************************************************************************ * Build and Install HDF5 C, C++, Fortran and High-Level Libraries * * and tools with CMake * ************************************************************************ Table of Contents Section I: Preconditions Section II: Quick Step Building HDF5 Libraries with CMake Script Mode Section III: Quick Step Building HDF5 Libraries with CMake Command Mode Section IV: Further considerations Section V: Options for building HDF5 Libraries with CMake command line Section VI: CMake option defaults for HDF5 Section VII: User Defined Options for HDF5 Libraries with CMake Section VIII: User Defined Compile Flags for HDF5 Libraries with CMake Section IX: Considerations for cross-compiling Section X: Using CMakePresets.json for compiling ************************************************************************ ======================================================================== I. Preconditions ======================================================================== Obtaining HDF5 source code 1. Create a directory for your development; for example, "myhdfstuff". 2. Obtain compressed (*.tar or *.zip) HDF5 source from https://portal.hdfgroup.org/display/support/Building+HDF5+with+CMake and put it in "myhdfstuff". Uncompress the file. There should be a hdf5-1.14."X" folder. CMake version 1. We suggest you obtain the latest CMake from the Kitware web site. The HDF5 1.14."X" product requires a minimum CMake version 3.12, where "X" is the current HDF5 release version. If you are using VS2022, the minimum version is 3.21. Note: To change the install prefix from the platform defaults initialize the CMake variable, CMAKE_INSTALL_PREFIX. Users of build scripts will use the INSTALLDIR option. ======================================================================== II. Quick Step Building HDF5 Libraries with CMake Script Mode ======================================================================== This short set of instructions is written for users who want to quickly build the HDF5 C and C++ static libraries and tools with SZIP and ZLIB compression included. This procedure will use the default settings in the config/cmake/cacheinit.cmake file. HDF Group recommends using the ctest script mode to build HDF5. The following files referenced below are available at the HDF web site: https://portal.hdfgroup.org/display/support/Building+HDF5+with+CMake Single compressed file with all the files needed, including source: CMake-hdf5-1.14.X.zip or CMake-hdf5-1.14.X.tar.gz Individual files included in the above mentioned compressed files ----------------------------------------------- CMake build script: CTestScript.cmake External compression szip and zlib libraries: LIBAEC.tar.gz SZip.tar.gz ZLib.tar.gz External compression plugin libraries: hdf5_plugins.tar.gz Examples Source package: HDF5Examples-2.0.x-Source.tar.gz Configuration files: HDF5config.cmake HDF5options.cmake Build scripts for windows or linux ----------------------------------------------- To build HDF5 with the SZIP and ZLIB external libraries you will need to: 1. Change to the development directory "myhdfstuff". 2. Download the CMake-hdf5-1.14.X.zip(.tar.gz) file to "myhdfstuff". Uncompress the file. 3. Change to the source directory "hdf5-1.14.x". CTestScript.cmake file should not be modified. 4. Edit the platform configuration file, HDF5options.cmake, if you want to change the default build environment. (See https://portal.hdfgroup.org/display/support/How+to+Change+HDF5+CMake+Build+Options) 5. From the "myhdfstuff" directory execute the CTest Script with the following options: On 32-bit Windows with Visual Studio 2022, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS2022 -C Release -VV -O hdf5.log On 64-bit Windows with Visual Studio 2022, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS202264 -C Release -VV -O hdf5.log On 32-bit Windows with Visual Studio 2019, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS2019 -C Release -VV -O hdf5.log On 64-bit Windows with Visual Studio 2019, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS201964 -C Release -VV -O hdf5.log On 32-bit Windows with Visual Studio 2017, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS2017 -C Release -VV -O hdf5.log On 64-bit Windows with Visual Studio 2017, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=VS201764 -C Release -VV -O hdf5.log On Linux and Mac, execute: ctest -S HDF5config.cmake,BUILD_GENERATOR=Unix -C Release -VV -O hdf5.log The supplied build scripts are versions of the above. The command above will configure, build, test, and create an install package in the myhdfstuff folder. It will have the format: HDF5-1.14.NN-. On Unix, will be "Linux". A similar .sh file will also be created. On Windows, will be "win64" or "win32". If you have an installer on your system, you will also see a similar file that ends in either .exe (NSIS) or .msi (WiX). Notes on the command line options. The -S option uses the script version of ctest. The value for the -C option (as shown above, "-C Release") must match the setting for CTEST_CONFIGURATION_TYPE in the platform configuration file. The -VV option is for most verbose; use -V for less verbose. The "-O hdf5.log" option saves the output to a log file hdf5.log. 6. To install, "X" is the current release version On Windows (with WiX installed), execute: HDF5-1.14."X"-win32.msi or HDF5-1.14."X"-win64.msi By default this program will install the hdf5 library into the "C:\Program Files" directory and will create the following directory structure: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------cmake On Linux, change to the install destination directory (create it if doesn't exist) and execute: /myhdfstuff/HDF5-1.14."X"-Linux.sh After accepting the license, the script will prompt: By default the HDF5 will be installed in: "/HDF5-1.14."X"-Linux" Do you want to include the subdirectory HDF5-1.14."X"-Linux? Saying no will install in: "" [Yn]: Note that the script will create the following