diff --git a/cmake/FindLuaJIT.cmake b/cmake/FindLuaJIT.cmake new file mode 100644 index 000000000..3cb7eedc3 --- /dev/null +++ b/cmake/FindLuaJIT.cmake @@ -0,0 +1,107 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + +#.rst: +# FindLuaJIT +# --------- +# +# +# +# Locate Lua library This module defines +# +# :: +# +# LUAJIT_FOUND, if false, do not try to link to Lua +# LUA_LIBRARIES +# LUA_INCLUDE_DIR, where to find lua.h +# LUA_VERSION_STRING, the version of Lua found (since CMake 2.8.8) +# LUA_VERSION_MAJOR - the major version of Lua +# LUA_VERSION_MINOR - the minor version of Lua +# LUA_VERSION_PATCH - the patch version of Lua +# LUAJIT_VERSION_STRING, the version of LuaJIT found (since CMake 2.8.8) +# LUAJIT_VERSION_MAJOR - the major version of LuaJIT +# LUAJIT_VERSION_MINOR - the minor version of LuaJIT +# LUAJIT_VERSION_PATCH - the patch version of LuaJIT +# +# +# +# Note that the expected include convention is +# +# :: +# +# #include "lua.h" +# +# and not +# +# :: +# +# #include +# +# This is because, the lua location is not standardized and may exist in +# locations other than lua/ + +find_path(LUA_INCLUDE_DIR luajit.h + HINTS + ENV LUA_DIR + PATH_SUFFIXES include/luajit-2.0 include/luajit-2.1 + PATHS + ~/Library/Frameworks + /Library/Frameworks + /sw # Fink + /opt/local # DarwinPorts + /opt/csw # Blastwave + /opt +) + +find_library(LUA_LIBRARY + NAMES luajit-5.1 lua51 + HINTS + ENV LUA_DIR + PATH_SUFFIXES lib + PATHS + ~/Library/Frameworks + /Library/Frameworks + /sw + /opt/local + /opt/csw + /opt +) + +if(LUA_LIBRARY) + # include the math library for Unix + if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU) + find_library(LUA_MATH_LIBRARY m) + set( LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY};${CMAKE_DL_LIBS}" CACHE STRING "Lua Libraries") + # For Windows and Mac, don't need to explicitly include the math library + else() + set( LUA_LIBRARIES "${LUA_LIBRARY}" CACHE STRING "Lua Libraries") + endif() +endif() + +if(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h") + file(STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua .+\"") + + string(REGEX REPLACE "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([^\"]+)\".*" "\\1" LUA_VERSION_STRING "${lua_version_str}") + unset(lua_version_str) + string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\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() + +if(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/luajit.h") + file(STRINGS "${LUA_INCLUDE_DIR}/luajit.h" lua_version_str REGEX "^#define[ \t]+LUAJIT_VERSION[ \t]+\".+\"") + string(REGEX REPLACE "^#define[ \t]+LUAJIT_VERSION[ \t]+\"LuaJIT ([0-9.]+).*\"" "\\1" LUAJIT_VERSION_STRING "${lua_version_str}") + unset(lua_version_str) + string(REGEX REPLACE "^([0-9]+)\\.[0-9.]*$" "\\1" LUAJIT_VERSION_MAJOR "${LUAJIT_VERSION_STRING}") + string(REGEX REPLACE "^[0-9]+\\.([0-9]+)[0-9.]*$" "\\1" LUAJIT_VERSION_MINOR "${LUAJIT_VERSION_STRING}") + string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]).*" "\\1" LUAJIT_VERSION_PATCH "${LUAJIT_VERSION_STRING}") +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(LuaJIT + REQUIRED_VARS LUA_LIBRARIES LUA_INCLUDE_DIR + VERSION_VAR LUAJIT_VERSION_STRING) + +mark_as_advanced(LUA_INCLUDE_DIR LUA_LIBRARIES LUA_LIBRARY LUA_MATH_LIBRARY)