ClickHouse/libs/libcommon/cmake/find_gperftools.cmake

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CMake
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if (CMAKE_SYSTEM MATCHES "FreeBSD")
option (USE_INTERNAL_GPERFTOOLS_LIBRARY "Set to FALSE to use system gperftools (tcmalloc) library instead of bundled" OFF)
else ()
option (USE_INTERNAL_GPERFTOOLS_LIBRARY "Set to FALSE to use system gperftools (tcmalloc) library instead of bundled" ${NOT_UNBUNDLED})
endif ()
option (ENABLE_LIBTCMALLOC "Set to TRUE to enable libtcmalloc" ON)
option (DEBUG_LIBTCMALLOC "Set to TRUE to use debug version of libtcmalloc" OFF)
if (ENABLE_LIBTCMALLOC)
#contrib/libtcmalloc doesnt build debug version, try find in system
if (DEBUG_LIBTCMALLOC OR NOT USE_INTERNAL_GPERFTOOLS_LIBRARY)
find_package (Gperftools)
if (GPERFTOOLS_FOUND)
include_directories (${GPERFTOOLS_INCLUDE_DIR})
endif ()
endif ()
if (NOT (GPERFTOOLS_FOUND AND GPERFTOOLS_INCLUDE_DIR AND GPERFTOOLS_TCMALLOC_MINIMAL))
set (USE_INTERNAL_GPERFTOOLS_LIBRARY 1)
set (GPERFTOOLS_INCLUDE_DIR "${ClickHouse_SOURCE_DIR}/contrib/libtcmalloc/include")
set (GPERFTOOLS_TCMALLOC_MINIMAL tcmalloc_minimal_internal)
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include_directories (BEFORE ${GPERFTOOLS_INCLUDE_DIR})
endif ()
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set (USE_TCMALLOC 1)
message (STATUS "Using tcmalloc=${USE_TCMALLOC}: ${GPERFTOOLS_INCLUDE_DIR} : ${GPERFTOOLS_TCMALLOC_MINIMAL}")
endif ()