6 files changed, 321 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56dea1a34..a15ec5069 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,6 +64,10 @@ add_subdirectory(lib/expat/)
 add_subdirectory(lib/luaexpat/)
 add_subdirectory(lib/md5/)
 
+if (WIN32)
+	add_subdirectory(lib/luaproxy/)
+endif()
+
 
 # We use EXCLUDE_FROM_ALL so that only the explicit dependencies are used
 # (PolarSSL also has test and example programs in their CMakeLists.txt, we don't want those)
diff --git a/MCServer/lua5.1.dll b/MCServer/lua5.1.dll
deleted file mode 100644
index cca0bcb25..000000000
--- a/MCServer/lua5.1.dll
+++ /dev/null
diff --git a/lib/luaproxy/CMakeLists.txt b/lib/luaproxy/CMakeLists.txt
new file mode 100644
index 000000000..f115036e1
--- /dev/null
+++ b/lib/luaproxy/CMakeLists.txt
@@ -0,0 +1,58 @@
+
+# This project adds a Lua Proxy DLL on Windows
+# By an unfortunate choice in the popular LuaBinaries distribution, there are two names for the Lua DLL on Windows: lua51.dll and lua5.1.dll.
+# Some binary Lua packages are built for one, the others for the other. Messy!
+# In order to support both package flavors, we create a "proxy DLL":
+# Basically the lua5.1.dll has its PE Exports section manipulated so that it points each exported function to its lua51.dll implementation.
+# Effectively, this forwards all calls from lua5.1.dll to lua51.dll without any performance costs (the forwarding is done in the Windows PE loader on app start).
+
+# This project creates the proxy DLL by using a specially crafted .DEF file that is used to link the Proxy DLL.
+# Note that it has been tested only on MSVC, it might not work with other compilers.
+# The initial implementation was taken from http://lua-users.org/wiki/LuaProxyDllFour , but adapted to MSVC
+
+
+
+
+if (WIN32)
+
+	if (MSVC)
+		# Tell the linker to use the DEF file to generate the proxy:
+		set(CMAKE_EXE_LINKER_FLAGS_RELEASE    "${CMAKE_EXE_LINKER_FLAGS_RELEASE}    /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+		set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+		set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+		set(CMAKE_EXE_LINKER_FLAGS_DEBUG      "${CMAKE_EXE_LINKER_FLAGS_DEBUG}      /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+		set(CMAKE_SHARED_LINKER_FLAGS_DEBUG   "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}   /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+		set(CMAKE_MODULE_LINKER_FLAGS_DEBUG   "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}   /NOENTRY /DEF:lua5.1.def /MANIFEST:NO")
+	else()
+		message ("This code has not been tested on your compiler. Please report your success or failure in the forum.")
+	endif()
+
+	add_library(luaproxy SHARED "lua5.1.def" "Dummy.c")
+	set(LIBRARY_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/MCServer)
+	set_target_properties(luaproxy PROPERTIES
