Re: [wxlua-users] Problem compiling wxlua svn 247

[Philipp Ü. <mu...@tu...>]

On Mon, 18 May 2015 09:25:06 +0200
Philipp Überbacher <mu...@tu...> wrote:

> On Sun, 17 May 2015 13:25:49 -0700
> Paul K <pau...@ya...> wrote:
> 
> > Hi Philipp ,
> > 
> > > wxlbind.cpp:831:51: error: ‘luaL_register’ was not declared in
> > > this scope luaL_register(L, wx2lua(m_nameSpace), wxlualib);
> > 
> > You probably also need -DLUA_COMPAT_MODULE, as luaL_register is not
> > part of Lua 5.2 if the compatibility mode is not turned on.
> > 
> > Paul.
> 
> 
> Thanks Paul,
> 
> I did add -DLUA_COMPAT_MODULE=TRUE
> 
> I got the following warning, which seems to suggest that this option
> does not exist:
> 
> CMake Warning:
>   Manually-specified variables were not used by the project:
> 
>     LUA_COMPAT_MODULE
> 
> And the build still fails. This option does not show up in ccmake
> either. Did I do something wrong?
> 
> Regards,
> Philipp

Answering my own question:
LUA_COMPAT_MODULE seems to be a compiletime option for Lua, not wxlua.
One that my distribution does not use.
I get the same error when I set all the wxlua options to 5.1, and that
still contains luaL_register, according to documentation
(http://www.lua.org/manual/5.1/manual.html).

My guess is that cmake still uses whatever Lua version it can find on
the system. While I do have Lua 5.1 and 5.2 installed, the default Lua
version of my distribution is now 5.3. So, cmake probably uses that,
despite me specifying something else. I guess that counts as a bug in
the cmake script.

I could build it successfully using the Lua 5.1 that ships with wxLua.
(-DwxLua_LUA_LIBRARY_USE_BUILTIN=1)
I just hope that things will work out with that.

Regards,
Philipp