119 lines
3.9 KiB
CMake
119 lines
3.9 KiB
CMake
# Locate Lua library
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# This module defines
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# LUA_EXECUTABLE, if found
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# LUA_FOUND, if false, do not try to link to Lua
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# LUA_LIBRARIES
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# LUA_INCLUDE_DIR, where to find lua.h
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# LUA_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
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#
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# Note that the expected include convention is
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# #include "lua.h"
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# and not
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# #include <lua/lua.h>
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# This is because, the lua location is not standardized and may exist
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# in locations other than lua/
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#=============================================================================
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# Copyright 2007-2009 Kitware, Inc.
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# Modified to support Lua 5.2 by LuaDist 2012
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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#
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# The required version of Lua can be specified using the
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# standard syntax, e.g. FIND_PACKAGE(Lua 5.1)
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# Otherwise the module will search for any available Lua implementation
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# Always search for non-versioned lua first (recommended)
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SET(_POSSIBLE_LUA_INCLUDE include include/lua)
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SET(_POSSIBLE_LUA_EXECUTABLE lua)
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SET(_POSSIBLE_LUA_LIBRARY lua)
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# Determine possible naming suffixes (there is no standard for this)
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IF(Lua_FIND_VERSION_MAJOR AND Lua_FIND_VERSION_MINOR)
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SET(_POSSIBLE_SUFFIXES "${Lua_FIND_VERSION_MAJOR}${Lua_FIND_VERSION_MINOR}" "${Lua_FIND_VERSION_MAJOR}.${Lua_FIND_VERSION_MINOR}" "-${Lua_FIND_VERSION_MAJOR}.${Lua_FIND_VERSION_MINOR}")
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ELSE(Lua_FIND_VERSION_MAJOR AND Lua_FIND_VERSION_MINOR)
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SET(_POSSIBLE_SUFFIXES "52" "5.2" "-5.2" "51" "5.1" "-5.1")
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ENDIF(Lua_FIND_VERSION_MAJOR AND Lua_FIND_VERSION_MINOR)
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# Set up possible search names and locations
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FOREACH(_SUFFIX ${_POSSIBLE_SUFFIXES})
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LIST(APPEND _POSSIBLE_LUA_INCLUDE "include/lua${_SUFFIX}")
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LIST(APPEND _POSSIBLE_LUA_EXECUTABLE "lua${_SUFFIX}")
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LIST(APPEND _POSSIBLE_LUA_LIBRARY "lua${_SUFFIX}")
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ENDFOREACH(_SUFFIX)
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# Find the lua executable
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FIND_PROGRAM(LUA_EXECUTABLE
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NAMES ${_POSSIBLE_LUA_EXECUTABLE}
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)
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# Find the lua header
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FIND_PATH(LUA_INCLUDE_DIR lua.h
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HINTS
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$ENV{LUA_DIR}
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PATH_SUFFIXES ${_POSSIBLE_LUA_INCLUDE}
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PATHS
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local
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/usr
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/sw # Fink
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/opt/local # DarwinPorts
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/opt/csw # Blastwave
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/opt
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)
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# Find the lua library
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FIND_LIBRARY(LUA_LIBRARY
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NAMES ${_POSSIBLE_LUA_LIBRARY}
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HINTS
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$ENV{LUA_DIR}
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PATH_SUFFIXES lib64 lib
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PATHS
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local
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/usr
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/sw
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/opt/local
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/opt/csw
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/opt
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)
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IF(LUA_LIBRARY)
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# include the math library for Unix
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IF(UNIX AND NOT APPLE)
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FIND_LIBRARY(LUA_MATH_LIBRARY m)
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SET( LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}" CACHE STRING "Lua Libraries")
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# For Windows and Mac, don't need to explicitly include the math library
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ELSE(UNIX AND NOT APPLE)
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SET( LUA_LIBRARIES "${LUA_LIBRARY}" CACHE STRING "Lua Libraries")
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ENDIF(UNIX AND NOT APPLE)
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ENDIF(LUA_LIBRARY)
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# Determine Lua version
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IF(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
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FILE(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua .+\"")
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STRING(REGEX REPLACE "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([^\"]+)\".*" "\\1" LUA_VERSION_STRING "${lua_version_str}")
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UNSET(lua_version_str)
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ENDIF()
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INCLUDE(FindPackageHandleStandardArgs)
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# handle the QUIETLY and REQUIRED arguments and set LUA_FOUND to TRUE if
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# all listed variables are TRUE
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Lua
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REQUIRED_VARS LUA_LIBRARIES LUA_INCLUDE_DIR
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VERSION_VAR LUA_VERSION_STRING)
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MARK_AS_ADVANCED(LUA_INCLUDE_DIR LUA_LIBRARIES LUA_LIBRARY LUA_MATH_LIBRARY LUA_EXECUTABLE)
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