cmake/FindLuaJIT.cmake

   1 #.rst:
   2 # FindLuaJIT
   3 # ----------
   4 #
   5 # Find luajit include dirs and libraries.
   6 #
   7 # Optional COMPONENTS
   8 # ^^^^^^^^^^^^^^^^^^^
   9 #
  10 # ``luajit``
  11 #
  12 # Imported Targets
  13 # ^^^^^^^^^^^^^^^^
  14 #
  15 # This module defines the following :ref:`Imported Targets <Imported Targets>`:
  16 #
  17 # ``luajit``
  18 #
  19 # Result Variables
  20 # ^^^^^^^^^^^^^^^^
  21 #
  22 # This module defines the following variables:
  23 #
  24 # ``LUAJIT_FOUND``
  25 #
  26 # ``LUAJIT_INCLUDE_DIR``
  27 #
  28 # ``LUAJIT_LIBRARIES``
  29 #
  30 # ``LUAJIT_VERSION``
  31 #
  32 # ``LUAJIT_VERSION_MAJOR``
  33 #
  34 # ``LUAJIT_VERSION_MINOR``
  35 #
  36 # ``LUAJIT_VERSION_PATCH``
  37 #
  38 # ``LuaJIT_luajit_FOUND``
  39 #
  40 # ``LUAJIT_EXECUTABLE``
  41 #
  42 # Cache variables
  43 # ^^^^^^^^^^^^^^^
  44 #
  45 # Search results are saved persistently in CMake cache entries:
  46 #
  47 # ``LUAJIT_INCLUDE_DIR``
  48 #
  49 # ``LUAJIT_LIBRARY``
  50 #
  51 # ``LUA_MATH_LIBRARY``
  52 #
  53 # ``LUAJIT_EXECUTABLE``
  54 #
  55 include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
  56 list(APPEND LUAJIT_REQUIRED_VARS LUAJIT_LIBRARIES LUAJIT_INCLUDE_DIR)
  57
  58 foreach(VERSION ${LuaJIT_FIND_VERSION} 2.1 2.0)
  59   string(REGEX MATCH "^([0-9]+)\\.([0-9]+)" VERSION "${VERSION}")
  60   find_path(LUAJIT_INCLUDE_DIR luajit.h PATH_SUFFIXES include
  61     include/luajit${CMAKE_MATCH_1}${CMAKE_MATCH_2}
  62     include/luajit${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
  63     include/luajit-${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
  64   )
  65   if(LUAJIT_INCLUDE_DIR)
  66     break()
  67   endif()
  68 endforeach()
  69 mark_as_advanced(LUAJIT_INCLUDE_DIR)
  70
  71 if(EXISTS "${LUAJIT_INCLUDE_DIR}/luajit.h")
  72   file(STRINGS ${LUAJIT_INCLUDE_DIR}/luajit.h LUAJIT_VERSION REGEX "^#define[ \t]+LUAJIT_VERSION[ \t]+.*")
  73   string(REGEX REPLACE ".*LUAJIT_VERSION[^0-9]+([^\"]+).*" "\\1" LUAJIT_VERSION ${LUAJIT_VERSION})
  74   string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUAJIT_VERSION_PATCH "${LUAJIT_VERSION}")
  75   string(REGEX REPLACE "^[0-9]+\\.([0-9]).*" "\\1" LUAJIT_VERSION_MINOR "${LUAJIT_VERSION}")
  76   string(REGEX REPLACE "^([0-9]).*" "\\1" LUAJIT_VERSION_MAJOR "${LUAJIT_VERSION}")
  77 endif()
  78
  79 if(EXISTS "${LUAJIT_INCLUDE_DIR}/lua.h")
  80   file(STRINGS ${LUAJIT_INCLUDE_DIR}/lua.h VERSION REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*")
  81   string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MAJOR ";${VERSION};")
  82   if(LUA_VERSION_MAJOR MATCHES "^[0-9]+$")
  83     string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MINOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MINOR ";${VERSION};")
  84     string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_RELEASE[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_PATCH ";${VERSION};")
  85     set(LUA_VERSION "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}.${LUA_VERSION_PATCH}")
  86   else()
  87     string(REGEX REPLACE ".*;#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION ";${VERSION};")
  88     if(NOT LUA_VERSION MATCHES "^[0-9.]+$")