+		OUTPUT_NAME "lua5.1"
+	)
+	target_link_libraries(luaproxy lua)
+
+	# Output the executable into the $/MCServer folder, so that MCServer can find it:
+	set(EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/MCServer)
+	SET_TARGET_PROPERTIES(luaproxy PROPERTIES
+		ARCHIVE_OUTPUT_DIRECTORY_DEBUG          ${CMAKE_SOURCE_DIR}/MCServer
+		ARCHIVE_OUTPUT_DIRECTORY_RELEASE        ${CMAKE_SOURCE_DIR}/MCServer
+		ARCHIVE_OUTPUT_DIRECTORY_DEBUGPROFILE   ${CMAKE_SOURCE_DIR}/MCServer
+		ARCHIVE_OUTPUT_DIRECTORY_RELEASEPROFILE ${CMAKE_SOURCE_DIR}/MCServer
+		LIBRARY_OUTPUT_DIRECTORY_DEBUG          ${CMAKE_SOURCE_DIR}/MCServer
+		LIBRARY_OUTPUT_DIRECTORY_RELEASE        ${CMAKE_SOURCE_DIR}/MCServer
+		LIBRARY_OUTPUT_DIRECTORY_DEBUGPROFILE   ${CMAKE_SOURCE_DIR}/MCServer
+		LIBRARY_OUTPUT_DIRECTORY_RELEASEPROFILE ${CMAKE_SOURCE_DIR}/MCServer
+		RUNTIME_OUTPUT_DIRECTORY_DEBUG          ${CMAKE_SOURCE_DIR}/MCServer
+		RUNTIME_OUTPUT_DIRECTORY_RELEASE        ${CMAKE_SOURCE_DIR}/MCServer
+		RUNTIME_OUTPUT_DIRECTORY_DEBUGPROFILE   ${CMAKE_SOURCE_DIR}/MCServer
+		RUNTIME_OUTPUT_DIRECTORY_RELEASEPROFILE ${CMAKE_SOURCE_DIR}/MCServer
+	)
+
+else()
+
+	message (FATAL_ERROR "This project is needed only for Windows, modify your cmake file not to include it on Linux")
+
+endif()
diff --git a/lib/luaproxy/Dummy.c b/lib/luaproxy/Dummy.c
new file mode 100644
index 000000000..4018d8392
--- /dev/null
+++ b/lib/luaproxy/Dummy.c
@@ -0,0 +1,4 @@
+
+// Dummy.c
+
+// Because the MSVC compiler needs at least one C file to compile the project
diff --git a/lib/luaproxy/lua5.1.def b/lib/luaproxy/lua5.1.def
new file mode 100644
index 000000000..42986d22f
--- /dev/null
+++ b/lib/luaproxy/lua5.1.def
@@ -0,0 +1,115 @@
+EXPORTS
+	luaL_addlstring=lua51.luaL_addlstring
+	luaL_addstring=lua51.luaL_addstring
+	luaL_addvalue=lua51.luaL_addvalue
+	luaL_argerror=lua51.luaL_argerror
+	luaL_buffinit=lua51.luaL_buffinit
+	luaL_callmeta=lua51.luaL_callmeta
+	luaL_checkany=lua51.luaL_checkany
+	luaL_checkinteger=lua51.luaL_checkinteger
+	luaL_checklstring=lua51.luaL_checklstring
+	luaL_checknumber=lua51.luaL_checknumber
+	luaL_checkoption=lua51.luaL_checkoption
+	luaL_checkstack=lua51.luaL_checkstack
+	luaL_checktype=lua51.luaL_checktype
+	luaL_checkudata=lua51.luaL_checkudata
+	luaL_error=lua51.luaL_error
+	luaL_findtable=lua51.luaL_findtable
+	luaL_getmetafield=lua51.luaL_getmetafield
+	luaL_gsub=lua51.luaL_gsub
+	luaL_loadbuffer=lua51.luaL_loadbuffer
+	luaL_loadfile=lua51.luaL_loadfile
+	luaL_loadstring=lua51.luaL_loadstring
+	luaL_newmetatable=lua51.luaL_newmetatable
+	luaL_newstate=lua51.luaL_newstate
+	luaL_openlib=lua51.luaL_openlib
+	luaL_openlibs=lua51.luaL_openlibs
+	luaL_optinteger=lua51.luaL_optinteger
+	luaL_optlstring=lua51.luaL_optlstring
+	luaL_optnumber=lua51.luaL_optnumber
+	luaL_prepbuffer=lua51.luaL_prepbuffer
