# # ORXONOX - the hottest 3D action shooter ever to exist # > www.orxonox.net < # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # # # Author: # Reto Grieder # Description: # Finds either Lua 5.0 or Lua 5.1 on the system. The script regards the # VERSION, EXACT, REQUIRED and QUIET arguments. A note about the EXACT # argument: EXACT 5 will match all Lua 5 versions. # When the search was successful, the following variables are set: # LUA_INCLUDE_DIR, LUA_LIBRARIES, LUA_VERSION, LUA_FOUND # INCLUDE(CompareVersionStrings) INCLUDE(FindPackageHandleAdvancedArgs) INCLUDE(HandleLibraryTypes) # Macro that determines Lua version. Should work for versions 2.2 and above (current release: 5.1.4) FUNCTION(DETERMINE_LUA_VERSION _file _varname) IF(EXISTS ${_file}) FILE(STRINGS ${_file} _file_content REGEX "LUA_VERSION|LUA_RELEASE") ELSE() SET(${_varname} "0" PARENT_SCOPE) RETURN() ENDIF() STRING(REGEX REPLACE "^.*LUA_RELEASE[ \t]+\"Lua[ \t]+([.0-9]+)\".*$" "\\1" ${_varname} "${_file_content}") IF(${_varname} STREQUAL "${_file_content}") # At most version 5.1.0 STRING(REGEX REPLACE "^.*LUA_VERSION[ \t]+\"Lua[ \t]+([.0-9]+)\".*$" "\\1" ${_varname} "${_file_content}") IF(${_varname} STREQUAL "${_file_content}") MESSAGE(FATAL_ERROR "Could not determine Lua version which means this script has a bug") ENDIF() IF(${_varname} MATCHES "^[0-9]+\\.[0-9]+$") SET(${_varname} "${${_varname}}.0") # E.g. "3.2" is "3.2.0" actually ENDIF() ENDIF() SET(${_varname} "${${_varname}}" PARENT_SCOPE) ENDFUNCTION(DETERMINE_LUA_VERSION) # Find Lua 5.1 FIND_PATH(LUA_5.1_INCLUDE_DIR lua.h PATHS $ENV{LUA_DIR} PATH_SUFFIXES include/lua51 include/lua5.1 include/lua include ) IF(LUA_5.1_INCLUDE_DIR) DETERMINE_LUA_VERSION(${LUA_5.1_INCLUDE_DIR}/lua.h LUA_5.1_VERSION) COMPARE_VERSION_STRINGS("${LUA_5.1_VERSION}" "5.1" _version_compare TRUE) IF(NOT _version_compare EQUAL 0) # Incorrect version found, abort search SET(LUA_5.1_INCLUDE_DIR "LUA_5.1_INCLUDE_DIR-NOTFOUND" CACHE PATH "" FORCE) ELSE() FIND_LIBRARY(LUA_5.1_LIBRARY_OPTIMIZED NAMES lua51 lua5.1 lua PATHS $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) FIND_LIBRARY(LUA_5.1_LIBRARY_DEBUG NAMES lua51d lua51_d lua5.1d lua5.1_d luad lua_d lua51D lua51_D lua5.1D lua5.1_D luad lua_D PATHS $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) HANDLE_LIBRARY_TYPES(LUA_5.1) SET(LUA_5.1_LIBRARIES ${LUA_5.1_LIBRARY}) IF(LUA_5.1_LIBRARIES) SET(LUA_5.1_FOUND TRUE) ENDIF() ENDIF(NOT _version_compare EQUAL 0) ENDIF(LUA_5.1_INCLUDE_DIR) # Find Lua 5.0 FIND_PATH(LUA_5.0_INCLUDE_DIR lua.h PATHS $ENV{LUA_DIR} PATH_SUFFIXES include/lua50 include/lua5.0 include/lua5 include/lua include ) IF(LUA_5.0_INCLUDE_DIR) DETERMINE_LUA_VERSION(${LUA_5.0_INCLUDE_DIR}/lua.h LUA_5.0_VERSION) COMPARE_VERSION_STRINGS("${LUA_5.0_VERSION}" "5.0" _version_compare