  89       string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION[ \t]+\"Lua ([0-9.]+)\"[ \t]*;.*" "\\1" LUA_VERSION ";${VERSION};")
  90     endif()
  91     string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_PATCH "${LUA_VERSION}")
  92     string(REGEX REPLACE "^[0-9]+\\.([0-9]).*" "\\1" LUA_VERSION_MINOR "${LUA_VERSION}")
  93     string(REGEX REPLACE "^([0-9]).*" "\\1" LUA_VERSION_MAJOR "${LUA_VERSION}")
  94   endif()
  95 endif()
  96
  97 list(FIND LuaJIT_FIND_COMPONENTS "luajit" index)
  98 if(${index} GREATER -1)
  99   find_program(LUAJIT_EXECUTABLE NAMES luajit-${LUAJIT_VERSION} luajit)
 100   mark_as_advanced(LUAJIT_EXECUTABLE)
 101 endif()
 102 if(LuaJIT_FIND_REQUIRED_luajit)
 103   list(APPEND LUAJIT_REQUIRED_VARS LUAJIT_EXECUTABLE)
 104 endif()
 105 if(EXISTS "${LUAJIT_EXECUTABLE}")
 106   set(LuaJIT_luajit_FOUND 1)
 107 endif()
 108 set(index)
 109
 110 if(NOT LUAJIT_VERSION AND EXISTS "${LUAJIT_EXECUTABLE}")
 111   get_filename_component(LUAJIT_DIR "${LUAJIT_EXECUTABLE}" DIRECTORY)
 112   get_filename_component(LUAJIT_DIR "${LUAJIT_DIR}" DIRECTORY)
 113   execute_process(COMMAND ${LUAJIT_EXECUTABLE} -v OUTPUT_VARIABLE LUAJIT_VERSION)
 114   find_path(LUAJIT_INCLUDE_DIR luajit.h HINTS ${LUAJIT_DIR} PATH_SUFFIXES include)
 115   string(REGEX REPLACE "LuaJIT[ ]+([^\n ]+).*" "\\1" LUAJIT_VERSION "${LUAJIT_VERSION}")
 116   string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUAJIT_VERSION_PATCH "${LUAJIT_VERSION}")
 117   string(REGEX REPLACE "^[0-9]+\\.([0-9]).*" "\\1" LUAJIT_VERSION_MINOR "${LUAJIT_VERSION}")
 118   string(REGEX REPLACE "^([0-9]).*" "\\1" LUAJIT_VERSION_MAJOR "${LUAJIT_VERSION}")
 119 endif()
 120
 121 find_library(LUAJIT_LIBRARY NAMES_PER_DIR NAMES luajit-5.1 lua51 lua5.1 lua-5.1)
 122 mark_as_advanced(LUAJIT_LIBRARY)
 123 if(EXISTS "${LUAJIT_LIBRARY}")
 124   list(APPEND LUAJIT_LIBRARIES ${LUAJIT_LIBRARY})
 125   if(UNIX AND NOT APPLE AND NOT BEOS)
 126     find_library(LUA_MATH_LIBRARY m)
 127     mark_as_advanced(LUA_MATH_LIBRARY)
 128     if(NOT EXISTS "${LUA_MATH_LIBRARY}")
 129       list(APPEND LUAJIT_LIBRARIES m)
 130     else()
 131       list(APPEND LUAJIT_LIBRARIES ${LUA_MATH_LIBRARY})
 132     endif()
 133     get_filename_component(ext ${LUAJIT_LIBRARY} EXT)
 134     if(CMAKE_STATIC_LIBRARY_SUFFIX STREQUAL ext)
 135       list(APPEND LUAJIT_LIBRARIES ${CMAKE_DL_LIBS})
 136     endif()
 137     set(ext)
 138   endif()
 139 endif()
 140
 141 find_package_handle_standard_args(LuaJIT
 142   FOUND_VAR
 143     LUAJIT_FOUND
 144   REQUIRED_VARS
 145     ${LUAJIT_REQUIRED_VARS}
 146   VERSION_VAR
 147     LUAJIT_VERSION
 148   HANDLE_COMPONENTS
 149 )
 150
 151 if(LUAJIT_FOUND)
 152   if(NOT TARGET luajit AND EXISTS "${LUAJIT_LIBRARY}")
 153     add_library(luajit UNKNOWN IMPORTED)
 154     set_target_properties(luajit PROPERTIES
 155       INTERFACE_INCLUDE_DIRECTORIES "${LUAJIT_INCLUDE_DIR}"
 156       IMPORTED_LINK_INTERFACE_LANGUAGES C
 157       IMPORTED_LOCATION "${LUAJIT_LIBRARY}"
 158     )
 159     set(libraries ${LUAJIT_LIBRARIES})
 160     list(REMOVE_ITEM libraries ${LUAJIT_LIBRARY})
 161     set_property(TARGET luajit APPEND PROPERTY
 162       INTERFACE_LINK_LIBRARIES ${libraries}
 163     )
 164     set(libraries)
 165   endif()
 166 endif()