无法链接一个最小化的Lua程序。

我有一个trivial的Lua程序，我从书Programming In Lua复制而来。

#include <stdio.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
int main (void)
{
    char buff[256];
    int error;
    lua_State *L = luaL_newstate(); /* opens Lua */
    luaL_openlibs(L); /* opens the standard libraries */
    while (fgets(buff, sizeof(buff), stdin) != NULL)
    {
        error = luaL_loadbuffer(L, buff, strlen(buff), "line") ||
        lua_pcall(L, 0, 0, 0);

        if (error)
        {
            fprintf(stderr, "%s", lua_tostring(L, -1));
            lua_pop(L, 1); /* pop error message from the stack */
        }
    }
    lua_close(L);
    return 0;
}

我的环境是cywin

我的makefile看起来像这样:

CC=gcc
INCLUDE='-I/home/xyz/c_drive/Program Files/Lua/5.1/include'
LINKFLAGS='-L/home/xyz/c_drive/Program Files/Lua/5.1/lib' -llua51

li.o:li.c
    $(CC) $(INCLUDE)   -c li.c

main:li.o
    $(CC)  -o main  $(LINKFLAGS) li.o

clean:
    rm *.o
    rm main

我的/home/xyz/c_drive/Program Files/Lua/5.1/lib目录包含lua5.1.dll、lua5.1.lib、lua51.dll和lua51.lib。

尝试构建我的主要目标时，我得到以下错误:

li.o:li.c:(.text+0x35): undefined reference to `_luaL_newstate'
li.o:li.c:(.text+0x49): undefined reference to `_luaL_openlibs'
li.o:li.c:(.text+0xaf): undefined reference to `_luaL_loadbuffer'
li.o:li.c:(.text+0xd9): undefined reference to `_lua_pcall'
li.o:li.c:(.text+0x120): undefined reference to `_lua_tolstring'
li.o:li.c:(.text+0x154): undefined reference to `_lua_settop'
li.o:li.c:(.text+0x167): undefined reference to `_lua_close'

这里有什么问题吗？