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865dca0b0d
And besides "ccache <some ccache options> compiler" does not work, since
it interpret everything as ccache options.
Refs: cad2416291
61 lines
2.7 KiB
CMake
61 lines
2.7 KiB
CMake
if (CMAKE_CXX_COMPILER_LAUNCHER MATCHES "ccache" OR CMAKE_CXX_COMPILER_LAUNCHER MATCHES "ccache")
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set(COMPILER_MATCHES_CCACHE 1)
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else()
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set(COMPILER_MATCHES_CCACHE 0)
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endif()
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if ((ENABLE_CCACHE OR NOT DEFINED ENABLE_CCACHE) AND NOT COMPILER_MATCHES_CCACHE)
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find_program (CCACHE_FOUND ccache)
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if (CCACHE_FOUND)
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set(ENABLE_CCACHE_BY_DEFAULT 1)
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else()
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set(ENABLE_CCACHE_BY_DEFAULT 0)
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endif()
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endif()
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if (NOT CCACHE_FOUND AND NOT DEFINED ENABLE_CCACHE AND NOT COMPILER_MATCHES_CCACHE)
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message(WARNING "CCache is not found. We recommend setting it up if you build ClickHouse from source often. "
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"Setting it up will significantly reduce compilation time for 2nd and consequent builds")
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endif()
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# https://ccache.dev/
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option(ENABLE_CCACHE "Speedup re-compilations using ccache (external tool)" ${ENABLE_CCACHE_BY_DEFAULT})
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if (NOT ENABLE_CCACHE)
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return()
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endif()
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if (CCACHE_FOUND AND NOT COMPILER_MATCHES_CCACHE)
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execute_process(COMMAND ${CCACHE_FOUND} "-V" OUTPUT_VARIABLE CCACHE_VERSION)
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string(REGEX REPLACE "ccache version ([0-9\\.]+).*" "\\1" CCACHE_VERSION ${CCACHE_VERSION})
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if (CCACHE_VERSION VERSION_GREATER "3.2.0" OR NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
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message(STATUS "Using ${CCACHE_FOUND} ${CCACHE_VERSION}")
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# debian (debhlpers) set SOURCE_DATE_EPOCH environment variable, that is
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# filled from the debian/changelog or current time.
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#
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# - 4.0+ ccache always includes this environment variable into the hash
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# of the manifest, which do not allow to use previous cache,
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# - 4.2+ ccache ignores SOURCE_DATE_EPOCH for every file w/o __DATE__/__TIME__
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#
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# So for:
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# - 4.2+ does not require any sloppiness
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# - 4.0+ will ignore SOURCE_DATE_EPOCH environment variable.
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if (CCACHE_VERSION VERSION_GREATER_EQUAL "4.2")
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message(STATUS "ccache is 4.2+ no quirks for SOURCE_DATE_EPOCH required")
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elseif (CCACHE_VERSION VERSION_GREATER_EQUAL "4.0")
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message(STATUS "Ignore SOURCE_DATE_EPOCH for ccache")
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set_property (GLOBAL PROPERTY RULE_LAUNCH_COMPILE "env -u SOURCE_DATE_EPOCH ${CCACHE_FOUND}")
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set_property (GLOBAL PROPERTY RULE_LAUNCH_LINK "env -u SOURCE_DATE_EPOCH ${CCACHE_FOUND}")
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else()
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set_property (GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_FOUND})
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set_property (GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE_FOUND})
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endif()
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else ()
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message(${RECONFIGURE_MESSAGE_LEVEL} "Not using ${CCACHE_FOUND} ${CCACHE_VERSION} bug: https://bugzilla.samba.org/show_bug.cgi?id=8118")
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endif ()
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elseif (NOT CCACHE_FOUND AND NOT COMPILER_MATCHES_CCACHE)
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message (${RECONFIGURE_MESSAGE_LEVEL} "Cannot use ccache")
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endif ()
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