basic lua support

CMake_modules/FindLuaJIT.cmake

@@ -0,0 +1,81 @@
+# Locate Lua library
+# This module defines
+#  LUAJIT_FOUND, if false, do not try to link to Lua 
+#  LUAJIT_LIBRARIES
+#  LUAJIT_INCLUDE_DIR, where to find lua.h
+#  LUAJIT_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
+#
+# 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/
+
+#=============================================================================
+# Copyright 2007-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_path(LUAJIT_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(LUAJIT_LIBRARY
+	NAMES luajit luajit-5.1
+	HINTS
+	$ENV{LUA_DIR}
+	PATH_SUFFIXES lib64 lib
+	PATHS
+	~/Library/Frameworks
+	/Library/Frameworks
+	/sw
+	/opt/local
+	/opt/csw
+	/opt
+)
+
+if (LUAJIT_LIBRARY)
+	# include the math library for Unix
+	if (UNIX AND NOT APPLE)
+		find_library(LUAJIT_MATH_LIBRARY m)
+		set(LUAJIT_LIBRARIES "${LUAJIT_LIBRARY};${LUAJIT_MATH_LIBRARY}" CACHE STRING "Lua Libraries")
+	# For Windows and Mac, don't need to explicitly include the math library
+	else ()
+	  set(LUAJIT_LIBRARIES "${LUAJIT_LIBRARY}" CACHE STRING "Lua Libraries")
+	endif ()
+endif ()
+
+if(LUAJIT_INCLUDE_DIR AND EXISTS "${LUAJIT_INCLUDE_DIR}/lua.h")
+	file(STRINGS "${LUAJIT_INCLUDE_DIR}/lua.h" luajit_version_str REGEX "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua .+\"")
+
+	string(REGEX REPLACE "^#define[ \t]+LUA_RELEASE[ \t]+\"Lua ([^\"]+)\".*" "\\1" LUAJIT_VERSION_STRING "${luajit_version_str}")
+	unset(luajit_version_str)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LUAJIT_FOUND to TRUE if 
+# all listed variables are TRUE
+find_package_handle_standard_args(LuaJIT
+                                  REQUIRED_VARS LUAJIT_LIBRARIES LUAJIT_INCLUDE_DIR
+                                  VERSION_VAR LUAJIT_VERSION_STRING)
+
+mark_as_advanced(LUAJIT_INCLUDE_DIR LUAJIT_LIBRARIES LUAJIT_LIBRARY LUAJIT_MATH_LIBRARY)
+