+++ /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)
-include(./FindLua)
-find_program(HAVE_LUA_BIN NAMES lua)
-mark_as_advanced(HAVE_LUA_BIN)
+# Search for the Lua 5.3 include files and libraries
+#
+# Input variable:
+# LUA_HINT: path to Lua installation -- only needed for non-standard installs
+# Output variable:
+# HAVE_LUA : if Lua was found
+# LUA_LIBRARY : the path to the dynamic library
+# LUA_INCLUDE_DIR : where to find lua.h
+# LUA_VERSION_MAJOR: First part of the version (often, 5)
+# LUA_VERSION_MINOR: Second part of the version (3 when we have 5.3)
-message(STATUS "Looking for lua.h")
-if(LUA_INCLUDE_DIR)
- message(STATUS "Looking for lua.h - found")
-else()
- message(STATUS "Looking for lua.h - not found")
-endif()
+find_path(LUA_INCLUDE_DIR lua.h
+ HINTS
+ ENV LUA_HINT
+ PATH_SUFFIXES include/lua53 include/lua5.3 include/lua-5.3 include/lua include
+ PATHS
+ ~/Library/Frameworks
+ /Library/Frameworks
+ /sw # Fink
+ /opt/local # DarwinPorts
+ /opt/csw # Blastwave
+ /opt
+)
-if(HAVE_LUA_BIN)
- message(STATUS "Found Lua: ${HAVE_LUA_BIN}")
+find_library(LUA_LIBRARY
+ NAMES lua53 lua5.3 lua-5.3 lua
+ HINTS
+ ENV LUA_HINT
+ PATH_SUFFIXES lib
+ PATHS
+ ~/Library/Frameworks
+ /Library/Frameworks
+ /sw
+ /opt/local
+ /opt/csw
+ /opt
+)
+if (NOT LUA_LIBRARY)
+ message(FATAL_ERROR "Error: Lua library not found. Please install that package (and set LUA_HINT) or disable Lua.")
endif()
-
-set(LIB_LUA_NAME "")
-
-foreach(lib_path ${LUA_LIBRARIES})
- if(NOT LIB_LUA_NAME)
- string(REGEX MATCH "liblua.*$" LIB_LUA_NAME "${lib_path}")
- string(REPLACE ".${LIB_EXE}" "" LIB_LUA_NAME "${LIB_LUA_NAME}")
- string(REPLACE "lib" "" LIB_LUA_NAME "${LIB_LUA_NAME}")
- if(LIB_LUA_NAME)
- string(REPLACE "/lib${LIB_LUA_NAME}.${LIB_EXE}" "" LUA_LIBRARY_DIR ${lib_path})
- endif()
- endif()
-endforeach(lib_path ${LUA_LIBRARIES})
-
-message(STATUS "Looking for lib lua")
-if(LUA_LIBRARY_DIR)
- message(STATUS "Looking for lib lua - found")
- message(STATUS "Lua version: ${LUA_VERSION_STRING}")
- message(STATUS "Lib path : ${LUA_LIBRARY_DIR}")
-else()
- message(STATUS "Looking for lib lua - not found")
+if (NOT LUA_INCLUDE_DIR OR NOT EXISTS "${LUA_INCLUDE_DIR}/lua.h")
+ message(FATAL_ERROR "Error: Lua header file not found. Please install that package (and set LUA_HINT) or disable Lua.")
endif()
-if(LUA_FOUND)
- if(LUA_VERSION_MAJOR EQUAL 5 AND LUA_VERSION_MINOR EQUAL 3)
- set(HAVE_LUA 1)
- include_directories(${LUA_INCLUDE_DIR})
- link_directories(${LUA_LIBRARY_DIR})
- else()
- message(FATAL_ERROR "Error: Lua version 5.3 is required, but version ${LUA_VERSION_STRING} found instead.")
- endif()
+# Extract the version info out of the header file
+file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"[456]+\"")
+ string(REGEX REPLACE "^#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([^\"]+)\"" "\\1" LUA_VERSION_MAJOR "${lua_version_str}")
+file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_VERSION_MINOR[ \t]+\"[0123456789]+\"")
+ string(REGEX REPLACE "^#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([^\"]+)\"" "\\1" LUA_VERSION_MINOR "${lua_version_str}")
+unset(lua_version_str)
+
+# Check that we have a sufficient version of Lua
+if(LUA_VERSION_MAJOR EQUAL 5 AND LUA_VERSION_MINOR EQUAL 3)
+ set(HAVE_LUA 1)
+
+ include_directories(${LUA_INCLUDE_DIR})
else()
- message(FATAL_ERROR "Error: Lua version 5.3 is required, but Lua not found.")
+ message(FATAL_ERROR "Error: Lua version 5.3 is required, but version ${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR} found instead.")
endif()
+
+message(STATUS "Lua version: ${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}")
+message(STATUS "Lua library: ${LUA_LIBRARY}")
