of HDF. The CMake specific
files may change before the next release.
2. CMake for HDF5 development should be usable on any system
where CMake is supported. Please send us any comments on how
CMake support can be improved on any system.
========================================================================
I. Preconditions
========================================================================
1. We suggest you obtain the latest CMake for windows from the Kitware
web site. The HDF5 product requires a minimum CMake version
of 3.12.
2. You have installed the HDF5 library built with CMake, by executing
the HDF Install Utility (the *.msi file in the binary package for
Windows or the *.sh on Linux). If you are using a Windows platform,
you can obtain a pre-built Windows binary from The HDF Group's website
at www.hdfgroup.org.
3. Set the environment variable HDF5_DIR to the installed location of
the config files for HDF5. On Windows:
HDF5_ROOT=C:/Program Files/HDF_Group/HDF5/1.y.x/1
(Note there are no quote characters used on Windows and all platforms
use forward slashes)
4. Created separate source and build directories.
(CMake commands are executed in the build directory)
========================================================================
II. Building HDF5 Examples with CMake
========================================================================
Go through these steps to build HDF5 applications with CMake.
1. Run CMake
2. Configure the cache settings
3. Build HDF5 Examples
4. Test HDF5 Examples.
These steps are described in more detail below.
1. Run CMake
The visual CMake executable is named "cmake-gui.exe" on Windows and should be
available in your Start menu. For Linux, UNIX, and Mac users the
executable is named "cmake-gui" and can be found where CMake was
installed.
Specify the source and build directories. Make the build and source
directories different. For example on Windows, if the source is at
c:\MyHDFstuff\hdf5ex, then use c:\MyHDFstuff\hdf5ex\build or
c:\MyHDFstuff\build\hdf5ex for the build directory.
PREFERRED:
Users can perform the configuration step without using the visual
cmake-gui program. The following is an example command line
configuration step executed within the build directory:
cmake -G "<generator>" [-D<options>] <sourcepath>
Where <generator> is
* Borland Makefiles
* MSYS Makefiles
* MinGW Makefiles
* NMake Makefiles
* Unix Makefiles
* Visual Studio 15
* Visual Studio 15 Win64
* Visual Studio 17
* Visual Studio 17 Win64
* Visual Studio 19
<options> is:
* H5EX_BUILD_TESTING:BOOL=ON
* BUILD_SHARED_LIBS:BOOL=[ON | OFF]
* HDF_BUILD_FORTRAN:BOOL=[ON | OFF]
* HDF_BUILD_JAVA:BOOL=[ON | OFF]
if the hdf5 library was built with a namespace (i.e. "hdf5::") add:
-D HDF5_NAMESPACE:STRING=hdf5::
2. Configure the cache settings
2.1 Visual CMake users, click the Configure button. If this is the first time you are
running cmake-gui in this directory, you will be prompted for the
generator you wish to use (for example on Windows, Visual Studio 15).
CMake will read in the CMakeLists.txt files from the source directory and
display options for the HDF5 Examples project. After the first configure you
can adjust the cache settings and/or specify locations of other programs.
Any conflicts or new values will be highlighted by the configure
process in red. Once you are happy with all the settings and there are no
more values in red, click the Generate button to produce the appropriate
build files.
On Windows, if you are using a Visual Studio generator, the solution and
project files will be created in the build folder.
On linux, if you are using the Unix Makefiles generator, the Makefiles will
be created in the build folder.
2.2 Alternative command line example on Windows in c:\MyHDFstuff\hdf5ex\build directory:
cmake -G "Visual Studio 19" -DH5EX_BUILD_TESTING:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=ON ..
3. Build HDF5 examples
On Windows, you can build HDF5 examples using either the Visual Studio Environment
or the command line. The command line is normally used on linux, Unix, and Mac.
To build from the command line, navigate to your build directory and
execute the following:
cmake --build . --config {Debug | Release}
NOTE: "--config {Debug | Release}" may be optional on your platform. We
recommend choosing either Debug or Release on Windows. If you are
using the pre-built binaries from HDF, use Release.
3.1 If you wish to use the Visual Studio environment, open the solution
file in your build directory. Be sure to select either Debug or
Release and build the solution.
4. Test HDF5 Examples.
To test the build, navigate to your build directory and execute:
ctest . -C {Debug | Release}
NOTE: "-C {Debug | Release}" may be optional on your platform. We
recommend choosing either Debug or Release to match the build
step on Windows.
5. The files that support building with CMake are all of the files in the
config/cmake folder, the CMakeLists.txt files in each source folder, and
CTestConfig.cmake. CTestConfig.cmake is specific to the internal testing
performed by The HDF Group. It should be altered for the user's
installation and needs. The cacheinit.cmake file settings are used by
The HDF Group for daily testing. It should be altered/ignored for the user's
installation and needs.
========================================================================
III. Using HDF5 Libraries with Visual Studio 2008 (no longer supported)
========================================================================
1. Set up path for external libraries and headers
Invoke Microsoft Visual Studio and go to "Tools" and select "Options",
find "Projects", and then "VC++ Directories".
1.1 If you are building on 64-bit Windows, find the "Platform" dropdown
and select "x64".
1.2 Find the box "Show directories for", choose "Include files", add the
header path (i.e. c:\Program Files\HDF Group\HDF5\hdf5-1.8.x\include)
to the included directories.
1.3 Find the box "Show directories for", choose "Library files", add the
library path (i.e. c:\Program Files\HDF Group\HDF5\hdf5-1.8.x\lib)
to the library directories.
1.4 If using Fortran libraries, you will also need to setup the path
for the Intel Fortran compiler.
************************************************************************
Need further assistance, send email to help@hdfgroup.org