2022-08-30 15:26:56 +00:00
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option(ENABLE_ANNOY "Enable Annoy index support" ${ENABLE_LIBRARIES})
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2022-09-05 12:41:46 +00:00
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# Annoy index should be disabled with undefined sanitizer. Because of memory storage optimizations
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# (https://github.com/ClickHouse/annoy/blob/9d8a603a4cd252448589e84c9846f94368d5a289/src/annoylib.h#L442-L463)
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# UBSan fails and leads to crash. Simmilar issue is already opened in Annoy repo
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# https://github.com/spotify/annoy/issues/456
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# Problem with aligment can lead to errors like
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# (https://stackoverflow.com/questions/46790550/c-undefined-behavior-strict-aliasing-rule-or-incorrect-alignment)
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# or will lead to crash on arm https://developer.arm.com/documentation/ka003038/latest
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2022-09-05 13:20:49 +00:00
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# This issues should be resolved before annoy became non-experimental (--> setting "allow_experimental_annoy_index")
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if ((NOT ENABLE_ANNOY) OR (SANITIZE STREQUAL "undefined") OR (ARCH_AARCH64))
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2022-08-30 15:26:56 +00:00
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message (STATUS "Not using annoy")
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return()
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endif()
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set(ANNOY_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/annoy")
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set(ANNOY_SOURCE_DIR "${ANNOY_PROJECT_DIR}/src")
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add_library(_annoy INTERFACE)
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target_include_directories(_annoy SYSTEM INTERFACE ${ANNOY_SOURCE_DIR})
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add_library(ch_contrib::annoy ALIAS _annoy)
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target_compile_definitions(_annoy INTERFACE ENABLE_ANNOY)
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target_compile_definitions(_annoy INTERFACE ANNOYLIB_MULTITHREADED_BUILD)
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