FindLua51.cmake 2.56 KB
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# Locate Lua library
# This module defines
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#  LUA51_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
#  LUA_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
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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
# in locations other than lua/

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#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# 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.
#=============================================================================
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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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find_path(LUA_INCLUDE_DIR lua.h
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  HINTS
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  $ENV{LUA_DIR}
  PATH_SUFFIXES include/lua51 include/lua5.1 include/lua include
  PATHS
  ~/Library/Frameworks
  /Library/Frameworks
  /sw # Fink
  /opt/local # DarwinPorts
  /opt/csw # Blastwave
  /opt
)

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find_library(LUA_LIBRARY
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  NAMES lua51 lua5.1 lua-5.1 lua
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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
  ~/Library/Frameworks
  /Library/Frameworks
  /sw
  /opt/local
  /opt/csw
  /opt
)

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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)
    find_library(LUA_MATH_LIBRARY m)
    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()
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    set( LUA_LIBRARIES "${LUA_LIBRARY}" CACHE STRING "Lua Libraries")
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  endif()
endif()
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if(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
  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}")
  unset(lua_version_str)
endif()
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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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(Lua51
                                  REQUIRED_VARS LUA_LIBRARIES LUA_INCLUDE_DIR
                                  VERSION_VAR LUA_VERSION_STRING)
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mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARIES LUA_LIBRARY LUA_MATH_LIBRARY)
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