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+#.rst:
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+# FindLua
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+# -------
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+#
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+#
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+#
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+# Locate Lua library This module defines
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+#
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+# ::
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+#
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+# LUA_FOUND - if false, do not try to link to Lua
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+# LUA_LIBRARIES - both lua and lualib
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+# LUA_INCLUDE_DIR - where to find lua.h
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+# LUA_VERSION_STRING - the version of Lua found
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+# LUA_VERSION_MAJOR - the major version of Lua
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+# LUA_VERSION_MINOR - the minor version of Lua
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+# LUA_VERSION_PATCH - the patch version of Lua
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+#
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+#
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+#
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+# Note that the expected include convention is
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+#
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+# ::
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+#
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+# #include "lua.h"
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+#
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+# and not
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+#
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+# ::
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+#
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+# #include <lua/lua.h>
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+#
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+# This is because, the lua location is not standardized and may exist in
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+# locations other than lua/
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+
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+#=============================================================================
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+# Copyright 2007-2009 Kitware, Inc.
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+# Copyright 2013 Rolf Eike Beer <[email protected]>
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+#
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+# Redistribution and use in source and binary forms, with or without
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+# modification, are permitted provided that the following conditions
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+# are met:
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+#
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+# * Redistributions of source code must retain the above copyright
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+# notice, this list of conditions and the following disclaimer.
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+#
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+# * Redistributions in binary form must reproduce the above copyright
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+# notice, this list of conditions and the following disclaimer in the
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+# documentation and/or other materials provided with the distribution.
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+#
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+# * Neither the names of Kitware, Inc., the Insight Software Consortium,
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+# nor the names of their contributors may be used to endorse or promote
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+# products derived from this software without specific prior written
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+# permission.
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+#
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+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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+# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+#===========================================================================
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+
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+unset(_lua_include_subdirs)
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+unset(_lua_library_names)
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+
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+# this is a function only to have all the variables inside go away automatically
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+function(set_lua_version_vars)
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+ set(LUA_VERSIONS5 5.3 5.2 5.1 5.0)
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+
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+ if (Lua_FIND_VERSION_EXACT)
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+ if (Lua_FIND_VERSION_COUNT GREATER 1)
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+ set(lua_append_versions ${Lua_FIND_VERSION_MAJOR} ${Lua_FIND_VERSION_MINOR})
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+ endif ()
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+ elseif (Lua_FIND_VERSION)
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+ # once there is a different major version supported this should become a loop
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+ if (NOT Lua_FIND_VERSION_MAJOR GREATER 5)
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+ if (Lua_FIND_VERSION_COUNT EQUAL 1)
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+ set(lua_append_versions ${LUA_VERSIONS5})
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+ else ()
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+ foreach (subver IN LISTS LUA_VERSIONS5)
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+ if (NOT subver VERSION_LESS ${Lua_FIND_VERSION})
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+ list(APPEND lua_append_versions ${subver})
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+ endif ()
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+ endforeach ()
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+ endif ()
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+ endif ()
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+ else ()
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+ # once there is a different major version supported this should become a loop
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+ set(lua_append_versions ${LUA_VERSIONS5})
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+ endif ()
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+
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+ foreach (ver IN LISTS lua_append_versions)
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+ string(REGEX MATCH "^([0-9]+)\\.([0-9]+)$" _ver "${ver}")
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+ list(APPEND _lua_include_subdirs
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+ include/lua${CMAKE_MATCH_1}${CMAKE_MATCH_2}
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+ include/lua${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
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+ include/lua-${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
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+ )
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+ list(APPEND _lua_library_names
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+ lua${CMAKE_MATCH_1}${CMAKE_MATCH_2}
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+ lua${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
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+ lua-${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
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+ )
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+ endforeach ()
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+
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+ set(_lua_include_subdirs "${_lua_include_subdirs}" PARENT_SCOPE)
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+ set(_lua_library_names "${_lua_library_names}" PARENT_SCOPE)
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+endfunction(set_lua_version_vars)
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+
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+set_lua_version_vars()
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+
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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 ${_lua_include_subdirs} include/lua include
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+ PATHS
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+ ~/Library/Frameworks
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+ /Library/Frameworks
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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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+unset(_lua_include_subdirs)
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+
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+find_library(LUA_LIBRARY
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+ NAMES ${_lua_library_names} lua
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+ HINTS
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+ ENV LUA_DIR
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+ PATH_SUFFIXES lib
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+ PATHS
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+ ~/Library/Frameworks
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+ /Library/Frameworks
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+ /sw
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+ /opt/local
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+ /opt/csw
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+ /opt
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+)
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+unset(_lua_library_names)
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+
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+if (LUA_LIBRARY)
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+ # include the math library for Unix
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+ if (UNIX AND NOT APPLE AND NOT BEOS)
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+ find_library(LUA_MATH_LIBRARY m)
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+ set(LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}")
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+ # For Windows and Mac, don't need to explicitly include the math library
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+ else ()
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+ set(LUA_LIBRARIES "${LUA_LIBRARY}")
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+ endif ()
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+endif ()
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+
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+if (LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
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+ # At least 5.[012] have different ways to express the version
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+ # so all of them need to be tested. Lua 5.2 defines LUA_VERSION
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+ # and LUA_RELEASE as joined by the C preprocessor, so avoid those.
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+ file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_strings
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+ REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*")
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+
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+ string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MAJOR ";${lua_version_strings};")
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+ if (LUA_VERSION_MAJOR MATCHES "^[0-9]+$")
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+ string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MINOR ";${lua_version_strings};")
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+ string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_PATCH ";${lua_version_strings};")
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+ set(LUA_VERSION_STRING "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}")
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+ else ()
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+ string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};")
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+ if (NOT LUA_VERSION_STRING MATCHES "^[0-9.]+$")
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+ string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION_STRING ";${lua_version_strings};")
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+ endif ()
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+ string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUA_VERSION_MAJOR "${LUA_VERSION_STRING}")
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+ string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUA_VERSION_MINOR "${LUA_VERSION_STRING}")
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+ string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_PATCH "${LUA_VERSION_STRING}")
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+ endif ()
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+
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+ unset(lua_version_strings)
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+endif()
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+
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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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+
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+mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARY LUA_MATH_LIBRARY)
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Gambini