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# Locate Lua library
# This module defines
# LUA51_FOUND, if false, do not try to link to Lua
# LUA_LIBRARIES
# LUA_INCLUDE_DIR, where to find lua.h
# LUA_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
#
# 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.
#
# 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.)
find_path(LUA_INCLUDE_DIR lua.h
HINTS
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
)
find_library(LUA_LIBRARY
NAMES lua51 lua5.1 lua-5.1 lua
HINTS
ENV LUA_DIR
PATH_SUFFIXES lib
PATHS
~/Library/Frameworks
/Library/Frameworks
/sw
/opt/local
/opt/csw
/opt
)
if(LUA_LIBRARY)
# include the math library for Unix
if(UNIX AND NOT APPLE)
find_library(LUA_MATH_LIBRARY m)
set( LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}" CACHE STRING "Lua Libraries")
# For Windows and Mac, don't need to explicitly include the math library
else()
set( LUA_LIBRARIES "${LUA_LIBRARY}" CACHE STRING "Lua Libraries")
endif()
endif()
if(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua .+\"")
string(REGEX REPLACE "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([^\"]+)\".*" "\\1" LUA_VERSION_STRING "${lua_version_str}")
unset(lua_version_str)
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(Lua51
REQUIRED_VARS LUA_LIBRARIES LUA_INCLUDE_DIR
VERSION_VAR LUA_VERSION_STRING)
mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARIES LUA_LIBRARY LUA_MATH_LIBRARY)
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