Luajit Compiling lua-lzma on windows mingw64

so i have a project where i need lzma decompression so i googled and found this project https://github.com/rainfiel/lua-lzma
After some trick I managed to compile it to find it was written for lua 5.2 so I changed some lines to fix this. In the file llzma.c, I changed the line luaL_newlib(L, l);

to luaL_register(L, "lzma", l);

, commented out luaL_checkversion(L);

and changed size_t len = lua_rawlen(L, 1);

to size_t len = lua_objlen(L, 1);

, etc.

My makefile looks something like this.

all: lzma.dll

lzma.dll: LzFind.o LzAlloc.o LzmaDec.o LzmaEnc.o LzmaLib.o llzma.o
    gcc -O -shared -o lzma.dll llzma.o LzmaLib.o LzmaEnc.o LzmaDec.o 
LzFind.o LzAlloc.o -L"..\bin" -llua51

LzFind.o: LzFind.c
    gcc -O2 -c LzFind.c 
LzAlloc.o: LzAlloc.c
    gcc -O2 -c LzAlloc.c 
LzmaDec.o: LzmaDec.c
        gcc -O2 -c LzmaDec.c 
LzmaEnc.o: LzmaEnc.c
    gcc -O2 -c LzmaEnc.c 
LzmaLib.o: LzmaLib.c    
    gcc -O2 -c LzmaLib.c 
llzma.o:   llzma.c
    gcc -I..\luajit\src\src -O2 -c -o llzma.o llzma.c

      

        
        
        
      

    

I got it to compile, but when I try to download it I should get this message:

> require 'lzma'
error loading module 'lzma' from file '.\lzma.dll':
    The specified procedure could not be found.

stack traceback:
    [C]: at 0x66dd6c40
    [C]: in function 'require'
    stdin:1: in main chunk
    [C]: at 0x00401f80

      

        
        
        
      

    

I did some more searches and came across this http://lua-users.org/lists/lua-l/2013-03/msg00363.html
However, when I did the dump, the luaopen_lzma function was there, so it looks like it was exported. I'm totally here. I don't have much experience with binary libraries and the like, so this worries me. I would like to be able to compile and use this library rather than writing myself. Does anyone know what I am doing wrong?