directory structure relative to the install point: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------share On Mac you will find HDF5-1.14."X"-Darwin.dmg in the myhdfstuff folder. Click on the dmg file to proceed with installation. After accepting the license, there will be a folder with the following structure: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------share By default the installation will create the bin, include, lib and cmake folders in the /HDF_Group/HDF5/1.14."X" The depends on the build platform; Windows will set the default to: C:/Program Files/HDF_Group/HDF5/1.14."X" Linux will set the default to: "myhdfstuff/HDF_Group/HDF5/1.14."X" The default can be changed by adding ",INSTALLDIR=" to the "ctest -S HDF5config.cmake..." command. For example on linux: ctest -S HDF5config.cmake,INSTALLDIR=/usr/local/myhdf5,BUILD_GENERATOR=Unix -C Release -VV -O hdf5.log ======================================================================== III. Quick Step Building HDF5 C Static Libraries and Tools with CMake ======================================================================== Notes: This short set of instructions is written for users who want to quickly build just the HDF5 C static library and tools from the HDF5 source code package using the CMake command line tools. Avoid the use of drive letters in paths on Windows. Go through these steps: 1. Change to the development directory "myhdfstuff". 2. Uncompress the HDF5 source file 3. Create a folder "build" in the "myhdfstuff" directory. 4. Change into the "build" folder. 5. Configure the C library, tools and tests with one of the following commands: On Windows 32 bit cmake -G "Visual Studio 16 2019" -A Win32 -DCMAKE_BUILD_TYPE:STRING=Release -DBUILD_SHARED_LIBS:BOOL=OFF -DBUILD_TESTING:BOOL=ON -DHDF5_BUILD_TOOLS:BOOL=ON ..\hdf5-1.14."X" On Windows 64 bit cmake -G "Visual Studio 16 2019 Win64" -A x64 -DCMAKE_BUILD_TYPE:STRING=Release -DBUILD_SHARED_LIBS:BOOL=OFF -DBUILD_TESTING:BOOL=ON -DHDF5_BUILD_TOOLS:BOOL=ON ..\hdf5-1.14."X" On Linux and Mac cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE:STRING=Release -DBUILD_SHARED_LIBS:BOOL=OFF -DBUILD_TESTING:BOOL=ON -DHDF5_BUILD_TOOLS:BOOL=ON ../hdf5-1.14."X" where "X" is the current release version. 6. Build the C library, tools and tests with this command: cmake --build . --config Release 7. Test the C library and tools with this command: ctest . -C Release 8. Create an install image with this command: cpack -C Release CPackConfig.cmake 9. To install On Windows (with WiX installed), execute: HDF5-1.14."X"-win32.msi or HDF5-1.14."X"-win64.msi By default this program will install the hdf5 library into the "C:\Program Files" directory and will create the following directory structure: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------cmake On Linux, change to the install destination directory (create if doesn't exist) and execute: /myhdfstuff/build/HDF5-1.14."X"-Linux.sh After accepting the license, the script will prompt: By default the HDF5 will be installed in: "/HDF5-1.14."X"-Linux" Do you want to include the subdirectory HDF5-1.14."X"-Linux? Saying no will install in: "" [Yn]: Note that the script will create the following directory structure relative to the install point: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------share On Mac you will find HDF5-1.14."X"-Darwin.dmg in the build folder. Click on the dmg file to proceed with installation. After accepting the license, there will be a folder with the following structure: HDF_Group --HDF5 ----1.14."X" ------bin ------include ------lib ------share ======================================================================== IV. Further considerations ======================================================================== 1. We suggest you obtain the latest CMake for windows from the Kitware web site. The HDF5 1.14."X" product requires a minimum CMake version 3.18. 2. If you plan to use Zlib or Szip: A. Download the binary packages and install them in a central location. For example on Windows, create a folder extlibs and install the packages there. Add the following CMake options: -DZLIB_LIBRARY:FILEPATH=some_location/lib/zlib.lib -DZLIB_INCLUDE_DIR:PATH=some_location/include -DZLIB_USE_EXTERNAL:BOOL=OFF -DSZIP_LIBRARY:FILEPATH=some_location/lib/szlib.lib -DSZIP_INCLUDE_DIR:PATH=some_location/include -DSZIP_USE_EXTERNAL:BOOL=OFF where "some_location" is the full path to the extlibs folder. Also the appropriate environment variable must be set; set(ENV{ZLIB_ROOT} "some_location") set(ENV{SZIP_ROOT} "some_location") B. Use source packages from an GIT server by adding the following CMake options: HDF5_ALLOW_EXTERNAL_SUPPORT:STRING="GIT" ZLIB_GIT_URL:STRING="https://some_location/zlib" ZLIB_GIT_BRANCH="some_branch" SZIP_GIT_URL:STRING="https://some_location/szip" SZIP_GIT_BRANCH="some_branch" where "some_location" is the URL to the GIT repository and "some_branch" is a branch in the repository, usually the default. Also set CMAKE_BUILD_TYPE to the configuration type. C. Use source packages from a compressed file by adding the following CMake options: HDF5_ALLOW_EXTERNAL_SUPPORT:STRING="TGZ" ZLIB_TGZ_NAME:STRING="zlib_src.ext" LIBAEC_TGZ_NAME:STRING="szaec_src.ext" TGZPATH:STRING="some_location" where "some_location" is the URL or full path to the compressed file and ext is the type of compression file. Also set CMAKE_BUILD_TYPE to the configuration type during configuration. See the settings in the config/cmake/cacheinit.cmake file HDF uses for testing. D. Use original source packages from a compressed file by adding the following CMake options: LIBAEC_TGZ_NAME:STRING="szip_src.ext" LIBAEC_TGZ_ORIGPATH:STRING="some_location" ZLIB_TGZ_NAME:STRING="zlib_src.ext" ZLIB_TGZ_ORIGPATH:STRING="some_location" HDF5_ALLOW_EXTERNAL_SUPPORT:STRING="TGZ" where "some_location" is the URL and by setting ZLIB_USE_LOCALCONTENT:BOOL=OFF LIBAEC_USE_LOCALCONTENT:BOOL=OFF or full path to the compressed file and ext is the type of compression file. Also set CMAKE_BUILD_TYPE to the