Re: help needed in using lua 5.0

[Eero Pajarre <epajarre@...>]

sohyl siddiqui wrote:

> i need help on how to use lua 5.0 with vc++ 6 i was previuosly using lua 
> 4.0 and it was working fine till some problems arised so i decided to 
> try using 5.0 ...... the compiler gives following linker errors :
>  
> Compiling...
> HCScript.cpp
> Linking...
> LINK : warning LNK4098: defaultlib "LIBCMT" conflicts with use of other 
> libs; use /NODEFAULTLIB:library

You should be able to fix this by using the same options when you compile
the application as when the library is compiled.

> HCScript.obj : error LNK2001: unresolved external symbol _lua_setglobal

Are you using the correct lua.h? in Lua 5.0 the lua_setglobal is a
macro in lua.h. (It was a function definition in lua.h, and this sound like you
had used the Lua4 .h file)

Alternatively: did you recompile HCScript.c after you switched lua versions?

> HCScript.obj : error LNK2001: unresolved external symbol _lua_mathlibopen
> HCScript.obj : error LNK2001: unresolved external symbol _lua_strlibopen
> HCScript.obj : error LNK2001: unresolved external symbol _lua_iolibopen
> HCScript.obj : error LNK2001: unresolved external symbol _lua_baselibopen
> Error executing link.exe.

Names of these functions have been changed to something like luaopen_math
in lua5. Check the functions in the src/lib directory.

>  
> do i need to change code generation settings .... previously i was using 
> multithreaded dll ..... i am using the binares provided in 
> luabuild-5.0.gz that i got from the lua site .....

My personal suggestion is: don't use the binaries,, compile the Lua from the
sources yourself. You don't even need to make a .lib from it, you can add
the source files directly to you application build. (They compile fast).


		Eero