cmake option to use luajit

AUTHORS

@@ -1,3 +1,3 @@
 edubart - leader developer (project creator) <edub4rt@gmail.com>
-andrefaramir - scripting (implemented battle, hotkeys, chat, ..) <andre_faramir@hotmail.com>
+andrefaramir - scripting (implemented a lot of modules like battle, hotkeys, npctrade, chat) <andre_faramir@hotmail.com>
-baxnie - inactive (implemented first game functionality) <henrique_santiago93@hotmail.com>
+baxnie - implemented first game functionality <henrique_santiago93@hotmail.com>

src/framework/CMakeLists.txt

@@ -10,6 +10,8 @@ OPTION(USE_OPENGL_ES2 "Use OpenGL ES 2.0 (for mobiles devices)" OFF)
 OPTION(CRASH_HANDLER "Generate crash reports" ON)
 SET(BUILD_REVISION "custom" CACHE "Git revision string (intended for releases)" STRING)
 
+OPTION(LUAJIT "Use lua jit" OFF)
+
 # set debug as default build type
 IF(NOT CMAKE_BUILD_TYPE)
     SET(CMAKE_BUILD_TYPE RelWithDebInfo)
@@ -36,7 +38,12 @@ ELSE()
     SET(OPENGL_LIBRARIES ${GLEW_LIBRARY} ${OPENGL_LIBRARIES})
 ENDIF()
 
-FIND_PACKAGE(Lua REQUIRED)
+IF(LUAJIT)
+    FIND_PACKAGE(LuaJIT REQUIRED)
+ELSE()
+    FIND_PACKAGE(Lua REQUIRED)
+ENDIF()
+
 FIND_PACKAGE(PhysFS REQUIRED)
 FIND_PACKAGE(GMP REQUIRED)
 FIND_PACKAGE(ZLIB REQUIRED)

src/framework/cmake/FindLuaJIT.cmake

@@ -0,0 +1,22 @@
+# Try to find the lua librairy
+#  LUA_FOUND - system has lua
+#  LUA_INCLUDE_DIR - the lua include directory
+#  LUA_LIBRARY - the lua library
+#  LUA_LIBRARIES - the lua library and it's dependencies
+
+FIND_PATH(LUA_INCLUDE_DIR NAMES lua.h PATH_SUFFIXES luajit-2.0)
+FIND_LIBRARY(LUA_LIBRARY NAMES libluajit51.a libluajit5.1.a libluajit-5.1.a libluajit.a luajit51 luajit5.1 luajit-5.1 luajit)
+
+IF(LUA_LIBRARY)
+  IF(UNIX AND NOT APPLE)
+    FIND_LIBRARY(LUA_MATH_LIBRARY m)
+    SET(LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}")
+  ELSE(UNIX AND NOT APPLE)
+    SET(LUA_LIBRARIES "${LUA_LIBRARY}")
+  ENDIF(UNIX AND NOT APPLE)
+ENDIF(LUA_LIBRARY)
+
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LuaJIT DEFAULT_MSG LUA_LIBRARIES LUA_INCLUDE_DIR)
+MARK_AS_ADVANCED(LUA_INCLUDE_DIR LUA_LIBRARIES LUA_LIBRARY LUA_MATH_LIBRARY)
+

src/framework/thirdparty/lbitlib-5.2.0-backport4.cpp

@@ -43,6 +43,9 @@ extern "C" {
 @@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned.
 ** It must have at least 32 bits.
 */
+#ifndef LUAI_INT32
+#define LUAI_INT32 int
+#endif
 #define LUA_UNSIGNED    unsigned LUAI_INT32
 
 #if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI)    /* { */
@@ -154,8 +157,8 @@ static lua_Unsigned luaL_checkunsigned (lua_State *L, int arg) {
 /* ----- Lua 5.2 luaL_newlib() compatibility: ----- */
 
 #define LUAMOD_API  LUALIB_API
-#define LUA_BITLIBNAME "bit32"
+#define LUA_BIT32LIBNAME "bit32"
-#define luaL_newlib(x, y) luaL_register(x, LUA_BITLIBNAME, y)
+#define luaL_newlib(x, y) luaL_register(x, LUA_BIT32LIBNAME, y)
 
 /* ----- avoid a 'symbol redefined' warning below ----- */