--- /dev/null
+# 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/
+
+#=============================================================================
+# CMake - Cross Platform Makefile Generator
+# Copyright 2000-2014 Kitware, Inc.
+# Copyright 2000-2011 Insight Software Consortium
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the names of Kitware, Inc., the Insight Software Consortium,
+# nor the names of their contributors may be used to endorse or promote
+# products derived from this software without specific prior written
+# permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#=============================================================================
+# See the copyright notice: http://www.cmake.org/licensing/
+
+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}.${CMAKE_MATCH_2}
+ )
+ endforeach ()
+
+ set(_lua_include_subdirs "${_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(FindPackageHandleStandardArgs)
+# 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)
