Re: [Wxlua-users] wxlua require problem

[Steve K. <ha...@ya...>]

OK now I got it working with ugly hack :-)


I undo all changes in loadlib.c and luaconf.h to its original. AND I manually edit the $WXLUAROOTDIR/modules/Makefile   and add 

-DLUA_USE_LINUX  to  CFLAGS  

and 

-Wl,-E -ldl -lreadline -lhistory -lncurses     to LDFLAGS

(Just copy from the lua Makefile  distribution the linux section)   

and everything works as expected :-)

I hope you guys find where it is wrong in the build system and fix it 'officially', I am sorry I do not know enough about it to help.

Cheers,



Steve Kieu <ha...@ya...> wrote: 
Ok now things even go more strange :-)

I will describe it so you guys may have clue to really fic the build problem as I do not know much about the bake file system etc...; 


-  For some reason the LUA_DL_DLOPEN never been defined in loadlib.c  Maybe it is the include problem? (I hit it once before though). In   loadlib.c  it has #include "lua.h"  and in lua.h it has included  luaconf.h  and it should define that  LUA_DL_DLOPEN because I explicitly define it in luaconf.h. But it is not. The include round  problem somewhere..

So I once again explicitly define  LUA_DL_DLOPEN in the file loadlib.c  and when compile it spits out unresolve symbol dlopen and dlsym so I have to manually edit the Make add the LDFLAG -ldl  so it compiles fine.

Now run wxlua-lua  and type  require'luasqlmysql' it no longer complain about dynamica lib not enabled ; but it give another  error:

undefined symbol: lua_pushvalue

and still no readline support. Of course the lua binary has it all.

To recap here is what I did to 'ugly fix' to enable dynamic lib loading:

* Expilitly define  LUA_DL_DLOPEN in loadlib.c 
* Explicitly define LUA_USE_LINUX in  luaconf.h
* Explicitly define  LDFLAG=-ldl  in $WXLUAROOTDIR/modules/Makefile 

The result is: dyanamic lib loading ok but unresolve symbol  lua_pushvalue

I will look into it furthur.......

cheers

John Labenski <jla...@gm...> wrote: On 5/8/06, Steve Kieu  wrote:
> I would like to use luasql with wxlua and failled. Do googling and saw some
> old thread about it but not sure how to resolve.
>
> If I do a cd  to the lua dir inside wxLua distribution  and make; a binary
> lua will be created in bin of wxLua. Using that binary ;
> require'luasqlmysql'  is fine.
>
> However if I use the binary  wxlua and type require'luasqlmysl'  in the
> editor window and run, the console prints the error:
>
> error loading module 'luasqlmysql' from file './luasqlmysql.so':
>         dynamic libraries not enabled; check your Lua installation
>
> how can I enable it in wxlua? which is a bit strange as the lua core built
> exactly the same produce lua baniry and works,

It is strange indeed, what platform are you using? I'm guessing Linux?

I just looked at the Makefiles in modules/lua and it looks like the
exact same object files are used for the lualib and the lua executable
so the code in loadlib.c should compile this #ifdefed code for both.

#if defined(LUA_DL_DLOPEN)
...

In the Makefile in apps/wxlua/src it uses this to compile lua, is  this
what you did when you compile lua yourself?

lua:
        @(cd $(WXLUA_DIR)/modules/lua && make linux)

Regards,
    John Labenski


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