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Building HDF5 kdb+ library from source

To build and install this interface, set the following environment variables:

  1. HDF5_INSTALL_DIR is the location of the HDF5 C API installation (directory containing /include and /lib subdirectories).
  2. QHOME is the q installation directory (containing q.k).

Third-party library installation

Install HDF5 C API according to your architecture.

Linux

Download a supported release of HDF5 and install, instructions are provided in the README of the HDF5 packages. Then set HDF5_INSTALL_DIR to your install directory and add the path to LD_LIBRARY_PATH.

export LD_LIBRARY_PATH=${HDF5_INSTALL_DIR}/lib:$LD_LIBRARY_PATH

macOS

brew install hdf5

Then set HDF5_INSTALL_DIR to your install directory and add the path to DYLD_LIBRARY_PATH.

export DYLD_LIBRARY_PATH=${HDF5_INSTALL_DIR}/lib:$DYLD_LIBRARY_PATH

Windows

Install the Windows C API for HDF5, following the instructions. Then set HDF5_INSTALL_DIR to your install directory and create links to the DLLs in the %QHOME%\w64 directory. e.g.

:: Download zip for Windows and unzip it. ex.) hdf5-1.12.0.zip from https://confluence.hdfgroup.org/display/support/HDF5%201.12.0
> cd hdf5[some version]
> mkdir build
> mkdir install
> set HDF5_INSTALL_DIR=%cd%\install
> cd build
build> cmake --config Release -DCMAKE_INSTALL_PREFIX=%HDF5_INSTALL_DIR% .. -DBUILD_TESTING:BOOL=OFF
build> cmake --build . --config Release --target install
build> cd %QHOME%\w64
w64> MKLINK libhdf5.dll %HDF5_INSTALL_DIR%\bin\libhdf5.dll
w64> MKLINK hdf5.dll %HDF5_INSTALL_DIR%\bin\hdf5.dll

Install HDF5 shared object

Linux/macOS

]$ mkdir build && cd build
build]$ cmake ..
build]$ cmake --build . --target install

Windows

From a Visual Studio command prompt:

> mkdir build && cd build
build> cmake --config Release ..
build> cmake --build . --config Release --target install