#.rst: # FindLuaJIT # ---------- # # # # Locate Lua library This module defines # # :: # # LUAJIT_FOUND - if false, do not try to link to Lua # LUAJIT_EXECUTABLE - path to luajit command # LUAJIT_LIBRARIES - both lua and lualib # LUAJIT_LIBRARY_DIR - list of dir(s) that contain the libraries to link # LUAJIT_INCLUDE_DIR - where to find lua.h # LUAJIT_LINK_FLAGS - Link flags that are required, platform dependant # LUAJIT_VERSION_STRING - the version of Lua found # LUAJIT_VERSION_MAJOR - the major version of Lua # LUAJIT_VERSION_MINOR - the minor version of Lua # LUAJIT_VERSION_PATCH - the patch version of Lua # # # # Note that the expected include convention is # # :: # # #include "lua.h" # # and not # # :: # # #include # # This is because, the lua location is not standardized and may exist in # locations other than lua/ unset(_lua_include_subdirs) unset(_lua_library_names) # this is a function only to have all the variables inside go away automatically function(set_lua_version_vars) set(LUA_VERSIONS5 5.3 5.2 5.1 5.0) set(LUAJIT_VERSIONS 2.0) if (LuaJIT_FIND_VERSION_EXACT) if (LuaJIT_FIND_VERSION_COUNT GREATER 1) set(luajit_append_versions ${LuaJIT_FIND_VERSION_MAJOR}.${LuaJIT_FIND_VERSION_MINOR}) endif () elseif (LuaJIT_FIND_VERSION) # once there is a different major version supported this should become a loop if (NOT LuaJIT_FIND_VERSION_MAJOR GREATER 5) if (LuaJIT_FIND_VERSION_COUNT EQUAL 1) set(luajit_append_versions ${LUA_VERSIONS5}) else () foreach (subver IN LISTS LUA_VERSIONS5) if (NOT subver VERSION_LESS ${LuaJIT_FIND_VERSION}) list(APPEND luajit_append_versions ${subver}) endif () endforeach () endif () endif () else () # once there is a different major version supported this should become a loop set(luajit_append_versions ${LUA_VERSIONS5}) endif () foreach (ver IN LISTS luajit_append_versions LUAJIT_VERSIONS) string(REGEX MATCH "^([0-9]+)\\.([0-9]+)$" _ver "${ver}") list(APPEND _luajit_include_subdirs include/luajit${CMAKE_MATCH_1}${CMAKE_MATCH_2} include/luajit${CMAKE_MATCH_1}.${CMAKE_MATCH_2} include/luajit-${CMAKE_MATCH_1}.${CMAKE_MATCH_2} ) list(APPEND _luajit_library_names luajit${CMAKE_MATCH_1}${CMAKE_MATCH_2} luajit${CMAKE_MATCH_1}.${CMAKE_MATCH_2} luajit.${CMAKE_MATCH_1}.${CMAKE_MATCH_2} luajit-${CMAKE_MATCH_1}.${CMAKE_MATCH_2} ) endforeach () foreach (ver IN LISTS LUA_VERSIONS5) string(REGEX MATCH "^([0-9]+)\\.([0-9]+)$" _ver "${ver}") list(APPEND _luajit_library_names luajit${CMAKE_MATCH_1}${CMAKE_MATCH_2} luajit${CMAKE_MATCH_1}.${CMAKE_MATCH_2} luajit.${CMAKE_MATCH_1}.${CMAKE_MATCH_2} luajit-${CMAKE_MATCH_1}.${CMAKE_MATCH_2} ) endforeach () set(_luajit_include_subdirs "${_luajit_include_subdirs}" PARENT_SCOPE) set(_luajit_library_names "${_luajit_library_names}" PARENT_SCOPE) endfunction(set_lua_version_vars) set_lua_version_vars() find_path(LUAJIT_INCLUDE_DIR luajit.h HINTS ENV LUAJIT_DIR PATH_SUFFIXES ${_luajit_include_subdirs} include/luajit-2.1 include/luajit include PATHS ${LUAJIT_DIR} ~/Library/Frameworks /Library/Frameworks /sw # Fink /opt/local # DarwinPorts /opt/csw # Blastwave /opt ) unset(_luajit_include_subdirs) find_library(LUAJIT_LIBRARY NAMES ${_luajit_library_names} luajit HINTS ENV LUAJIT_DIR PATH_SUFFIXES lib PATHS ${LUAJIT_DIR} ~/Library/Frameworks /Library/Frameworks /sw /opt/local /opt/csw /opt ) unset(_luajit_library_names) if (LUAJIT_LIBRARY) # include the math library for Unix if (UNIX AND NOT APPLE AND NOT BEOS) find_library(LUAJIT_MATH_LIBRARY m) set(LUAJIT_LIBRARIES "${LUAJIT_LIBRARY};${LUAJIT_MATH_LIBRARY}") # For Windows and Mac, don't need to explicitly include the math library else () set(LUAJIT_LIBRARIES "${LUAJIT_LIBRARY}") endif () set(LUAJIT_LIBRARY_DIR ) foreach (lib ${LUAJIT_LIBRARIES}) get_filename_component(lib_dir ${lib} DIRECTORY CACHE) list(APPEND LUAJIT_LIBRARY_DIR ${lib_dir}) endforeach () endif () # This macro is taken word-for-word from the FindLua module and placed into a macro to keep the semantics the same macro(get_lua_versions include_dir) # At least 5.