| #.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 <lua/lua.h> |
| # |
| # 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 <eike@sf-mail.de> |
| # |
| # 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}.${CMAKE_MATCH_2} |
| lua.${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) |
