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build: luajit-cmake: add new luajit-cmake project
In order to simplify the build of LuaJIT, this patch adds the project 'luajit-cmake', which is just a CMake wrapper with proper rules to compile an external luajit source code repository. Signed-off-by: Eduardo Silva <eduardo@calyptia.com>
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‎cmake/luajit.cmake‎

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# This file provides 'libluajit' target for both UNIX and Windows.
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#
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# To enable LuaJIT, include this file and link the build target:
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#
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# include(cmake/luajit.cmake)
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# target_link_libraries(fluent-bit libluajit)
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add_library(libluajit STATIC IMPORTED GLOBAL)
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# Global Settings
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set(LUAJIT_SRC ${CMAKE_CURRENT_SOURCE_DIR}/${FLB_PATH_LIB_LUAJIT})
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set(LUAJIT_DEST ${CMAKE_CURRENT_BINARY_DIR})
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if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
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set(CFLAGS "${CFLAGS} -isysroot ${CMAKE_OSX_SYSROOT} -fno-stack-check")
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if(DEFINED ENV{MACOSX_DEPLOYMENT_TARGET})
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# Refer MACOSX_DEPLOYMENT_TARGET if available.
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=$ENV{MACOSX_DEPLOYMENT_TARGET}")
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else()
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# Calculate MACOSX_DEPLOYMENT_TARGET from sw_vers command result.
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execute_process(COMMAND sw_vers -productVersion OUTPUT_VARIABLE MACOSX_DEPLOYMENT_TARGET)
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string(REGEX REPLACE "\n$" "" MACOSX_DEPLOYMENT_TARGET ${MACOSX_DEPLOYMENT_TARGET})
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string(REPLACE "." ";" DEPLOYMENT_VERSION_LIST ${MACOSX_DEPLOYMENT_TARGET})
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list(GET DEPLOYMENT_VERSION_LIST 0 MACOSX_DEPLOYMENT_TARGET_MAJOR)
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list(GET DEPLOYMENT_VERSION_LIST 1 MACOSX_DEPLOYMENT_TARGET_MINOR)
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set(DEPLOYMENT_TARGET "MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET_MAJOR}.${MACOSX_DEPLOYMENT_TARGET_MINOR}")
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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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# luajit (UNIX)
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# =============
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ExternalProject_Add(luajit
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BUILD_IN_SOURCE TRUE
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EXCLUDE_FROM_ALL TRUE
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SOURCE_DIR ${LUAJIT_SRC}
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CONFIGURE_COMMAND ./configure
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BUILD_COMMAND $(MAKE) CC=${CMAKE_C_COMPILER} ${DEPLOYMENT_TARGET} CFLAGS=${CFLAGS} LDFLAGS="-L${CMAKE_OSX_SYSROOT}/usr/lib" BUILDMODE=static "XCFLAGS=-fPIC"
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INSTALL_COMMAND cp src/libluajit.a "${LUAJIT_DEST}/lib/libluajit.a")
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# luajit (Windows)
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# ================
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if (MSVC)
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ExternalProject_Add(luajit-windows
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BUILD_IN_SOURCE TRUE
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EXCLUDE_FROM_ALL TRUE
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SOURCE_DIR ${LUAJIT_SRC}/src
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CONFIGURE_COMMAND ""
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BUILD_COMMAND ./msvcbuild.bat static
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INSTALL_COMMAND ${CMAKE_COMMAND} -E copy lua51.lib "${LUAJIT_DEST}/lib/libluajit.lib")
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endif()
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# Hook the buld definition to 'libluajit' target
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if(MSVC)
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add_dependencies(libluajit luajit-windows)
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set(LUAJIT_STATIC_LIB "${LUAJIT_DEST}/lib/libluajit.lib")
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else()
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add_dependencies(libluajit luajit)
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set(LUAJIT_STATIC_LIB "${LUAJIT_DEST}/lib/libluajit.a")
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endif()
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set_target_properties(libluajit PROPERTIES IMPORTED_LOCATION "${LUAJIT_STATIC_LIB}")
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include_directories("${LUAJIT_DEST}/include/")
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# luajit cmake
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option(LUAJIT_DIR "Path of LuaJIT 2.1 source dir" ON)
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set(LUAJIT_DIR ${FLB_PATH_ROOT_SOURCE}/${FLB_PATH_LIB_LUAJIT})
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add_subdirectory("lib/luajit-cmake")

‎lib/luajit-cmake/.gitignore‎

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build
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‎lib/luajit-cmake/Bundle.cmake‎

