#.rst: # FindLua # ------- # # # # Locate Lua library This module defines # # :: # # LUA_FOUND - if false, do not try to link to Lua # LUA_LIBRARIES - both lua and lualib # LUA_INCLUDE_DIR - where to find lua.h # LUA_VERSION_STRING - the version of Lua found # LUA_VERSION_MAJOR - the major version of Lua # LUA_VERSION_MINOR - the minor version of Lua # LUA_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/ #============================================================================= # Copyright 2007-2009 Kitware, Inc. # Copyright 2013 Rolf Eike Beer # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. # # This software is distributed WITHOUT ANY WARRANTY; without even the # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. #============================================================================= # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) 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) if (Lua_FIND_VERSION_EXACT) if (Lua_FIND_VERSION_COUNT GREATER 1) set(lua_append_versions ${Lua_FIND_VERSION_MAJOR}.${Lua_FIND_VERSION_MINOR}) endif () elseif (Lua_FIND_VERSION) # once there is a different major version supported this should become a loop if (NOT Lua_FIND_VERSION_MAJOR GREATER 5) if (Lua_FIND_VERSION_COUNT EQUAL 1) set(lua_append_versions ${LUA_VERSIONS5}) else () foreach (subver IN LISTS LUA_VERSIONS5) if (NOT subver VERSION_LESS ${Lua_FIND_VERSION}) list(APPEND lua_append_versions ${subver}) endif () endforeach () endif () endif () else () # once there is a different major version supported this should become a loop set(lua_append_versions ${LUA_VERSIONS5}) endif () foreach (ver IN LISTS lua_append_versions) string(REGEX MATCH "^([0-9]+)\\.([0-9]+)$" _ver "${ver}") list(APPEND _lua_include_subdirs include/lua${CMAKE_MATCH_1}${CMAKE_MATCH_2} include/lua${CMAKE_MATCH_1}.${CMAKE_MATCH_2} include/lua-${CMAKE_MATCH_1}.${CMAKE_MATCH_2} ) list(APPEND _lua_library_names lua${CMAKE_MATCH_1}${CMAKE_MATCH_2} lua${CMAKE_MATCH_1}.${CMAKE_MATCH_2} lua-${CMAKE_MATCH_1}.${CMAKE_MATCH_2} ) endforeach () set(_lua_include_subdirs "${_lua_include_subdirs}" PARENT_SCOPE) set(_lua_library_names "${_lua_library_names}" PARENT_SCOPE) endfunction(set_lua_version_vars) set_lua_version_vars() find_path(LUA_INCLUDE_DIR lua.h HINTS ENV LUA_DIR PATH_SUFFIXES ${_lua_include_subdirs} include/lua include PATHS ~/Library/Frameworks /Library/Frameworks /sw # Fink /opt/local # DarwinPorts /opt/csw # Blastwave /opt ) unset(_lua_include_subdirs) find_library(LUA_LIBRARY NAMES ${_lua_library_names} lua HINTS ENV LUA_DIR PATH_SUFFIXES lib PATHS ~/Library/Frameworks /Library/Frameworks /sw /opt/local /opt/csw /opt ) unset(_lua_library_names) if (LUA_LIBRARY) # include the math library for Unix if (UNIX AND NOT APPLE AND NOT BEOS) find_library(LUA_MATH_LIBRARY m) set(LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}") # For Windows and Mac, don't need to explicitly include the math library else () set(LUA_LIBRARIES "${LUA_LIBRARY}") endif () endif () if (LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h") # At least 5.[012] have different ways to express the version # so all of them need to be tested. Lua 5.2 defines LUA_VERSION # and LUA_RELEASE as joined by the C preprocessor, so avoid those. file(STRINGS "${LUA_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" LUA_VERSION_MAJOR ";${lua_version_strings};") if (LUA_VERSION_MAJOR MATCHES "^[0-9]+$") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MINOR ";${lua_version_strings};") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_PATCH ";${lua_version_strings};") set(LUA_VERSION_STRING "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}") else () string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") if (NOT LUA_VERSION_STRING MATCHES "^[0-9.]+$") string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};") endif () string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUA_VERSION_MAJOR "${LUA_VERSION_STRING}") string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUA_VERSION_MINOR "${LUA_VERSION_STRING}") string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_PATCH "${LUA_VERSION_STRING}") endif () unset(lua_version_strings) endif() include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) # handle the QUIETLY and REQUIRED arguments and set LUA_FOUND to TRUE if # all listed variables are TRUE FIND_PACKAGE_HANDLE_STANDARD_ARGS(Lua REQUIRED_VARS LUA_LIBRARIES LUA_INCLUDE_DIR VERSION_VAR LUA_VERSION_STRING) mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARY LUA_MATH_LIBRARY)