[012] have different ways to express the version # so all of them need to be tested. Lua 5.2 defines LUA_VERSION # and LUA_RELEASE as joined by the C preprocessor, so avoid those. file(STRINGS "${${include_dir}}/lua.h" lua_version_strings REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUAJIT_LUA_VERSION_MAJOR ";${lua_version_strings};") if (LUAJIT_LUA_VERSION_MAJOR MATCHES "^[0-9]+$") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUAJIT_LUA_VERSION_MINOR ";${lua_version_strings};") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUAJIT_LUA_VERSION_PATCH ";${lua_version_strings};") set(LUA_VERSION_STRING "${LUAJIT_LUA_VERSION_MAJOR}.${LUAJIT_LUA_VERSION_MINOR}.${LUAJIT_LUA_VERSION_PATCH}") else () string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUAJIT_LUA_VERSION_STRING ";${lua_version_strings};") if (NOT LUA_VERSION_STRING MATCHES "^[0-9.]+$") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUAJIT_LUA_VERSION_STRING ";${lua_version_strings};") endif () string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUAJIT_LUA_VERSION_MAJOR "${LUAJIT_LUA_VERSION_STRING}") string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUAJIT_LUA_VERSION_MINOR "${LUAJIT_LUA_VERSION_STRING}") string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUAJIT_LUA_VERSION_PATCH "${LUAJIT_LUA_VERSION_STRING}") endif () unset(lua_version_strings) endmacro(get_lua_versions) if (LUAJIT_INCLUDE_DIR AND EXISTS "${LUAJIT_INCLUDE_DIR}/luajit.h") # LuaJIT defines two preprocessor macros: # LUA_VERSION -> version string with lua version in it # LUA_VERSION_NUM -> numeric representation, i.e. 20003 for 2.0.3 # This just parses the LUAJIT_VERSION macro and extracts the version. file(STRINGS "${LUAJIT_INCLUDE_DIR}/luajit.h" version_strings REGEX "^#define[ \t]+LUAJIT_VERSION?[ \t]+(\"LuaJIT [0-9\\.]+(-(beta|alpha)[0-9]*)?\").*") string(REGEX REPLACE ".*;#define[ \t]+LUAJIT_VERSION[ \t]+\"LuaJIT ([0-9\\.]+(-(beta|alpha)[0-9]*)?)\"[ \t]*;.*" "\\1" LUAJIT_VERSION_STRING_SHORT ";${version_strings};") string(REGEX REPLACE ".*;([0-9]+\\.[0-9]+\\.[0-9]+(-(beta|alpha)[0-9]*)?);.*" "\\1" luajit_version_num ";${LUAJIT_VERSION_STRING_SHORT};") string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.(-(beta|alpha)[0-9]*)?$" "\\1" LUAJIT_VERSION_MAJOR "${luajit_version_num}") string(REGEX REPLACE "^[0-9]+\\.([0-9]+)\\.[0-9](-(beta|alpha)[0-9]*)?$" "\\1" LUAJIT_VERSION_MINOR "${luajit_version_num}") string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+(-(beta|alpha)[0-9]*)?)$" "\\1" LUAJIT_VERSION_PATCH "${luajit_version_num}") get_lua_versions(LUAJIT_INCLUDE_DIR) set(LUAJIT_VERSION_STRING "${LUAJIT_LUA_VERSION_STRING} (${LUAJIT_VERSION_STRING_SHORT})") message("Found LuaJIT ${LUAJIT_VERSION_STRING}") endif() if(APPLE) # Not sure why this is true, but its mentioned here: # http://luajit.org/install.html#embed set(LUAJIT_LINK_FLAGS "-pagezero_size 10000 -image_base 100000000") else() set(LUAJIT_LINK_FLAGS "") endif() find_program(LUAJIT_EXECUTABLE luajit) include(FindPackageHandleStandardArgs) # handle the QUIETLY and REQUIRED arguments and set LuaJIT_FOUND to TRUE if # all listed variables are TRUE FIND_PACKAGE_HANDLE_STANDARD_ARGS(LuaJIT FOUND_VAR LuaJIT_FOUND REQUIRED_VARS LUAJIT_EXECUTABLE LUAJIT_LIBRARIES LUAJIT_INCLUDE_DIR VERSION_VAR LUAJIT_VERSION_STRING) mark_as_advanced(LUAJIT_INCLUDE_DIR LUAJIT_LIBRARY LUAJIT_MATH_LIBRARY LUAJIT_LIBRARY_DIR LUAJIT_LINK_FLAGS)