configuration type during configuration. See the settings in the config/cmake/cacheinit.cmake file HDF uses for testing. The files can also be retrieved from a local path if necessary TGZPATH:STRING="some_location" 3. If you plan to use compression plugins: A. Use source packages from an GIT server by adding the following CMake options: HDF5_ALLOW_EXTERNAL_SUPPORT:STRING="GIT" PLUGIN_GIT_URL:STRING="http://some_location/plugins" PLUGIN_GIT_BRANCH="some_branch" where "some_location" is the URL to the GIT repository and "some_branch" is a branch in the repository, usually the default. Also set CMAKE_BUILD_TYPE to the configuration type. B. Use source packages from a compressed file by adding the following CMake options: HDF5_ALLOW_EXTERNAL_SUPPORT:STRING="TGZ" PLUGIN_TGZ_NAME:STRING="plugin_src.ext" TGZPATH:STRING="some_location" where "some_location" is the URL or full path to the compressed file and ext is the type of compression file. Also set CMAKE_BUILD_TYPE to the configuration type during configuration. See the settings in the config/cmake/cacheinit.cmake file HDF uses for testing. 4. If you are building on Apple Darwin platforms, you should add the following options: Compiler choice - use xcode by setting the ENV variables of CC and CXX Shared fortran is not supported, build static: BUILD_SHARED_LIBS:BOOL=OFF Additional options: CMAKE_ANSI_CFLAGS:STRING=-fPIC CTEST_USE_LAUNCHERS:BOOL=ON CMAKE_BUILD_WITH_INSTALL_RPATH:BOOL=OFF 5. Windows developers should install NSIS or WiX to create an install image with CPack. Visual Studio Express users will not be able to package HDF5 into an install image executable. 6. Developers can copy the config/cmake/cacheinit.cmake file and alter the the settings for the developers' environment. Then the only options needed on the command line are those options that are different. Example using HDF default cache file: cmake -C ../config/cmake/cacheinit.cmake -G "Visual Studio 16 2019" \ -DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF -DHDF5_ENABLE_Z_LIB_SUPPORT:BOOL=OFF \ -DCMAKE_BUILD_TYPE:STRING=Release .. 7. CMake uses a toolchain of utilities to compile, link libraries and create archives, and other tasks to drive the build. The toolchain utilities available are determined by the languages enabled. In normal builds, CMake automatically determines the toolchain for host builds based on system introspection and defaults. In cross-compiling scenarios, a toolchain file may be specified with information about compiler and utility paths. Variables and Properties Several variables relate to the language components of a toolchain which are enabled. CMAKE__COMPILER is the full path to the compiler used for . CMAKE__COMPILER_ID is the identifier used by CMake for the compiler and CMAKE__COMPILER_VERSION is the version of the compiler. The CMAKE__FLAGS variables and the configuration-specific equivalents contain flags that will be added to the compile command when compiling a file of a particular language. As the linker is invoked by the compiler driver, CMake needs a way to determine which compiler to use to invoke the linker. This is calculated by the LANGUAGE of source files in the target, and in the case of static libraries, the language of the dependent libraries. The choice CMake makes may be overridden with the LINKER_LANGUAGE target property. See the CMake help for more information on using toolchain files. To use a toolchain file with the supplied cmake scripts, see the HDF5options.cmake file under the toolchain section. Notes: CMake and HDF5 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 support 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. Visit the KitWare site for more information about CMake. 3. Build and test results can be submitted to our CDash server: The CDash server for community submissions of hdf5 is at https://cdash.hdfgroup.org. Submitters are requested to register their name and contact info and maintain their test sites. After your first submission, login and go to your "My CDash" link and claim your site. We ask that all submissions include the configuration information and contact information in the CTest Notes Files upload step. See the current reports on CDash for examples. Please follow the convention that "NIGHTLY" submissions maintain the same configuration every time. "EXPERIMENTAL" submissions can be expected to be different for each submission. 4. See the appendix at the bottom of this file for examples of using a ctest script for building and testing. Using a ctest script is preferred because of its flexibility. Notes: CMake in General 1. More information about using CMake can be found at the KitWare site at www.cmake.org. 2. CMake uses the command line; however, the visual CMake tool is available for the configuration step. The steps are similar for all the operating systems supported by CMake. ======================================================================== V. Options for Building HDF5 Libraries with the CMake Command Line ======================================================================== To build the HDF5 Libraries with CMake, go through these five steps: 1. Run CMake 2. Configure the cache settings 3. Build HDF5 4. Test HDF5 5. Package HDF5 (create install image) These five steps are described in 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\hdf5, then use c:\MyHDFstuff\hdf5\build or c:\MyHDFstuff\build\hdf5 as the build directory. RECOMMENDED: Users can perform the configuration step without using the visual cmake-gui program. We use the file cacheinit.cmake in the config/cmake source folder for our testing. This file enables all of the basic options and we turn specific options on or off for testing using the following command line within the build directory: cmake -C /config/cmake/cacheinit.cmake -G "" [-D] Where is * MinGW Makefiles * NMake Makefiles * Unix Makefiles * Visual Studio 14 2015 * Visual Studio 14 2015 Win64 * Visual Studio 15 2017 * Visual Studio 15 2017 Win64 * Visual Studio 16 2019 * Visual Studio 17 2022 