wxlua-users

[Wxlua-users] wxlua require problem

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

Hi all,

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,

wxLua is the snapshot version wxLua_Snapshot_2006-05-07.tar.gz.

Thank you in advance. I will look into the source to see what I can find anyway.






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Re: [Wxlua-users] wxlua require problem

[John L. <jla...@gm...>]

On 5/8/06, Steve Kieu <ha...@ya...> wrote:
> I would like to use luasql with wxlua and failled. Do googling and saw so=
me
> 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 buil=
t
> 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

Re: [Wxlua-users] wxlua require problem

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

Hi,


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

Yes it Linux - slackware 10.2
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)

Yes, the actual command is:
cd /home/sk/wxLua/modules/lua && make linux
this produce binary lua and luac in /home/sk/wxLua/bin  and is fine .
I also see a #ifdef  LUA_USE_LINUX   in /home/sk/wxLua/modules/lua/include/luaconf.h and suspect that LUA_USE_LINUX not defined as if it is defined then LUA_USE_READLINE should be enabled and I can use it in lua binary. And It also enable LUA_USE_DLOPEN. Then I commented the #ifdef line and #endif so it always true. (safe as I know I am running Linux); Now the lua binary has readline support. Strange enough, the wxlua-lua   binary still not have the readline support and ofcourse still no go for loading DLOPEN.




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Re: [Wxlua-users] wxlua require problem

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

I just view the symbol of liblua.a and libwxlua_gtk2_lua-2.6.a
the liblua.a has the symbol  dlopen  but the other one *not*

I will look furthur ; where you guys link libwxlua_gtk2_lua-2.6.a by the way?





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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_______________________________________________
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Wxl...@li...
https://lists.sourceforge.net/lists/listinfo/wxlua-users



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Re: [Wxlua-users] wxlua require problem

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

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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_______________________________________________
Wxlua-users mailing list
Wxl...@li...
https://lists.sourceforge.net/lists/listinfo/wxlua-users



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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


-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0709&bid&3057&dat1642
_______________________________________________
Wxlua-users mailing list
Wxl...@li...
https://lists.sourceforge.net/lists/listinfo/wxlua-users



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