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Add include-what-you-use support to CMake #6000

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Add include-what-you-use support to CMake #6000

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8638293
Add `include-what-you-use` support to CMake
derobins Nov 9, 2025
5b4b895
Fix typo
derobins Nov 9, 2025
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11 changes: 11 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -676,6 +676,17 @@ if (HDF5_ENABLE_COVERAGE)
endif ()
endif ()

#-----------------------------------------------------------------------------
# Option to build with include-what-you-use
#-----------------------------------------------------------------------------
option(HDF5_USE_IWYU "Run include-what-you-use when compiling" OFF)

if(HDF5_USE_IWYU)
find_program(IWYU_EXE NAMES include-what-you-use REQUIRED)
set(CMAKE_C_INCLUDE_WHAT_YOU_USE ${IWYU_EXE})
set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE ${IWYU_EXE})
endif()

#-----------------------------------------------------------------------------
# Option to indicate using a memory checker
#-----------------------------------------------------------------------------
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8 changes: 8 additions & 0 deletions release_docs/CHANGELOG.md
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Expand Up @@ -83,6 +83,14 @@ We would like to thank the many HDF5 community members who contributed to HDF5 2

## Configuration

### Added CMake support for include-what-you-use

Adds an `HDF5_USE_IWYU` option to CMake (default OFF). This will run the `include-what-you-use` tool while compiling.

See https://include-what-you-use.org/ for more information.

This requires `include-what-you-use` to be installed.

### Improved the cross-compile support in the build system

The CMake build system has been improved to better support cross-compiling. This includes the following changes:
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