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Fix HDF5 config-mode detection to use shared library when static is absent

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When HDF5 is found via its CMake config file, the code previously hardcoded
the hdf5_cpp-static target. On distributions that ship only shared HDF5
(e.g. Fedora rawhide where the config file was added in a newer package),
this caused a link failure. Now checks for hdf5_cpp-static, hdf5_cpp-shared,
and hdf5::hdf5_cpp-shared in order, falling back to module-mode discovery.
This commit is contained in:
Bruno Postle
2026-06-04 22:31:48 +01:00
committed by Thomas Krijnen
parent 1f2b20fd86
commit 674ed36e41
1 changed files with 9 additions and 1 deletions
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cmake/FindHDF5.cmake
+9 -1
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@@ -88,7 +88,15 @@ if(NOT HDF5_INCLUDE_DIR OR NOT HDF5_LIBRARY_DIR)
mark_as_advanced(HDF5_DIR)
if(HDF5_DIR)
message(STATUS "HDF5: found config at '${HDF5_DIR}'.")
set(HDF5_LIBRARIES hdf5_cpp-static)
if(TARGET hdf5_cpp-static)
set(HDF5_LIBRARIES hdf5_cpp-static)
elseif(TARGET hdf5_cpp-shared)
set(HDF5_LIBRARIES hdf5_cpp-shared)
elseif(TARGET hdf5::hdf5_cpp-shared)
set(HDF5_LIBRARIES hdf5::hdf5_cpp-shared)
else()
find_package(HDF5 REQUIRED COMPONENTS CXX)
endif()
else()
# If it failed, still try to find as a module.
# E.g. on Ubuntu `libhdf5-dev` doesn't provie hdf5-config.cmake.