+	luaL_pushresult=lua51.luaL_pushresult
+	luaL_ref=lua51.luaL_ref
+	luaL_register=lua51.luaL_register
+	luaL_typerror=lua51.luaL_typerror
+	luaL_unref=lua51.luaL_unref
+	luaL_where=lua51.luaL_where
+	lua_atpanic=lua51.lua_atpanic
+	lua_call=lua51.lua_call
+	lua_checkstack=lua51.lua_checkstack
+	lua_close=lua51.lua_close
+	lua_concat=lua51.lua_concat
+	lua_cpcall=lua51.lua_cpcall
+	lua_createtable=lua51.lua_createtable
+	lua_dump=lua51.lua_dump
+	lua_equal=lua51.lua_equal
+	lua_error=lua51.lua_error
+	lua_gc=lua51.lua_gc
+	lua_getallocf=lua51.lua_getallocf
+	lua_getfenv=lua51.lua_getfenv
+	lua_getfield=lua51.lua_getfield
+	lua_gethook=lua51.lua_gethook
+	lua_gethookcount=lua51.lua_gethookcount
+	lua_gethookmask=lua51.lua_gethookmask
+	lua_getinfo=lua51.lua_getinfo
+	lua_getlocal=lua51.lua_getlocal
+	lua_getmetatable=lua51.lua_getmetatable
+	lua_getstack=lua51.lua_getstack
+	lua_gettable=lua51.lua_gettable
+	lua_gettop=lua51.lua_gettop
+	lua_getupvalue=lua51.lua_getupvalue
+	lua_insert=lua51.lua_insert
+	lua_iscfunction=lua51.lua_iscfunction
+	lua_isnumber=lua51.lua_isnumber
+	lua_isstring=lua51.lua_isstring
+	lua_isuserdata=lua51.lua_isuserdata
+	lua_lessthan=lua51.lua_lessthan
+	lua_load=lua51.lua_load
+	lua_newstate=lua51.lua_newstate
+	lua_newthread=lua51.lua_newthread
+	lua_newuserdata=lua51.lua_newuserdata
+	lua_next=lua51.lua_next
+	lua_objlen=lua51.lua_objlen
+	lua_pcall=lua51.lua_pcall
+	lua_pushboolean=lua51.lua_pushboolean
+	lua_pushcclosure=lua51.lua_pushcclosure
+	lua_pushfstring=lua51.lua_pushfstring
+	lua_pushinteger=lua51.lua_pushinteger
+	lua_pushlightuserdata=lua51.lua_pushlightuserdata
+	lua_pushlstring=lua51.lua_pushlstring
+	lua_pushnil=lua51.lua_pushnil
+	lua_pushnumber=lua51.lua_pushnumber
+	lua_pushstring=lua51.lua_pushstring
+	lua_pushthread=lua51.lua_pushthread
+	lua_pushvalue=lua51.lua_pushvalue
+	lua_pushvfstring=lua51.lua_pushvfstring
+	lua_rawequal=lua51.lua_rawequal
+	lua_rawget=lua51.lua_rawget
+	lua_rawgeti=lua51.lua_rawgeti
+	lua_rawset=lua51.lua_rawset
+	lua_rawseti=lua51.lua_rawseti
+	lua_remove=lua51.lua_remove
+	lua_replace=lua51.lua_replace
+	lua_resume=lua51.lua_resume
+	lua_setallocf=lua51.lua_setallocf
+	lua_setfenv=lua51.lua_setfenv
+	lua_setfield=lua51.lua_setfield
+	lua_sethook=lua51.lua_sethook
+	lua_setlocal=lua51.lua_setlocal
+	lua_setmetatable=lua51.lua_setmetatable
+	lua_settable=lua51.lua_settable
+	lua_settop=lua51.lua_settop
+	lua_setupvalue=lua51.lua_setupvalue
+	lua_status=lua51.lua_status
+	lua_toboolean=lua51.lua_toboolean
+	lua_tocfunction=lua51.lua_tocfunction
+	lua_tointeger=lua51.lua_tointeger
+	lua_tolstring=lua51.lua_tolstring
+	lua_tonumber=lua51.lua_tonumber
+	lua_topointer=lua51.lua_topointer
+	lua_tothread=lua51.lua_tothread
+	lua_touserdata=lua51.lua_touserdata
+	lua_type=lua51.lua_type
+	lua_typename=lua51.lua_typename