is: * SZIP_INCLUDE_DIR:PATH= * SZIP_LIBRARY:FILEPATH= * ZLIB_INCLUDE_DIR:PATH= * ZLIB_LIBRARY:FILEPATH= * :BOOL=[ON | OFF] is: # This is the CMakeCache file used by HDF Group for daily tests. ######################## # EXTERNAL cache entries ######################## set (CMAKE_INSTALL_FRAMEWORK_PREFIX "Library/Frameworks" CACHE STRING "Frameworks installation directory" FORCE) set (HDF_PACKAGE_EXT "" CACHE STRING "Name of HDF package extension" FORCE) set (HDF_PACKAGE_NAMESPACE "hdf5::" CACHE STRING "Name for HDF package namespace (can be empty)" FORCE) set (HDF5_BUILD_CPP_LIB ON CACHE BOOL "Build C++ support" FORCE) set (HDF5_BUILD_FORTRAN ON CACHE BOOL "Build FORTRAN support" FORCE) set (HDF5_BUILD_JAVA ON CACHE BOOL "Build JAVA support" FORCE) set (HDF5_INSTALL_MOD_FORTRAN "NO" CACHE STRING "Copy FORTRAN mod files to include directory (NO SHARED STATIC)" FORCE) set_property (CACHE HDF5_INSTALL_MOD_FORTRAN PROPERTY STRINGS NO SHARED STATIC) set (HDF5_BUILD_GENERATORS ON CACHE BOOL "Build Test Generators" FORCE) set (MPIEXEC_MAX_NUMPROCS "4" CACHE STRING "Minimum number of processes for HDF parallel tests" FORCE) set (HDF5_ENABLE_ALL_WARNINGS ON CACHE BOOL "Enable all warnings" FORCE) set (HDF_TEST_EXPRESS "2" CACHE STRING "Control testing framework (0-3)" FORCE) set (HDF5_MINGW_STATIC_GCC_LIBS ON CACHE BOOL "Statically link libgcc/libstdc++" FORCE) set (HDF5_ALLOW_EXTERNAL_SUPPORT "TGZ" CACHE STRING "Allow External Library Building (NO GIT TGZ)" FORCE) set_property (CACHE HDF5_ALLOW_EXTERNAL_SUPPORT PROPERTY STRINGS NO GIT TGZ) set (ZLIB_PACKAGE_NAME "zlib" CACHE STRING "Name of ZLIB package" FORCE) set (ZLIB_TGZ_NAME "zlib-1.3.tar.gz" CACHE STRING "Use HDF5_ZLib from compressed file" FORCE) set (ZLIB_TGZ_ORIGPATH "https://github.com/madler/zlib/releases/download/v1.3" CACHE STRING "Use ZLIB from original location" FORCE) set (ZLIB_TGZ_NAME "zlib-1.3.tar.gz" CACHE STRING "Use ZLIB from original compressed file" FORCE) set (ZLIB_USE_LOCALCONTENT ON CACHE BOOL "Use local file for ZLIB FetchContent" FORCE) set (LIBAEC_PACKAGE_NAME "libaec" CACHE STRING "Name of AEC SZIP package" FORCE) set (LIBAEC_TGZ_ORIGPATH "https://github.com/MathisRosenhauer/libaec/releases/download/v1.0.6" CACHE STRING "Use LIBAEC from original location" FORCE) set (LIBAEC_TGZ_NAME "libaec-1.0.6.tar.gz" CACHE STRING "Use LIBAEC from original compressed file" FORCE) set (LIBAEC_USE_LOCALCONTENT ON CACHE BOOL "Use local file for LIBAEC FetchContent" FORCE) ####################### # filter plugin options ####################### set (PLUGIN_TGZ_ORIGPATH "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshots" CACHE STRING "Use PLUGINS from original location" FORCE) set (PLUGIN_TGZ_NAME "hdf5_plugins-master.tar.gz" CACHE STRING "Use PLUGINS from compressed file" FORCE) set (PLUGIN_USE_LOCALCONTENT ON CACHE BOOL "Use local file for PLUGIN FetchContent" FORCE) set (PLUGIN_PACKAGE_NAME "pl" CACHE STRING "Name of PLUGIN package" FORCE) ############ # bitshuffle ########### set (BSHUF_GIT_URL "https://github.com/kiyo-masui/bitshuffle.git" CACHE STRING "Use BSHUF from HDF repository" FORCE) set (BSHUF_GIT_BRANCH "master" CACHE STRING "" FORCE) set (BSHUF_TGZ_ORIGPATH "https://github.com/kiyo-masui/bitshuffle/archive/refs/tags" CACHE STRING "Use PLUGINS from original location" FORCE) set (BSHUF_TGZ_NAME "bitshuffle-0.5.1.tar.gz" CACHE STRING "Use BSHUF from compressed file" FORCE) set (BSHUF_PACKAGE_NAME "bshuf" CACHE STRING "Name of BSHUF package" FORCE) ####### # blosc ####### set (BLOSC_GIT_URL "https://github.com/Blosc/c-blosc.git" CACHE STRING "Use BLOSC from Github repository" FORCE) set (BLOSC_GIT_BRANCH "main" CACHE STRING "" FORCE) set (BLOSC_TGZ_ORIGPATH "https://github.com/Blosc/c-blosc/archive/refs/tags" CACHE STRING "Use PLUGINS from original location" FORCE) set (BLOSC_TGZ_NAME "c-blosc-1.21.5.tar.gz" CACHE STRING "Use BLOSC from compressed file" FORCE) set (BLOSC_PACKAGE_NAME "blosc" CACHE STRING "Name of BLOSC package" FORCE) set (BLOSC_ZLIB_GIT_URL "https://github.com/madler/zlib.git" CACHE STRING "Use ZLIB from GitHub repository" FORCE) set (BLOSC_ZLIB_GIT_BRANCH "develop" CACHE STRING "" FORCE) set (BLOSC_ZLIB_TGZ_ORIGPATH "https://github.com/madler/zlib/releases/download/v1.3" CACHE STRING "Use PLUGINS from original location" FORCE) set (BLOSC_ZLIB_TGZ_NAME "zlib-1.3.tar.gz" CACHE STRING "Use ZLib from compressed file" FORCE) set (BLOSC_ZLIB_PACKAGE_NAME "zlib" CACHE STRING "Name of BLOSC_ZLIB package" FORCE) ####### # bzip2 ###### # set (BZ2_GIT_URL "https://github.com/libarchive/bzip2.git" CACHE STRING "Use BZ2 from GitHub repository" FORCE) set (BZ2_GIT_BRANCH "master" CACHE STRING "" FORCE) set (BZ2_TGZ_ORIGPATH "https://github.com/libarchive/bzip2/archive/refs/tags" CACHE STRING "Use PLUGINS from original location" FORCE) set (BZ2_TGZ_NAME "bzip2-bzip2-1.0.8.tar.gz" CACHE STRING "Use BZ2 from compressed file" FORCE) set (BZ2_PACKAGE_NAME "bz2" CACHE STRING "Name of BZ2 package" FORCE) ####### # fpzip ####### set (FPZIP_GIT_URL "https://github.com/LLNL/fpzip.git" CACHE STRING "Use FPZIP from GitHub repository" FORCE) set (FPZIP_GIT_BRANCH "develop" CACHE STRING "" FORCE) set (FPZIP_TGZ_ORIGPATH "https://github.com/LLNL/fpzip/releases/download/1.3.0" CACHE STRING "Use PLUGINS from original location" FORCE) set (FPZIP_TGZ_NAME "fpzip-1.3.0.tar.gz" CACHE STRING "Use FPZIP from compressed file" FORCE) set (FPZIP_PACKAGE_NAME "fpzip" CACHE STRING "Name of FPZIP package" FORCE) ###### # jpeg ###### set (JPEG_GIT_URL "No repo www.ijg.org/files" CACHE STRING "Use JPEG from ILG" FORCE) set (JPEG_GIT_BRANCH "v9e" CACHE STRING "" FORCE) set (JPEG_TGZ_ORIGPATH "https://www.ijg.org/files" CACHE STRING "Use PLUGINS from original location" FORCE) set (JPEG_TGZ_NAME "jpegsrc.v9e.tar.gz" CACHE STRING "Use JPEG from compressed file" FORCE) set (JPEG_PACKAGE_NAME "jpeg" CACHE STRING "Name of JPEG package" FORCE) ###### # lz4 ###### set (BUILD_LZ4_LIBRARY_SOURCE ON CACHE BOOL "build the lz4 library within the plugin" FORCE) set (LZ4_GIT_URL "https://github.com/lz4/lz4.git" CACHE