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Diffstat (limited to 'share/cmake-3.10/Modules/FindLua.cmake')
| -rw-r--r-- | share/cmake-3.10/Modules/FindLua.cmake | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/share/cmake-3.10/Modules/FindLua.cmake b/share/cmake-3.10/Modules/FindLua.cmake new file mode 100644 index 0000000..b59b9b3 --- /dev/null +++ b/share/cmake-3.10/Modules/FindLua.cmake @@ -0,0 +1,197 @@ +# 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}.${CMAKE_MATCH_2} + ) + endforeach () + + set(_lua_include_subdirs "${_lua_include_subdirs}" 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}/${subdir}") + break() + endif () + endif () + endforeach () +endif () +unset(_lua_include_subdirs) +unset(_lua_append_versions) + +if (LUA_VERSION_STRING) + set(_lua_library_names + lua${LUA_VERSION_MAJOR}${LUA_VERSION_MINOR} + lua${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR} + lua-${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR} + lua.${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR} + ) +endif () + +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}") + + # include dl library for statically-linked Lua library + get_filename_component(LUA_LIB_EXT ${LUA_LIBRARY} EXT) + if(LUA_LIB_EXT STREQUAL CMAKE_STATIC_LIBRARY_SUFFIX) + list(APPEND LUA_LIBRARIES ${CMAKE_DL_LIBS}) + endif() + + # For Windows and Mac, don't need to explicitly include the math library + else () + set(LUA_LIBRARIES "${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) |