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# Modfied from luajit.cmake Added LUA_ADD_EXECUTABLE Ryan Phillips <ryan at
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# trolocsis.com> This CMakeLists.txt has been first taken from LuaDist Copyright
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# (C) 2007-2011 LuaDist. Created by Peter Drahoš Redistribution and use of this
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# file is allowed according to the terms of the MIT license. Debugged and (now
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# seriously) modIFied by Ronan Collobert, for Torch7
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if(NOT DEFINED BUNDLE_CMD)
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set(BUNDLE_CMD luajit CACHE STRING "Use lua to do lua file bundle")
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endif()
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if(NOT DEFINED BUNDLE_CMD_ARGS)
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set(BUNDLE_CMD_ARGS "" CACHE STRING "Bundle args for cross compile")
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endif()
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if(NOT DEFINED BUNDLE_USE_LUA2C)
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set(BUNDLE_USE_LUA2C OFF CACHE BOOL "Use bin2c.lua do lua file bundle")
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endif()
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include (TestBigEndian)
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TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
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if(IS_BIG_ENDIAN)
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message(STATUS "BIG_ENDIAN")
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else()
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message(STATUS "LITTLE_ENDIAN")
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endif()
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if(BUNDLE_USE_LUA2C)
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file(COPY ${CMAKE_CURRENT_LIST_DIR}/lua2c.lua DESTINATION ${LUA_TARGET_PATH})
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endif()
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macro(LUA_add_custom_commands luajit_target)
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set(target_srcs "")
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foreach(file ${ARGN})
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if(${file} MATCHES ".*\\.lua$")
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if(NOT IS_ABSOLUTE ${file})
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set(file "${CMAKE_CURRENT_SOURCE_DIR}/${file}")
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endif()
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set(source_file ${file})
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string(LENGTH ${CMAKE_SOURCE_DIR} _luajit_source_dir_length)
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string(LENGTH ${file} _luajit_file_length)
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math(EXPR _begin "${_luajit_source_dir_length} + 1")
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math(EXPR _stripped_file_length
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"${_luajit_file_length} - ${_luajit_source_dir_length} - 1")
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string(SUBSTRING ${file}
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${_begin}
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${_stripped_file_length}
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stripped_file)
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set(
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generated_file
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"${CMAKE_BINARY_DIR}/luacode_tmp/${stripped_file}_${luajit_target}_generated.c"
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)
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add_custom_command(
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OUTPUT ${generated_file}
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MAIN_DEPENDENCY ${source_file}
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DEPENDS ${LUA_TARGET}
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COMMAND ${BUNDLE_CMD} ARGS
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${BUNDLE_CMD_ARGS} lua2c.lua ${source_file} ${generated_file}
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COMMENT "${BUNDLE_CMD} ${BUNDLE_CMD_ARGS} lua2c.lua ${source_file} ${generated_file}"
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WORKING_DIRECTORY ${LUA_TARGET_PATH})
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get_filename_component(basedir ${generated_file} PATH)
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file(MAKE_DIRECTORY ${basedir})
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set(target_srcs ${target_srcs} ${generated_file})
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set_source_files_properties(${generated_file}
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properties
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generated
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true # to say that "it is OK that the obj-
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# files do not exist before build time"
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)
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else()
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set(target_srcs ${target_srcs} ${file})
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endif()
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endforeach()
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endmacro()
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if(NOT LJ_TARGET_ARCH)
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include(${CMAKE_CURRENT_LIST_DIR}/Modules/DetectArchitecture.cmake)
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detect_architecture(LJ_DETECTED_ARCH)
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if("${LJ_DETECTED_ARCH}" STREQUAL "x86")
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set(LJ_TARGET_ARCH "x86")
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "x86_64")
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set(LJ_TARGET_ARCH "x64")
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "AArch64")
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set(LJ_TARGET_ARCH "arm64")
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "ARM")
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set(LJ_TARGET_ARCH "arm")
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "Mips64")
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if(IS_BIG_ENDIAN)
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set(LJ_TARGET_ARCH "mips64")
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else()
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set(LJ_TARGET_ARCH "mips64el")
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endif()
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "Mips")
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if(IS_BIG_ENDIAN)
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set(LJ_TARGET_ARCH "mips")
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else()
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set(LJ_TARGET_ARCH "mipsel")
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endif()
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elseif("${LJ_DETECTED_ARCH}" STREQUAL "PowerPC")
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if(LJ_64)
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set(LJ_TARGET_ARCH "ppc64")
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else()
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set(LJ_TARGET_ARCH "ppc")
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endif()
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else()
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message(FATAL_ERROR "Unsupported target architecture: '${LJ_DETECTED_ARCH}'")