STRING "Use LZ4 from GitHub repository" FORCE) set (LZ4_GIT_BRANCH "dev" CACHE STRING "" FORCE) set (LZ4_TGZ_ORIGPATH "https://github.com/lz4/lz4/releases/download/v1.9.4" CACHE STRING "Use PLUGINS from original location" FORCE) set (LZ4_TGZ_NAME "lz4-1.9.4.tar.gz" CACHE STRING "Use LZ4 from compressed file" FORCE) set (LZ4_PACKAGE_NAME "lz4" CACHE STRING "Name of LZ4 package" FORCE) ###### # lzf ###### set (LZF_URL "http://software.schmorp.de/pkg/liblzf.html" CACHE STRING "LZF home" FORCE) set (LZF_TGZ_ORIGPATH "http://dist.schmorp.de/liblzf" CACHE STRING "Use LZF from original location" FORCE) set (LZF_TGZ_NAME "liblzf-3.6.tar.gz" CACHE STRING "Use LZF from compressed file" FORCE) set (LZF_PACKAGE_NAME "lzf" CACHE STRING "Name of LZF package" FORCE) ######## # mafisc ######## #set (BUILD_MAFISC_LIBRARY_SOURCE OFF CACHE BOOL "build the mafisc library within the plugin" FORCE) #set (MAFISC_PACKAGE_NAME "mafisc" CACHE STRING "Name of MAFISC package" FORCE) ###### # szf ###### set (SZ_GIT_URL "https://github.com/szcompressor/SZ.git" CACHE STRING "Use SZ filter from GitHub repository" FORCE) set (SZ_GIT_BRANCH "master" CACHE STRING "" FORCE) set (SZ_TGZ_ORIGPATH "https://github.com/szcompressor/SZ/releases/download/v2.1.12.5" CACHE STRING "Use PLUGINS from original location" FORCE) set (SZ_TGZ_NAME "SZ-2.1.12.5.tar.gz" CACHE STRING "Use SZ filter from compressed file" FORCE) set (SZF_PACKAGE_NAME "szf" CACHE STRING "Name of SZ package" FORCE) ###### # zfp ###### set (ZFP_GIT_URL "https://github.com/LLNL/zfp.git" CACHE STRING "Use ZFP from GitHub repository" FORCE) set (ZFP_GIT_BRANCH "develop" CACHE STRING "" FORCE) set (ZFP_TGZ_ORIGPATH "https://github.com/LLNL/zfp/releases/download/1.0.0" CACHE STRING "Use PLUGINS from original location" FORCE) set (ZFP_TGZ_NAME "zfp-1.0.0.tar.gz" CACHE STRING "Use ZFP from compressed file" FORCE) set (ZFP_PACKAGE_NAME "zfp" CACHE STRING "Name of ZFP package" FORCE) ###### # zstd ###### set (ZSTD_GIT_URL "https://github.com/facebook/zstd.git" CACHE STRING "Use ZSTD from GitHub repository" FORCE) set (ZSTD_GIT_BRANCH "dev" CACHE STRING "" FORCE) set (ZSTD_TGZ_ORIGPATH "https://github.com/facebook/zstd/releases/download/v1.5.5" CACHE STRING "Use PLUGINS from original location" FORCE) set (ZSTD_TGZ_NAME "zstd-1.5.5.tar.gz" CACHE STRING "Use ZSTD from compressed file" FORCE) set (ZSTD_PACKAGE_NAME "zstd" CACHE STRING "Name of ZSTD package" FORCE) 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 12). CMake will read in the CMakeLists.txt files from the source directory and display options for the HDF5 project. After the first configure you can adjust the cache settings and/or specify the 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 Preferred command line example on Windows in c:\MyHDFstuff\hdf5\build directory: cmake -C ../config/cmake/cacheinit.cmake -G "Visual Studio 16 2019" "-Ax64"\ -DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF -DHDF5_ENABLE_Z_LIB_SUPPORT:BOOL=OFF \ -DCMAKE_BUILD_TYPE:STRING=Release .. 2.3 On Windows, if you are using a Visual Studio Express version you must be sure that the following two options are correctly set/unset: HDF5_NO_PACKAGES:BOOL=ON HDF5_USE_FOLDERS:BOOL=OFF 3. Build HDF5 On Windows, you can build HDF5 using either the Visual Studio Environment or the command line. The command line can be used on all platforms; Windows, 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. 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. 3.2.1 The external libraries (zlib, szip and plugins) can be configured to allow building the libraries by downloading from a GIT repository. The option is 'HDF5_ALLOW_EXTERNAL_SUPPORT'; by adding the following configuration option: -DHDF5_ALLOW_EXTERNAL_SUPPORT:STRING="GIT" The options to control the GIT parameters (config/cmake/cacheinit.cmake file) are: ZLIB_GIT_URL:STRING="http://${git_url}/zlib" ZLIB_GIT_BRANCH="${git_branch}" SZIP_GIT_URL:STRING="http://${git_url}/szip" SZIP_GIT_BRANCH="${git_branch}" PLUGIN_GIT_URL:STRING="http://${git_url}/plugin" PLUGIN_GIT_BRANCH="${git_branch}" ${git_url} should be changed to your location and ${git_branch} is your branch in the repository. Also define CMAKE_BUILD_TYPE to be the configuration type. 3.2.2 Or the external libraries (zlib, szip and plugins) can be configured to allow building the libraries by using a compressed file. The option is 'HDF5_ALLOW_EXTERNAL_SUPPORT' and is enabled by adding the following configuration option: -DHDF5_ALLOW_EXTERNAL_SUPPORT:STRING="TGZ" The options to control the TGZ URL (config/cmake/cacheinit.cmake file) are: ZLIB_TGZ_NAME:STRING="zlib_src.ext" LIBAEC_TGZ_NAME:STRING="libaec_src.ext" PLUGIN_TGZ_NAME:STRING="plugin_src.ext" TGZPATH:STRING="some_location" where "some_location/xxxx_src.ext" is the URL or full path to the compressed file and where ext is the type of the compression file such as .bz2, .tar, .tar.gz, .tgz, or .zip. Also define CMAKE_BUILD_TYPE to be the configuration type. NOTE: HDF5 uses the file named by LIBAEC_TGZ_NAME to build SZIP. This is used to account for the different headers and library names. 4. Test HDF5 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. Packaging HDF5 (create an install image) To package the build into a simple installer using WiX toolset or the NullSoft installer NSIS on Windows, or into compressed files (.tar.gz, .sh, .zip), use the CPack tool. To package the build, navigate to your build directory and execute; cpack -C {Debug | Release} CPackConfig.cmake NOTE: See note 8 of this document for NSIS information. See note 9 of this document for WiX information. Also, if you are using a Visual Studio Express version or want to disable the packaging components, set HDF5_NO_PACKAGES to ON (on the command line add -DHDF5_NO_PACKAGES:BOOL=ON) 6. The files that support building HDF5 with CMake are all 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. 