+	lua_xmove=lua51.lua_xmove
+	lua_yield=lua51.lua_yield
diff --git a/lib/luaproxy/lua5.1.lua b/lib/luaproxy/lua5.1.lua
new file mode 100644
index 000000000..bda84641a
--- /dev/null
+++ b/lib/luaproxy/lua5.1.lua
@@ -0,0 +1,140 @@
+
+-- lua5.1.lua
+-- Generates the lua5.1.def file from the list of Lua symbols below
+
+
+
+
+
+local symbols =
+{
+	"luaL_addlstring",
+	"luaL_addstring",
+	"luaL_addvalue",
+	"luaL_argerror",
+	"luaL_buffinit",
+	"luaL_callmeta",
+	"luaL_checkany",
+	"luaL_checkinteger",
+	"luaL_checklstring",
+	"luaL_checknumber",
+	"luaL_checkoption",
+	"luaL_checkstack",
+	"luaL_checktype",
+	"luaL_checkudata",
+	"luaL_error",
+	"luaL_findtable",
+	"luaL_getmetafield",
+	"luaL_gsub",
+	"luaL_loadbuffer",
+	"luaL_loadfile",
+	"luaL_loadstring",
+	"luaL_newmetatable",
+	"luaL_newstate",
+	"luaL_openlib",
+	"luaL_openlibs",
+	"luaL_optinteger",
+	"luaL_optlstring",
+	"luaL_optnumber",
+	"luaL_prepbuffer",
+	"luaL_pushresult",
+	"luaL_ref",
+	"luaL_register",
+	"luaL_typerror",
+	"luaL_unref",
+	"luaL_where",
+	"lua_atpanic",
+	"lua_call",
+	"lua_checkstack",
+	"lua_close",
+	"lua_concat",
+	"lua_cpcall",
+	"lua_createtable",
+	"lua_dump",
+	"lua_equal",
+	"lua_error",
+	"lua_gc",
+	"lua_getallocf",
+	"lua_getfenv",
+	"lua_getfield",
+	"lua_gethook",
+	"lua_gethookcount",
+	"lua_gethookmask",
+	"lua_getinfo",
+	"lua_getlocal",
+	"lua_getmetatable",
+	"lua_getstack",
+	"lua_gettable",
+	"lua_gettop",
+	"lua_getupvalue",
+	"lua_insert",
+	"lua_iscfunction",
+	"lua_isnumber",
+	"lua_isstring",
+	"lua_isuserdata",
+	"lua_lessthan",
+	"lua_load",
+	"lua_newstate",
+	"lua_newthread",
+	"lua_newuserdata",
+	"lua_next",
+	"lua_objlen",
+	"lua_pcall",
+	"lua_pushboolean",
+	"lua_pushcclosure",
+	"lua_pushfstring",
+	"lua_pushinteger",
+	"lua_pushlightuserdata",
+	"lua_pushlstring",
+	"lua_pushnil",
+	"lua_pushnumber",
+	"lua_pushstring",
+	"lua_pushthread",
+	"lua_pushvalue",
+	"lua_pushvfstring",
+	"lua_rawequal",
+	"lua_rawget",
+	"lua_rawgeti",
+	"lua_rawset",
+	"lua_rawseti",
+	"lua_remove",
+	"lua_replace",
+	"lua_resume",
+	"lua_setallocf",
+	"lua_setfenv",
+	"lua_setfield",
+	"lua_sethook",
+	"lua_setlocal",
+	"lua_setmetatable",
+	"lua_settable",
+	"lua_settop",
+	"lua_setupvalue",
+	"lua_status",
+	"lua_toboolean",
+	"lua_tocfunction",
+	"lua_tointeger",
+	"lua_tolstring",
+	"lua_tonumber",
+	"lua_topointer",
+	"lua_tothread",
+	"lua_touserdata",
+	"lua_type",
+	"lua_typename",
+	"lua_xmove",
+	"lua_yield",
+	-- "luaopen_base",
+	-- "luaopen_debug",
+	-- "luaopen_io",
+	-- "luaopen_math",
+	-- "luaopen_os",
+	-- "luaopen_package",
+	-- "luaopen_string",
+	-- "luaopen_table",
+}
+
+local def = io.open("lua5.1.def", "w")
+def:write("EXPORTS\n")
+for _,symbol in ipairs(symbols) do
+	def:write("\t" .. symbol .. "=lua51." .. symbol .. "\n")
+end
+def:close()
\ No newline at end of file