mirror of
https://gitlab.kitware.com/cmake/cmake.git
synced 2026-09-25 04:09:36 +03:00
Andrew Maher
3f43795df9
The FASTBuild generator puts source files from different subdirectories into different `FastbuildObjectListNode` instances. This ensures that files with the same name will not write to the same object file. A unity bucket can only contain files from a single `FastbuildObjectListNode` instance, so a side effect of this logic is that unity buckets can only contain files in the same subdirectory. This change fixes the problem by skipping the subdirectory check logic for files with unity enabled. Fixes: #27457
24 lines
937 B
CMake
24 lines
937 B
CMake
# Test that isolated files from subdirectories get proper subdirectory-based object paths,
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# while non-isolated files are combined in unity buckets regardless of subdirectory.
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set(CMAKE_UNITY_BUILD ON)
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file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/subdir1)
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file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/subdir2)
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/main.cpp "int main() { return 0; }\n")
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/subdir1/unity_file.cpp "int unity_file() { return 1; }\n")
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/subdir2/isolated_file.cpp "int isolated_file() { return 2; }\n")
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add_executable(main
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${CMAKE_CURRENT_BINARY_DIR}/main.cpp
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${CMAKE_CURRENT_BINARY_DIR}/subdir1/unity_file.cpp
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${CMAKE_CURRENT_BINARY_DIR}/subdir2/isolated_file.cpp
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)
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set_source_files_properties(
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${CMAKE_CURRENT_BINARY_DIR}/subdir2/isolated_file.cpp
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TARGET_DIRECTORY main
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PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON
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)
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