7. More information about using CMake can be found at the KitWare site, www.cmake.org. 8. Nullsoft Scriptable Install System The Nullsoft Scriptable Install System (NSIS) is an open source installation system. It was created by the WinAmp authors to distribute that application, but it is now a general-purpose system which anyone might use. NSIS installers recognize /S for silent installation and /D=dir to specify the "output directory", which is where the program will be installed. These options are case-sensitive, so be sure to type them in upper case. 9. WiX Toolset WiX--the Windows Installer XML toolset--lets developers create installers for Windows Installer, the Windows installation engine. See http://wixtoolset.org. ======================================================================== VI. CMake Option Defaults for HDF5 ======================================================================== In the options listed below, there are three columns of information: Option Name, Option Description, and Option Default. The config/cmake/cacheinit.cmake file can override the following values. ---------------- General Build Options --------------------- BUILD_SHARED_LIBS "Build Shared Libraries" ON BUILD_STATIC_LIBS "Build Static Libraries" ON BUILD_STATIC_EXECS "Build Static Executables" OFF BUILD_TESTING "Build HDF5 Unit Testing" ON if (WINDOWS) DISABLE_PDB_FILES "Do not install PDB files" OFF ---------------- HDF5 Build Options --------------------- HDF5_BUILD_CPP_LIB "Build HDF5 C++ Library" OFF HDF5_BUILD_EXAMPLES "Build HDF5 Library Examples" ON HDF5_BUILD_FORTRAN "Build FORTRAN support" OFF HDF5_BUILD_JAVA "Build JAVA support" OFF HDF5_BUILD_HL_LIB "Build HIGH Level HDF5 Library" ON HDF5_BUILD_TOOLS "Build HDF5 Tools" ON HDF5_BUILD_HL_GIF_TOOLS "Build HIGH Level HDF5 GIF Tools" OFF ---------------- HDF5 Folder Build Options --------------------- Defaults relative to $ HDF5_INSTALL_BIN_DIR "bin" HDF5_INSTALL_LIB_DIR "lib" HDF5_INSTALL_INCLUDE_DIR "include" HDF5_INSTALL_MODULE_DIR "mod" HDF5_INSTALL_CMAKE_DIR "cmake" if (MSVC) HDF5_INSTALL_DATA_DIR "." else () HDF5_INSTALL_DATA_DIR "share" HDF5_INSTALL_DOC_DIR "HDF5_INSTALL_DATA_DIR" HDF5_USE_GNU_DIRS "TRUE to use GNU Coding Standard install directory variables, FALSE to use historical settings" FALSE Defaults as defined by the `GNU Coding Standards` HDF5_INSTALL_BIN_DIR "bin" HDF5_INSTALL_LIB_DIR "lib" HDF5_INSTALL_INCLUDE_DIR "include" HDF5_INSTALL_MODULE_DIR "HDF5_INSTALL_INCLUDE_DIR/mod" HDF5_INSTALL_CMAKE_DIR "HDF5_INSTALL_LIB_DIR/cmake" HDF5_INSTALL_DATA_DIR "share" HDF5_INSTALL_DOC_DIR "HDF5_INSTALL_DATA_DIR/doc/hdf5" ---------------- HDF5 Advanced Options --------------------- ONLY_SHARED_LIBS "Only Build Shared Libraries" OFF ALLOW_UNSUPPORTED "Allow unsupported combinations of configure options" OFF HDF5_ENABLE_PARALLEL "Enable parallel build (requires MPI)" OFF HDF5_ENABLE_THREADSAFE "Enable Threadsafety" OFF HDF5_DIMENSION_SCALES_NEW_REF "Use new-style references with dimension scale APIs" OFF HDF5_EXTERNAL_LIB_PREFIX "Use prefix for custom library naming." "" HDF5_DISABLE_COMPILER_WARNINGS "Disable compiler warnings" OFF HDF5_ENABLE_ALL_WARNINGS "Enable all warnings" OFF HDF5_SHOW_ALL_WARNINGS "Show all warnings (i.e. not suppress "noisy" ones internally)" OFF HDF5_ENABLE_CODESTACK "Enable the function stack tracing (for developer debugging)." OFF HDF5_ENABLE_COVERAGE "Enable code coverage for Libraries and Programs" OFF HDF5_ENABLE_DEBUG_APIS "Turn on extra debug output in all packages" OFF HDF5_ENABLE_DEPRECATED_SYMBOLS "Enable deprecated public API symbols" ON HDF5_ENABLE_EMBEDDED_LIBINFO "embed library info into executables" ON HDF5_ENABLE_PREADWRITE "Use pread/pwrite in sec2/log/core VFDs in place of read/write (when available)" ON HDF5_ENABLE_TRACE "Enable API tracing capability" OFF HDF5_ENABLE_USING_MEMCHECKER "Indicate that a memory checker is used" OFF HDF5_GENERATE_HEADERS "Rebuild Generated Files" ON HDF5_BUILD_GENERATORS "Build Test Generators" OFF HDF5_JAVA_PACK_JRE "Package a JRE installer directory" OFF HDF5_NO_PACKAGES "Do not include CPack Packaging" OFF HDF5_PACK_EXAMPLES "Package the HDF5 Library Examples Compressed File" OFF HDF5_PACK_MACOSX_FRAMEWORK "Package the HDF5 Library in a Frameworks" OFF HDF5_BUILD_FRAMEWORKS "TRUE to build as frameworks libraries, FALSE to build according to BUILD_SHARED_LIBS" FALSE HDF5_PACKAGE_EXTLIBS "CPACK - include external libraries" OFF HDF5_STRICT_FORMAT_CHECKS "Whether to perform strict file format checks" OFF HDF5_WANT_DATA_ACCURACY "IF data accuracy is guaranteed during data conversions" ON HDF5_WANT_DCONV_EXCEPTION "exception handling functions is checked during data conversions" ON DEFAULT_API_VERSION "Enable default API (v16, v18, v110, v112, v114)" "v114" HDF5_USE_FOLDERS "Enable folder grouping of projects in IDEs." ON HDF5_MSVC_NAMING_CONVENTION "Use MSVC Naming conventions for Shared Libraries" OFF HDF5_MINGW_STATIC_GCC_LIBS "Statically link libgcc/libstdc++" OFF if (APPLE) HDF5_BUILD_WITH_INSTALL_NAME "Build with library install_name set to the installation path" OFF if (CMAKE_BUILD_TYPE MATCHES Debug) HDF5_ENABLE_INSTRUMENT "Instrument The library" OFF if (HDF5_BUILD_FORTRAN) HDF5_INSTALL_MOD_FORTRAN "Copy FORTRAN mod files to include directory (NO SHARED STATIC)" SHARED if (BUILD_SHARED_LIBS AND BUILD_STATIC_LIBS) default HDF5_INSTALL_MOD_FORTRAN is SHARED if (BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS) default HDF5_INSTALL_MOD_FORTRAN is SHARED if (NOT BUILD_SHARED_LIBS AND BUILD_STATIC_LIBS) default HDF5_INSTALL_MOD_FORTRAN is STATIC if (NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS) default HDF5_INSTALL_MOD_FORTRAN is SHARED HDF5_ENABLE_ANALYZER_TOOLS "enable the use of Clang tools" OFF HDF5_ENABLE_SANITIZERS "execute the Clang sanitizer" OFF HDF5_ENABLE_FORMATTERS "format source files" OFF HDF5_BUILD_DOC "Build documentation" OFF HDF5_ENABLE_DOXY_WARNINGS "Enable fail if doxygen parsing has warnings." OFF ---------------- HDF5 VFD Options --------------------- HDF5_ENABLE_DIRECT_VFD "Build the Direct I/O Virtual File Driver" OFF HDF5_ENABLE_MIRROR_VFD "Build the Mirror Virtual File Driver" OFF HDF5_ENABLE_ROS3_VFD "Build