TRUE) IF(NOT _version_compare EQUAL 0) # Incorrect version found, abourt search SET(LUA_5.0_INCLUDE_DIR "LUA_5.0_INCLUDE_DIR-NOTFOUND" CACHE PATH "" FORCE) ELSE() FIND_LIBRARY(LUA_5.0_LUA_LIBRARY_OPTIMIZED NAMES lua50 lua5.0 lua5 lua PATHS $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) FIND_LIBRARY(LUA_5.0_LUA_LIBRARY_DEBUG NAMES lua50d lua50_d lua5.0d lua5.0_d lua5d lua5_d luad lua_d lua50D lua50_D lua5.0D lua5.0_D lua5d lua5_D luaD lua_D PATHS $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) HANDLE_LIBRARY_TYPES(LUA_5.0_LUA) # In an OS X framework, lualib is usually included as part of the framework # (like GLU in OpenGL.framework) IF(${LUA_5.0_LUA_LIBRARY} MATCHES "framework") SET(LUA_5.0_LIBRARIES ${LUA_5.0_LUA_LIBRARY}) ELSE() FIND_LIBRARY(LUA_5.0_LUALIB_LIBRARY_OPTIMIZED NAMES lualib50 lualib5.0 lualib5 lualib PATHS $ENV{LUALIB_DIR} $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) FIND_LIBRARY(LUA_5.0_LUALIB_LIBRARY_DEBUG NAMES lualib50d lualib50_d lualib5.0d lualib5.0_d lualib5d lualib5_d lualibd lualib_d lualib50D lualib50_D lualib5.0D lualib5.0_D lualib5D lualib5_D lualibD lualib_D PATHS $ENV{LUALIB_DIR} $ENV{LUA_DIR} PATH_SUFFIXES lib64 lib ) HANDLE_LIBRARY_TYPES(LUA_5.0_LUALIB) # Both libraries are required for Lua 5.0 to be found IF(LUA_5.0_LUA_LIBRARY AND LUA_5.0_LUALIB_LIBRARY) SET(LUA_5.0_LIBRARIES ${LUA_5.0_LUA_LIBRARY} ${LUA_5.0_LUALIB_LIBRARY}) ENDIF() ENDIF(${LUA_5.0_LUA_LIBRARY} MATCHES "framework") IF(LUA_5.0_LIBRARIES) SET(LUA_5.0_FOUND TRUE) ENDIF() ENDIF(NOT _version_compare EQUAL 0) ENDIF(LUA_5.0_INCLUDE_DIR) # Pick the right version IF(Lua_FIND_VERSION_EXACT AND NOT Lua_FIND_VERSION MATCHES "^[0-9]*$") STRING(REGEX REPLACE "^([0-9]+\\.[0-9]+)(\\..*)?$" "\\1" LUA_VERSION_SELECTION ${Lua_FIND_VERSION}) ELSE() IF(LUA_5.1_FOUND) # Prefer version 5.1 if found SET(LUA_VERSION_SELECTION "5.1") ELSEIF(LUA_5.0_FOUND) SET(LUA_VERSION_SELECTION "5.0") ENDIF() ENDIF() SET(LUA_INCLUDE_DIR "${LUA_${LUA_VERSION_SELECTION}_INCLUDE_DIR}") SET(LUA_LIBRARIES "${LUA_${LUA_VERSION_SELECTION}_LIBRARIES}") SET(LUA_VERSION_LONG "${LUA_${LUA_VERSION_SELECTION}_VERSION}") SET(LUA_VERSION "${LUA_VERSION_SELECTION}") FIND_PACKAGE_HANDLE_ADVANCED_ARGS(Lua DEFAULT_MSG "${LUA_VERSION_LONG}" LUA_LIBRARIES LUA_INCLUDE_DIR ) # Include the math library for Unix only IF(LUA_FOUND) IF(UNIX AND NOT APPLE) FIND_LIBRARY(UNIX_MATH_LIBRARY m) SET(LUA_LIBRARIES ${LUA_LIBRARIES} ${UNIX_MATH_LIBRARY}) ENDIF() ENDIF(LUA_FOUND) MARK_AS_ADVANCED( LUA_5.0_INCLUDE_DIR LUA_5.0_LUA_LIBRARY_OPTIMIZED LUA_5.0_LUA_LIBRARY_DEBUG LUA_5.0_LUALIB_LIBRARY_OPTIMIZED LUA_5.0_LUALIB_LIBRARY_DEBUG LUA_5.1_INCLUDE_DIR LUA_5.1_LIBRARY_OPTIMIZED LUA_5.1_LIBRARY_DEBUG UNIX_MATH_LIBRARY )