[Wxlua-users] Re: wxLua works as module, require"wx"

[Francesco M. <f18...@ya...>]

John Labenski ha scritto:
> In the wxLua/apps/luamodule dir is code to make lua require"wx" work in 
> Linux.
> 
> You create the wx.so library by running $make in the
> wxLua/apps/luamodule/src dir and all of wxLua will be created for you.
> The output wx.so lib is just dumped in the src dir for now.  The
> Makefile uses the wx-config script and therefore it MUST be in your
> path. Additionally it puts the resultant wxLua libs it creates in the
> appropriate lib dir of wxWidgets so it must be writeable. As a
> developer I never bother to install wxWidgets, but if you have you'll
> have to hack the Makefiles located in each XXX/src dir to output them
> elsewhere. The Makefiles are fairly straightforward so this shouldn't
> be difficult. Eventually we'll get the bakefile's configure to work
> with this new project.
yes, sure

> 
> A sample program called luamodule.wx.lua in that dir shows it working
> by simply creating a wxFrame. Test it from the
> wxLua/apps/luamodule/src dir using
> $../../../bin/lua luamodule.wx.lua
> 
> ps. Francesco can you rebake the files. I have added back the
> -DWXLUA_CODE define, now called WXLUA_LUA_NEWTHREAD for clarity in
> modules/build/bakefiles/modules.bkl. We had to remove that previously,
> but now I see that it's required for using wxLua as a module.
Done...

> 
> Also, about adding this to bakefile? Note: The output must
> unfortunately be called wx.so since otherwise require"wx" will fail.
I have a little mess currently with wxWidgets as I have various 
installed versions and all patched so it will take me a bit before being 
able to test the bakefiles for luamodule but I've already written the 
necessary stuff ;)

> 
> I don't really understand completely what I've done, but it seems to
> work. See apps/luamodule/src/Makefile and the wx.so: tag. I guess I'm
> compiling the luamodule.cpp file,
yes, sure

> linking it with all the other libs,
yes but this is a dynamic link (wx.so is only 150K on my system)

> and then creating a .so library using -shared. I think also that -fpic
> is needed.
yes, -fpic is for generating code for shared objects (pic = position 
independent code)...

> 
> I haven't the foggiest idea about how to do the same in MSW, I guess
> it should be a DLL? 
yes, I think so.

>But then how do you "link" this DLL to all of the
> wxLua and wxWidgets DLLs 
using the import libraries generated when creating the DLL (i.e. when 
you compile with SHARED=1 both .lib and .dll files are created - the 
.lib are import libraries).

>or can you create the wxLua and wxWidgets
> libs as libs and link them to the DLL?
if I got it right then: no it's not possible.
code compiled in "DLL" mode is different from code compiled for static 
linking.

Francesco