the ROS3 Virtual File Driver" OFF HDF5_ENABLE_HDFS "Enable HDFS" OFF HDF5_ENABLE_SUBFILING_VFD "Build Parallel HDF5 Subfiling VFD" OFF ---------------- HDF5 Advanced Test Options --------------------- if (BUILD_TESTING) HDF5_TEST_SERIAL "Execute non-parallel tests" ON HDF5_TEST_TOOLS "Execute tools tests" ON HDF5_TEST_EXAMPLES "Execute tests on examples" ON HDF5_TEST_SWMR "Execute SWMR tests" ON HDF5_TEST_PARALLEL "Execute parallel tests" ON HDF5_TEST_FORTRAN "Execute fortran tests" ON HDF5_TEST_CPP "Execute cpp tests" ON HDF5_TEST_JAVA "Execute java tests" ON HDF_TEST_EXPRESS "Control testing framework (0-3)" "3" HDF5_TEST_PASSTHROUGH_VOL "Execute tests with different passthrough VOL connectors" OFF if (HDF5_TEST_PASSTHROUGH_VOL) HDF5_TEST_FHEAP_PASSTHROUGH_VOL "Execute fheap test with different passthrough VOL connectors" ON HDF5_TEST_VFD "Execute tests with different VFDs" OFF if (HDF5_TEST_VFD) HDF5_TEST_FHEAP_VFD "Execute fheap test with different VFDs" ON TEST_SHELL_SCRIPTS "Enable shell script tests" ON HDF5_DISABLE_TESTS_REGEX "Regex pattern to set execution of specific tests to DISABLED" "" ---------------- External Library Options --------------------- HDF5_ALLOW_EXTERNAL_SUPPORT "Allow External Library Building (NO GIT TGZ)" "NO" HDF5_ENABLE_PLUGIN_SUPPORT "Enable PLUGIN Filters" OFF HDF5_ENABLE_SZIP_SUPPORT "Use SZip Filter" ON HDF5_ENABLE_Z_LIB_SUPPORT "Enable Zlib Filters" ON ZLIB_USE_EXTERNAL "Use External Library Building for ZLIB" OFF ZLIB_TGZ_ORIGPATH "Use ZLIB from original location" "https://github.com/madler/zlib/releases/download/v1.2.13" ZLIB_TGZ_NAME "Use ZLIB from original compressed file" "zlib-1.2.13.tar.gz" ZLIB_USE_LOCALCONTENT "Use local file for ZLIB FetchContent" ON SZIP_USE_EXTERNAL "Use External Library Building for SZIP" OFF if (HDF5_ENABLE_SZIP_SUPPORT) HDF5_ENABLE_SZIP_ENCODING "Use SZip Encoding" ON LIBAEC_TGZ_ORIGPATH "Use LIBAEC from original location" "https://github.com/MathisRosenhauer/libaec/releases/download/v1.0.6/libaec-1.0.6.tar.gz" LIBAEC_TGZ_NAME "Use LIBAEC from original compressed file" "libaec-v1.0.6.tar.gz" LIBAEC_USE_LOCALCONTENT "Use local file for LIBAEC FetchContent" ON PLUGIN_USE_EXTERNAL "Use External Library Building for PLUGINS" OFF if (WINDOWS) H5_DEFAULT_PLUGINDIR "%ALLUSERSPROFILE%/hdf5/lib/plugin" else () H5_DEFAULT_PLUGINDIR "/usr/local/hdf5/lib/plugin" endif () NOTE: The BUILD_STATIC_EXECS ("Build Static Executables") option is only valid on some unix operating systems. It adds the "-static" flag to cflags. This flag is not available on windows and some modern linux systems will ignore the flag. NOTE: The HDF5_USE_GNU_DIRS option is usually recommended for linux platforms, but may be useful on other platforms. See the CMake documentation for more details. ---------------- Unsupported Library Options --------------------- The threadsafe, C++ and Java interfaces are not compatible with the HDF5_ENABLE_PARALLEL option. Unless ALLOW_UNSUPPORTED has been specified, the following options must be disabled: HDF5_ENABLE_THREADSAFE, HDF5_BUILD_CPP_LIB, HDF5_BUILD_JAVA The high-level, C++, Fortran and Java interfaces are not compatible with the HDF5_ENABLE_THREADSAFE option because the lock is not hoisted into the higher-level API calls. Unless ALLOW_UNSUPPORTED has been specified, the following options must be disabled: HDF5_BUILD_HL_LIB, HDF5_BUILD_CPP_LIB, HDF5_BUILD_FORTRAN, HDF5_BUILD_JAVA ======================================================================== VII. User Defined Options for HDF5 Libraries with CMake ======================================================================== Support for User Defined macros and options has been added. The file UserMacros.cmake has an example of the technique. In the folder, config/cmake/UserMacros, is an implementation for Windows Visual Studio users for linking libraries to the static CRT - Windows_MT.cmake. Copy the contents of the file, both macro and option, into the UserMacros.cmake file. Then enable the option to the CMake configuration, build and test process. ======================================================================== VIII. User Defined Compile Flags for HDF5 Libraries with CMake ======================================================================== Custom compiler flags can be added by defining the CMAKE_C_FLAGS and CMAKE_CXX_FLAGS variables. Using a cmake script: set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2") Defined on the configure line: cmake -G "Visual Studio 12 2013" -DCMAKE_C_FLAGS:STRING=-O2 .. Debug symbols are enabled with configuration selections Debug or RelWithDebInfo. The difference between Debug and RelWithDebInfo configurations is that RelWithDebInfo optimizes the code similar to Release. It produces fully optimized code, but also creates the symbol table and the debug metadata to give the debugger input to map the execution back to the original code. RelwithDebInfo configuration should not affect the performance when the code is run without a debugger attached. The HDF5_ENABLE_COVERAGE option will add "-g -O0 -fprofile-arcs -ftest-coverage" to CMAKE_C_FLAGS. ======================================================================== IX: Considerations for cross-compiling ======================================================================== Cross-compiling has several consequences for CMake: CMake cannot automatically detect the target platform. CMake cannot find libraries and headers in the default system directories. Executables built during cross compiling cannot be executed. Cross-compiling support means that CMake separates information about the build platform and target platform and gives the user mechanisms to solve cross-compiling issues without additional requirements such as running virtual machines, etc. CMake uses a toolchain of utilities to compile, link libraries and create archives, and other tasks to drive the build. The toolchain utilities available are determined by the languages enabled. CMake stores info about the current toolchain in the following variables: