189 lines
6.8 KiB
CMake
189 lines
6.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#.rst:
|
|
# FindLua
|
|
# -------
|
|
#
|
|
#
|
|
#
|
|
# 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/
|
|
|
|
unset(_lua_include_subdirs)
|
|
unset(_lua_library_names)
|
|
unset(_lua_append_versions)
|
|
|
|
# this is a function only to have all the variables inside go away automatically
|
|
function(_lua_set_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 ${LUA_VERSIONS5})
|
|
endif ()
|
|
|
|
list(APPEND _lua_include_subdirs "include/lua" "include")
|
|
|
|
foreach (ver IN LISTS _lua_append_versions)
|
|
string(REGEX MATCH "^([0-9]+)\\.([0-9]+)$" _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}.${CMAKE_MATCH_2}
|
|
lua.${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
|
|
)
|
|
endforeach ()
|
|
|
|
set(_lua_include_subdirs "${_lua_include_subdirs}" PARENT_SCOPE)
|
|
set(_lua_library_names "${_lua_library_names}" PARENT_SCOPE)
|
|
set(_lua_append_versions "${_lua_append_versions}" PARENT_SCOPE)
|
|
endfunction(_lua_set_version_vars)
|
|
|
|
function(_lua_check_header_version _hdr_file)
|
|
# 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 "${_hdr_file}" lua_version_strings
|
|
REGEX "^#define[ \t]+LUA_(RELEASE[ \t]+\"Lua [0-9]|VERSION([ \t]+\"Lua [0-9]|_[MR])).*")
|
|
|
|
string(REGEX REPLACE ".*;#define[ \t]+LUA_VERSION_MAJOR[ \t]+\"([0-9])\"[ \t]*;.*" "\\1" LUA_VERSION_MAJOR ";${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 ()
|
|
foreach (ver IN LISTS _lua_append_versions)
|
|
if (ver STREQUAL "${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}")
|
|
set(LUA_VERSION_MAJOR ${LUA_VERSION_MAJOR} PARENT_SCOPE)
|
|
set(LUA_VERSION_MINOR ${LUA_VERSION_MINOR} PARENT_SCOPE)
|
|
set(LUA_VERSION_PATCH ${LUA_VERSION_PATCH} PARENT_SCOPE)
|
|
set(LUA_VERSION_STRING ${LUA_VERSION_STRING} PARENT_SCOPE)
|
|
return()
|
|
endif ()
|
|
endforeach ()
|
|
endfunction(_lua_check_header_version)
|
|
|
|
_lua_set_version_vars()
|
|
|
|
if (LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
|
|
_lua_check_header_version("${LUA_INCLUDE_DIR}/lua.h")
|
|
endif ()
|
|
|
|
if (NOT LUA_VERSION_STRING)
|
|
foreach (subdir IN LISTS _lua_include_subdirs)
|
|
unset(LUA_INCLUDE_PREFIX CACHE)
|
|
find_path(LUA_INCLUDE_PREFIX ${subdir}/lua.h
|
|
HINTS
|
|
ENV LUA_DIR
|
|
PATHS
|
|
~/Library/Frameworks
|
|
/Library/Frameworks
|
|
/sw # Fink
|
|
/opt/local # DarwinPorts
|
|
/opt/csw # Blastwave
|
|
/opt
|
|
)
|
|
if (LUA_INCLUDE_PREFIX)
|
|
_lua_check_header_version("${LUA_INCLUDE_PREFIX}/${subdir}/lua.h")
|
|
if (LUA_VERSION_STRING)
|
|
set(LUA_INCLUDE_DIR "${LUA_INCLUDE_PREFIX}/${subdir}")
|
|
break()
|
|
endif ()
|
|
endif ()
|
|
endforeach ()
|
|
endif ()
|
|
unset(_lua_include_subdirs)
|
|
unset(_lua_append_versions)
|
|
|
|
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 ()
|
|
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
|
# 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)
|