ClickHouse/utils/graphite-rollup/CMakeLists.txt

clickhouse_add_executable(graphite-rollup-bench graphite-rollup-bench.cpp)
target_link_libraries(
    graphite-rollup-bench
    PRIVATE
    clickhouse_storages_system
    clickhouse_aggregate_functions
    clickhouse_common_config
    dbms
)
target_include_directories(
    graphite-rollup-bench
    SYSTEM PRIVATE
    ${ClickHouse_SOURCE_DIR}/src ${CMAKE_BINARY_DIR}/src
    ${ClickHouse_SOURCE_DIR}/base ${ClickHouse_SOURCE_DIR}/base/pcg-random
    ${CMAKE_BINARY_DIR}/src/Core/include
    ${POCO_INCLUDE_DIR}
    ${ClickHouse_SOURCE_DIR}/contrib/double-conversion ${ClickHouse_SOURCE_DIR}/contrib/dragonbox/include
    ${ClickHouse_SOURCE_DIR}/contrib/fmtlib/include
    ${ClickHouse_SOURCE_DIR}/contrib/cityhash102/include
    ${RE2_INCLUDE_DIR} ${CMAKE_BINARY_DIR}/contrib/re2-cmake
)

target_compile_definitions(graphite-rollup-bench PRIVATE RULES_DIR="${CMAKE_CURRENT_SOURCE_DIR}")
Prefix overridden add_executable() command with "clickhouse_" A simple HelloWorld program with zero includes except iostream triggers a build of ca. 2000 source files. The reason is that ClickHouse's top-level CMakeLists.txt overrides "add_executable()" to link all binaries against "clickhouse_new_delete". This links against "clickhouse_common_io", which in turn has lots of 3rd party library dependencies ... Without linking "clickhouse_new_delete", the number of compiled files for "HelloWorld" goes down to ca. 70. As an example, the self-extracting-executable needs none of its current dependencies but other programs may also benefit. In order to restore access to the original "add_executable()", the overriding version is now prefixed. There is precedence for a "clickhouse_" prefix (as opposed to "ch_"), for example "clickhouse_split_debug_symbols". In general prefixing makes sense also because overriding CMake commands relies on undocumented behavior and is considered not-so-great practice (). () https://crascit.com/2018/09/14/do-not-redefine-cmake-commands/ 2022-07-11 17:19:15 +00:00			`clickhouse_add_executable(graphite-rollup-bench graphite-rollup-bench.cpp)`
graphite: split tagged/plain rollup rules (for merges perfomance) 2022-01-10 11:34:16 +00:00			`target_link_libraries(`
			`graphite-rollup-bench`
			`PRIVATE`
			`clickhouse_storages_system`
			`clickhouse_aggregate_functions`
			`clickhouse_common_config`
			`dbms`
			`)`
			`target_include_directories(`
			`graphite-rollup-bench`
			`SYSTEM PRIVATE`
			`${ClickHouse_SOURCE_DIR}/src ${CMAKE_BINARY_DIR}/src`
			`${ClickHouse_SOURCE_DIR}/base ${ClickHouse_SOURCE_DIR}/base/pcg-random`
			`${CMAKE_BINARY_DIR}/src/Core/include`
			`${POCO_INCLUDE_DIR}`
			`${ClickHouse_SOURCE_DIR}/contrib/double-conversion ${ClickHouse_SOURCE_DIR}/contrib/dragonbox/include`
			`${ClickHouse_SOURCE_DIR}/contrib/fmtlib/include`
			`${ClickHouse_SOURCE_DIR}/contrib/cityhash102/include`
fix build fail with gcc --fix warnings without disabling some parameters 2022-03-09 14:46:54 +00:00			`${RE2_INCLUDE_DIR} ${CMAKE_BINARY_DIR}/contrib/re2-cmake`
graphite: split tagged/plain rollup rules (for merges perfomance) 2022-01-10 11:34:16 +00:00			`)`

			`target_compile_definitions(graphite-rollup-bench PRIVATE RULES_DIR="${CMAKE_CURRENT_SOURCE_DIR}")`