[gcompris-devel] Re: gcompris-devel digest, Vol 1 #424 - 5 msgs

[Bruno Coudoin]

Le jeu 18/12/2003 à 17:54, bruno patin a écrit :
> Hi all,
> 
> >-__--
> >
> >Message: 5
> >Subject: Re: [gcompris-devel] First windows port trial
> >From: Bruno Coudoin <bruno.coudoin at free.fr>
> >To: gcompris-devel <gcompris-devel at lists.sourceforge.net>
> >Organization: 
> >Date: 18 Dec 2003 02:11:10 +0100
> >Reply-To: gcompris-devel at lists.sourceforge.net
> >
> >Le lun 15/12/2003 à 12:34, Christof Petig a écrit :
> >  
> >
> >>Bruno Coudoin schrieb:
> >>    
> >>
> >>>I tried to compile gcompris on windows using cygwin.
> >>>      
> >>>
> >>This is inexact. Which target do you use Win32/Cygwin [POSIX] or 
> >>Win32/MinGW [MSVCRT -mno-cygwin]?
> >>
> >>    
> >>
> Bruno and me (BrunoP.) are usinng win32/cygwin. In previous mail I said 
> that I foresaw to port to mingw (in order to delete unnecessary code 
> from cygwin) in another step. It will ask for a mingw port of the the 
> glib/gnome etc libraries or perhaps the use of the dll directly (for the 
> last point, I'm not used to doing that).
> 
> >I use Win32/Cygwin.
> >I did install cycwin with setup.exe, and thne installed all the
> >libraries from here:
> >http://web.sfc.keio.ac.jp/~s01397ms/cygwin/index.html.en
> >
> >When you say MSVCRT, it means you need Microsoft Visual C to compile?
> >
> >  
> >
> >>>- no pthread. I emptied the body of all func in soundutils.
> >>>      
> >>>
> >>no pthread? Cygwin RT certainly has, here's a MinGW RT port:
> >>http://sources.redhat.com/pthreads-win32/
> >>
> >>    
> >>
> >Hum, perhaps I was missing some libs
> >
> >  
> >
> >>>- can't load the plugins. The plugins are compiled and installed but i
> >>>  am not sure everything is correct to make them loadable plugins.
> >>>  Did not find a solution yet
> >>>      
> >>>
> >>I expected some difficulties here. But since I don't know anything about 
> >>the plugin loader gcompris uses, I can't tell more. I would try 
> >>libltdl.a (libtool) or gmodule or LoadLibrary (native approach)
> >>    
> >>
> >
> >gcompris uses the dlopen system call
> >Perhaps I miss a library again or a compilation option difers.
> >  
> >
> The dlopen call is part of the cygwin libs (a wrapper of the LoadLibrary 
> call)  but... in unix (linux), the dlopen call can use symbols defined 
> in an exec and not in its windows counter part (due to the very nature 
> of windows) and the dll produced by cygwin are closed. It means that 
> they have to solve all the links internally (there are limits to what I 
> say but it is the problem we encounter for now) so when I will be at 
> this step, we'll see. I think as I know the structure of gcompris that 
> at max we'll have to export suymbols of the main in external dll but the 
> plugins having only a limited number of entry points could be simple.
> 
> Where am I ? Not so far. I took directly the assetml library (from cvs) 
> and tried to create the configure file (autogen.sh is given) but was 
> blocked by the the lack of the libraries mentionned by BrunoC. I'm 
> examining the configure.in file and see macro by macro what it means and 
> what libraries are really needed. In order to be coherent I will take 
> the same source and use the URL 
> 
> http://web.sfc.keio.ac.jp/~s01397ms/cygwin/index.html.en
> 
> beginning with glib and using X11 (I agree we'll have to pass to windows but I prefer to work in the same world then step by step adopting some new libraries). Perhaps am I too cautious  :-\ .
> 
> I will do this work step by step and as the gcompris package do use only the gnome canvas I think there will be no problem or so I hope  :-) .
> 
> there am I. I take as a goal to deliver something finished as a first port mid january in order to begin with deleting X11 and then porting to mingw. What do you think of this planning ?
> 
Your are lucky to be able to make a such plan, january always seems to
be next year to me ;)

After the test I made, I assume cygwin is the wrong way. I will try to
go the mingw path to see were it can bring us.
Not sure it's worth the time trying with cygwin anymore.

Bruno.