build(luajit): support universal builds on macOS
To build universal binaries on macOS, one typically only needs to pass multiple `-arch` flags to `clang`. Unfortunately, this strategy causes LuaJIT builds to fail. To work around this, we build LuaJIT for each requested architecture individually first and then use `lipo` to package each architecture slice into a universal binary. To be able to do this on an Intel macOS host or an M1 macOS host without a Rosetta installation, we need some special flags in order to tell LuaJIT that it is cross-compiling for a different target. See [1] for details. [1] https://luajit.org/install.html#cross
This commit is contained in:
Carlo Cabrera
parent
12c62ddea6
commit
adcaf24f42
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@ -5,7 +5,7 @@ function(BuildLuajit)
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cmake_parse_arguments(_luajit
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""
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"TARGET"
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"CONFIGURE_COMMAND;BUILD_COMMAND;INSTALL_COMMAND"
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"CONFIGURE_COMMAND;BUILD_COMMAND;INSTALL_COMMAND;DEPENDS"
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${ARGN})
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if(NOT _luajit_CONFIGURE_COMMAND AND NOT _luajit_BUILD_COMMAND
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AND NOT _luajit_INSTALL_COMMAND)
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@ -30,13 +30,14 @@ function(BuildLuajit)
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CONFIGURE_COMMAND "${_luajit_CONFIGURE_COMMAND}"
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BUILD_IN_SOURCE 1
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BUILD_COMMAND "${_luajit_BUILD_COMMAND}"
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INSTALL_COMMAND "${_luajit_INSTALL_COMMAND}")
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INSTALL_COMMAND "${_luajit_INSTALL_COMMAND}"
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DEPENDS "${_luajit_DEPENDS}")
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# Create symlink for development version manually.
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if(UNIX)
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add_custom_command(
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TARGET ${_luajit_TARGET}
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COMMAND ${CMAKE_COMMAND} -E create_symlink luajit-2.1.0-beta3 ${DEPS_BIN_DIR}/luajit)
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COMMAND ${CMAKE_COMMAND} -E create_symlink luajit-2.1.0-beta3 ${DEPS_BIN_DIR}/${_luajit_TARGET})
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endif()
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endfunction()
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@ -51,30 +52,62 @@ if(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
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else()
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set(AMD64_ABI "")
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endif()
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set(INSTALLCMD_UNIX ${MAKE_PRG} CFLAGS=-fPIC
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CFLAGS+=-DLUA_USE_APICHECK
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CFLAGS+=-funwind-tables
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${NO_STACK_CHECK}
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${AMD64_ABI}
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CCDEBUG+=-g
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Q=
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install)
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set(BUILDCMD_UNIX ${MAKE_PRG} CFLAGS=-fPIC
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CFLAGS+=-DLUA_USE_APICHECK
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CFLAGS+=-funwind-tables
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${NO_STACK_CHECK}
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${AMD64_ABI}
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CCDEBUG+=-g
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Q=)
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if(UNIX)
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if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
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if(CMAKE_OSX_DEPLOYMENT_TARGET)
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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else()
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# Use the same target as our nightly builds
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=10.11")
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endif()
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if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
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if(CMAKE_OSX_DEPLOYMENT_TARGET)
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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else()
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set(DEPLOYMENT_TARGET "")
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execute_process(COMMAND sw_vers -productVersion OUTPUT_VARIABLE MACOS_VERSION)
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=${MACOS_VERSION}")
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endif()
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else()
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set(DEPLOYMENT_TARGET "")
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endif()
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BuildLuaJit(INSTALL_COMMAND ${INSTALLCMD_UNIX}
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if((UNIX AND NOT APPLE) OR (APPLE AND NOT CMAKE_OSX_ARCHITECTURES))
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BuildLuaJit(INSTALL_COMMAND ${BUILDCMD_UNIX}
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CC=${DEPS_C_COMPILER} PREFIX=${DEPS_INSTALL_DIR}
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${DEPLOYMENT_TARGET})
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${DEPLOYMENT_TARGET} install)
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elseif(CMAKE_OSX_ARCHITECTURES AND APPLE)
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# Passing multiple `-arch` flags to the LuaJIT build will cause it to fail.
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# To get a working universal build, we build each requested architecture slice
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# individually then `lipo` them all up.
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set(LUAJIT_SRC_DIR "${DEPS_BUILD_DIR}/src/luajit")
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foreach(ARCH IN LISTS CMAKE_OSX_ARCHITECTURES)
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set(STATIC_CC "${LUAJIT_C_COMPILER} -arch ${ARCH}")
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set(DYNAMIC_CC "${LUAJIT_C_COMPILER} -arch ${ARCH} -fPIC")
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set(TARGET_LD "${LUAJIT_C_COMPILER} -arch ${ARCH}")
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list(APPEND LUAJIT_THIN_EXECUTABLES "${LUAJIT_SRC_DIR}-${ARCH}/src/luajit")
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list(APPEND LUAJIT_THIN_STATIC_LIBS "${LUAJIT_SRC_DIR}-${ARCH}/src/libluajit.a")
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list(APPEND LUAJIT_THIN_DYLIBS "${LUAJIT_SRC_DIR}-${ARCH}/src/libluajit.so")
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list(APPEND LUAJIT_THIN_TARGETS "luajit-${ARCH}")
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# See https://luajit.org/install.html#cross.
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BuildLuaJit(TARGET "luajit-${ARCH}"
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BUILD_COMMAND ${BUILDCMD_UNIX}
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CC=${LUAJIT_C_COMPILER} STATIC_CC=${STATIC_CC}
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DYNAMIC_CC=${DYNAMIC_CC} TARGET_LD=${TARGET_LD}
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PREFIX=${DEPS_INSTALL_DIR}
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${DEPLOYMENT_TARGET})
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endforeach()
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BuildLuaJit(
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CONFIGURE_COMMAND ${BUILDCMD_UNIX} CC=${LUAJIT_C_COMPILER} PREFIX=${DEPS_INSTALL_DIR} ${DEPLOYMENT_TARGET}
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COMMAND ${CMAKE_COMMAND} -E rm -f ${LUAJIT_SRC_DIR}/src/luajit ${LUAJIT_SRC_DIR}/src/libluajit.so ${LUAJIT_SRC_DIR}/src/libluajit.a
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BUILD_COMMAND lipo ${LUAJIT_THIN_EXECUTABLES} -create -output ${LUAJIT_SRC_DIR}/src/luajit
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COMMAND lipo ${LUAJIT_THIN_STATIC_LIBS} -create -output ${LUAJIT_SRC_DIR}/src/libluajit.a
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COMMAND lipo ${LUAJIT_THIN_DYLIBS} -create -output ${LUAJIT_SRC_DIR}/src/libluajit.so
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INSTALL_COMMAND ${BUILDCMD_UNIX} CC=${LUAJIT_C_COMPILER} PREFIX=${DEPS_INSTALL_DIR} ${DEPLOYMENT_TARGET} install
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DEPENDS ${LUAJIT_THIN_TARGETS}
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)
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elseif(MINGW)
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