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endif()
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endif()
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macro(LUAJIT_add_custom_commands luajit_target)
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set(target_srcs "")
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if(WIN32)
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set(LJDUMP_OPT -b -g -a ${LJ_TARGET_ARCH} -o windows)
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elseif(APPLE)
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set(LJDUMP_OPT -b -g -a ${LJ_TARGET_ARCH} -o osx)
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elseif(ANDROID OR ${CMAKE_SYSTEM_NAME} STREQUAL Linux)
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set(LJDUMP_OPT -b -g -a ${LJ_TARGET_ARCH} -o linux)
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else()
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set(LJDUMP_OPT -b -g -a ${LJ_TARGET_ARCH})
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endif()
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foreach(file ${ARGN})
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if(${file} MATCHES ".*\\.lua$")
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if(NOT IS_ABSOLUTE ${file})
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set(file "${CMAKE_CURRENT_SOURCE_DIR}/${file}")
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endif()
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set(source_file ${file})
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string(LENGTH ${CMAKE_SOURCE_DIR} _luajit_source_dir_length)
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string(LENGTH ${file} _luajit_file_length)
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math(EXPR _begin "${_luajit_source_dir_length} + 1")
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math(EXPR _stripped_file_length
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"${_luajit_file_length} - ${_luajit_source_dir_length} - 1")
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string(SUBSTRING ${file}
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${_begin}
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${_stripped_file_length}
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stripped_file)
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set(
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generated_file
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"${CMAKE_CURRENT_BINARY_DIR}/jitted_tmp/${stripped_file}_${luajit_target}_generated${CMAKE_C_OUTPUT_EXTENSION}"
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)
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string(REPLACE ";" " " LJDUMP_OPT_STR "${LJDUMP_OPT}")
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add_custom_command(
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OUTPUT ${generated_file}
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MAIN_DEPENDENCY ${source_file}
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DEPENDS ${LUA_TARGET}
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COMMAND ${BUNDLE_CMD} ARGS
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${BUNDLE_CMD_ARGS}
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${LJDUMP_OPT} ${source_file} ${generated_file}
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COMMENT "${BUNDLE_CMD} ${BUNDLE_CMD_ARGS} ${LJDUMP_OPT_STR} ${source_file} ${generated_file}"
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WORKING_DIRECTORY ${LUA_TARGET_PATH})
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get_filename_component(basedir ${generated_file} PATH)
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file(MAKE_DIRECTORY ${basedir})
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set(target_srcs ${target_srcs} ${generated_file})
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set_source_files_properties(${generated_file}
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properties
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external_object
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true # this is an object file
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generated
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true # to say that "it is OK that the obj-
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# files do not exist before build time"
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)
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else()
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set(target_srcs ${target_srcs} ${file})
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endif()
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endforeach()
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endmacro()
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if(BUNDLE_USE_LUA2C)
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macro(LUA_ADD_CUSTOM luajit_target)
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lua_add_custom_commands(${luajit_target} ${ARGN})
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endmacro()
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macro(LUA_ADD_EXECUTABLE luajit_target)
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lua_add_custom_commands(${luajit_target} ${ARGN})
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add_executable(${luajit_target} ${target_srcs})
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endmacro()
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else()
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macro(LUA_ADD_CUSTOM luajit_target)
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luajit_add_custom_commands(${luajit_target} ${ARGN})
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endmacro()
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macro(LUA_ADD_EXECUTABLE luajit_target)
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luajit_add_custom_commands(${luajit_target} ${ARGN})
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add_executable(${luajit_target} ${target_srcs})
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endmacro()
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endif()

‎lib/luajit-cmake/CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.0)
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option(LUA_DIR "Path of Lua 5.4 source dir" OFF)
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option(LUAJIT_DIR "Path of LuaJIT 2.1 source dir" OFF)
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if(LUAJIT_DIR)
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project(luajit)
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include(LuaJIT.cmake)
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if (PARENT_DIRECTORY)
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set(LUA_TARGET luajit PARENT_SCOPE)
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set(LUA_LIBRARIES libluajit PARENT_SCOPE)
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endif()
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elseif(LUA_DIR)
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project(lua)
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include(lua.cmake)
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if (PARENT_DIRECTORY)
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set(LUA_TARGET lua PARENT_SCOPE)
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set(LUA_LIBRARIES liblua PARENT_SCOPE)
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endif()
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else()
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message(FATAL_ERROR "Must set LUAJIT_DIR or LUA_DIR to build with CMake")
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endif()

‎lib/luajit-cmake/LICENSE‎

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The MIT License (MIT)
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Copyright © 2021 <zhaozg@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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