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cmake/FindLuaJIT.cmake

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+# Locate LuaJIT 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
+#  LUAJIT_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
+
+## Copied from default CMake FindLua51.cmake
+
+find_path(LUA_INCLUDE_DIR luajit.h
+  HINTS
+    ENV LUA_DIR
+  PATH_SUFFIXES include/luajit-2.0 include
+  PATHS
+  ~/Library/Frameworks
+  /Library/Frameworks
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt
+)
+
+find_library(LUA_LIBRARY
+  NAMES luajit-5.1
+  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)
+    find_library(LUA_MATH_LIBRARY m)
+    set( LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}" 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}/luajit.h")
+  file(STRINGS "${LUA_INCLUDE_DIR}/luajit.h" luajit_version_str REGEX "^#define[ \t]+LUAJIT_VERSION[ \t]+\"LuaJIT .+\"")
+
+  string(REGEX REPLACE "^#define[ \t]+LUAJIT_VERSION[ \t]+\"LuaJIT ([^\"]+)\".*" "\\1" LUAJIT_VERSION_STRING "${luajit_version_str}")
+  unset(luajit_version_str)
+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)
+