Use LuaJIT if available

CMakeLists.txt

@@ -70,10 +70,17 @@ target_link_libraries (osrm-routed ${ZLIB_LIBRARY})
 find_package( Threads REQUIRED )
 target_link_libraries (osrm-extract ${Threads_LIBRARY})
 
-find_package( Lua51 REQUIRED ) 
+find_package( LuaJIT ) 
-include_directories(${LUA_INCLUDE_DIR})
+IF(LUAJIT_LIBRARIES)
-target_link_libraries( osrm-extract ${LUA_LIBRARY} )
+	include_directories(${LUAJIT_INCLUDE_DIR})
-target_link_libraries( osrm-prepare ${LUA_LIBRARY} )
+	target_link_libraries( osrm-extract ${LUAJIT_LIBRARIES} )
+	target_link_libraries( osrm-prepare ${LUAJIT_LIBRARIES} )
+ELSE(LUAJIT_LIBRARIES)
+	find_package( Lua51 REQUIRED ) 
+	include_directories(${LUA_INCLUDE_DIR})
+	target_link_libraries( osrm-extract ${LUA_LIBRARY} )
+	target_link_libraries( osrm-prepare ${LUA_LIBRARY} )
+ENDIF(LUAJIT_LIBRARIES)
 
 find_package( LibXml2 REQUIRED )
 include_directories(${LIBXML2_INCLUDE_DIR})

cmake/FindLuaJIT.cmake

@@ -0,0 +1,86 @@
+# 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 
+#
+# 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 distributed this file outside of CMake, substitute the full
+#  License text for the above reference.)
+#
+# ################
+# 2010 - modified for cronkite to find luajit instead of lua, as it was before.
+#
+
+IF( NOT LUAJIT_FIND_QUIETLY )
+    MESSAGE(STATUS "Looking for LuaJIT...")
+ENDIF()
+
+FIND_PATH(LUAJIT_INCLUDE_DIR lua.h
+  HINTS
+  $ENV{LUAJIT_DIR}
+  PATH_SUFFIXES include/luajit-2.0 include/luajit2.0 include/luajit include
+  PATHS
+  ~/Library/Frameworks
+  /Library/Frameworks
+  /usr/local
+  /usr
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt
+)
+
+FIND_LIBRARY(LUAJIT_LIBRARY 
+  NAMES luajit-51 luajit-5.1 luajit
+  HINTS
+  $ENV{LUAJIT_DIR}
+  PATH_SUFFIXES lib64 lib
+  PATHS
+  ~/Library/Frameworks
+  /Library/Frameworks
+  /usr/local
+  /usr
+  /sw
+  /opt/local
+  /opt/csw
+  /opt
+)
+
+  # include the math library for Unix
+  IF(UNIX AND NOT APPLE)
+    FIND_LIBRARY(LUAJIT_MATH_LIBRARY m)
+    SET( LUAJIT_LIBRARIES "${LUAJIT_LIBRARY};${LUAJIT_MATH_LIBRARY}" CACHE STRING "Lua Libraries")
+  # For Windows and Mac, don't need to explicitly include the math library
+  ELSE(UNIX AND NOT APPLE)
+    SET( LUAJIT_LIBRARIES "${LUAJIT_LIBRARY}" CACHE STRING "Lua Libraries")
+  ENDIF(UNIX AND NOT APPLE)
+#ENDIF(LUAJIT_LIBRARY)
+
+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  DEFAULT_MSG  LUAJIT_LIBRARIES LUAJIT_INCLUDE_DIR)
+
+IF( NOT LUAJIT_FIND_QUIETLY )
+    IF( LUAJIT_FOUND )
+        MESSAGE(STATUS "Found LuaJIT: ${LUAJIT_LIBRARY}" )
+    ENDIF()
+ENDIF()
+MARK_AS_ADVANCED(LUAJIT_INCLUDE_DIR LUAJIT_LIBRARIES LUAJIT_LIBRARY LUAJIT_MATH_LIBRARY)