#============================================================================= # 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. #============================================================================= # We use code from the CMake project to detect the Lua version. # Locate LuaJIT library # This module defines # LUAJIT_FOUND, if false, do not try to link to Lua JIT # LUAJIT_LIBRARIES # LUAJIT_INCLUDE_DIR, where to find lua.h # # Additionally it defines the Lua API/ABI version: # 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 FIND_PATH(LUAJIT_INCLUDE_DIR NAMES lua.h PATH_SUFFIXES luajit-2.0) FIND_LIBRARY(LUAJIT_LIBRARIES NAMES luajit-5.1) if (LUAJIT_INCLUDE_DIR AND EXISTS "${LUAJIT_INCLUDE_DIR}/lua.h") # At least 5.[012] have different ways to express the version # so all of them need to be tested. Lua 5.2 defines LUA_VERSION # and LUA_RELEASE as joined by the C preprocessor, so avoid those. file(STRINGS "${LUAJIT_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(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(LUAJIT DEFAULT_MSG LUAJIT_LIBRARIES LUAJIT_INCLUDE_DIR)