CMAKE_C_COMPILER, CMAKE_CXX_COMPILER. They contain paths to the C and C++ compilers respectively. This is usually enough on desktop platforms. In the case of embedded systems, a custom linker and assembler setting may be needed. In more complex projects you may need to additionally specify binaries to other parts of the toolchain (size, ranlib, objcopy…). All these tools should be set in the corresponding variables: CMAKE_AR, CMAKE_ASM_COMPILER, CMAKE_LINKER, CMAKE_OBJCOPY, CMAKE_RANLIB As for the host and target operating systems, CMake stores their names in the following variables: CMAKE_HOST_SYSTEM_NAME – name of the platform, on which CMake is running (host platform). On major operating systems this is set to the Linux, Windows or Darwin (MacOS) value. CMAKE_SYSTEM_NAME – name of the platform, for which we are building (target platform). By default, this value is the same as CMAKE_HOST_SYSTEM_NAME, which means that we are building for the local platform (no cross-compilation). Put the toolchain variables into a separate file (e.g. .cmake) and set CMAKE_TOOLCHAIN_FILE variable to the path of that file. If cmake is invoked with the command line parameter: --toolchain path/to/file or -DCMAKE_TOOLCHAIN_FILE=path/to/file the file will be loaded early to set values for the compilers. The CMAKE_CROSSCOMPILING variable is set to true when CMake is cross-compiling. Structure of the toolchain file ------------------------------- In fact, the toolchain file doesn’t have any structure. You can put anything you want there. But the best practice is to define at least these settings: path to the toolchain binaries (C compiler, C++ compiler, linker, etc.) name of the target platform (and optionally target processor architecture) required compilation and linking flags on that particular platform toolchain sysroot settings It is recommended that you set the CMAKE_FIND_ROOT_PATH variable to a path where you have an exact copy of the root filesystem you have on your target device (with libraries and binaries pre-compiled for the target processor). References: https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html https://gitlab.com/embeddedlinux/libs/platform https://discourse.cmake.org/t/cross-compile-for-aarch64-on-ubuntu/2161/10 https://stackoverflow.com/questions/54539682/how-to-set-up-cmake-to-cross-compile-with-clang-for-arm-embedded-on-windows?rq=1 https://developer.android.com/ndk/guides/cmake ======================================================================== X: Using CMakePresets.json for compiling ======================================================================== One problem that CMake users often face is sharing settings with other people for common ways to configure a project. This may be done to support CI builds, or for users who frequently use the same build. CMake supports two main files, CMakePresets.json and CMakeUserPresets.json, that allow users to specify common configure options and share them with others. CMake also supports files included with the include field. CMakePresets.json and CMakeUserPresets.json live in the project's root directory. They both have exactly the same format, and both are optional (though at least one must be present if --preset is specified). CMakePresets.json is meant to specify project-wide build details, while CMakeUserPresets.json is meant for developers to specify their own local build details. See CMake documentation for details: https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html HDF-provided CMakePresets.json ------------------------------- The CMakePresets.json provided by HDF requires CMake version 3.25, which supports package and workflow presets, and ninja build system. The top-level configuration group is intended to be a standard set of options to produce a package of shared and staic libraries and tools. Other configurations used for inheriting settings are in the included json file in "config/cmake-presets/hidden-presets.json". Available configurations presets can be displayed by executing: cmake -S --list-presets Using individual command presets (where is GNUC or MSVC or Clang): change directory to the hdf5 source folder cmake --preset ci-StdShar- cmake --build --preset ci-StdShar- ctest --preset ci-StdShar- cpack --preset ci-StdShar- Using the workflow preset to configure, build, test and package the standard configuration is: change directory to the hdf5 source folder execute "cmake --workflow --preset ci-StdShar- --fresh" where is GNUC or MSVC or Clang Creating your own configurations -------------------------------- The quickest way is to copy CMakePresets.json to CMakeUserPresets.json and edit CMakeUserPresets.json configuration names from ci-* to my-*. Change the "configurePresets" section "inherits" field only for those that you have alternate options. Then change the "configurePreset" field entries in the "buildPresets", "testPresets", "packagePresets" sections to match your my-StdShar-. And finally the names settings in the "workflowPresets" steps will also need the ci-* to my-* change. For instance, to change the support files to use a local directory, edit CMakeUserPresets.json: ...... { "name": "my-base-tgz", "hidden": true, "inherits": "ci-base", "cacheVariables": { "HDF5_ALLOW_EXTERNAL_SUPPORT": {"type": "STRING", "value": "TGZ"}, "TGZPATH": {"type": "PATH", "value": "${sourceParentDir}/temp"} } }, { "name": "my-StdCompression", "hidden": true, "inherits": "my-base-tgz", "cacheVariables": { ...... { "name": "my-StdShar", "hidden": true, "inherits": "my-StdCompression", "cacheVariables": { ...... { "name": "my-StdShar-GNUC", "description": "GNUC Standard Config for x64 (Release)", "inherits": [ "ci-x64-Release-GNUC", "ci-CPP", "ci-Fortran", "ci-Java", "my-StdShar", "my-StdExamples" ] } ...... Then you can change or add options for your specific case. ======================================================================== For further assistance, send email to help@hdfgroup.org ========================================================================