[Fwd: Re: Frameworks under MS Windows and linking issues]

[Andre Levy]

once again...

-------- Original Message --------
Subject: Re: Frameworks under MS Windows and linking issues
Date: Fri, 18 Mar 2005 13:47:48 +0100
From: andre levy <gsalevy@almonde.com>
To: Marc Brünink <mbruen@smartsoft.de>
References: <F20C675F-97A2-11D9-822B-000A959A666C@smartsoft.de>

Marc Brünink wrote:

> On Friday, Mar 18, 2005, at 05:38 Europe/Berlin, Adam Fedor wrote:
>
> > On Mar 16, 2005, at 3:45 PM, Marc Brünink wrote:
> >
> > > Hi List,
> > >
> > > finally we managed it to compile & install a small but evil framework 
> > > under MS Windows. So we got a myFramework.dll. But now the next 
> > > problem arises: How to link a program against this framework? I tried 
> > > something like -lmyFramework but this did not work. Probably I am 
> > > just too tired and too beat-up. Could someone help please.
> > I don't think there is a good way to do it now. Particularly on 
> > Windows.  You probably need to specify the location of the framework 
> > as well...
> >
> > ADDITIONAL_TOOL_LIBS += -lmyFramework
> > ADDITIONAL_LIB_DIRS += -L../Frameworks/myFramework.framework/Current/....
> > ADDITIONAL_INCLUDE_DIRS += -I../Frameworks/...
>
>
> I'm stuck. I just don't get it. I always get this error. Probably I am a 
> real huge blockhead, but i'm going round in circles.
>
>
> gcc        -o shared_obj/FBConnWin.exe \
>         ./shared_obj/FBConnWin_main.o \
>          -Lc:/GNUstep/System/Library/Frameworks/SRFoundation.framework 
> -Lc:/GNUstep/Library/Libraries -Lc:/GNUstep/Local/Library/Libraries 
> -Lc:/GNUstep/System/Library/Libraries -lSRFoundation -lgnustep-base 
> -lobjc -lws2_32 -ladvapi32 -lcomctl32 -luser32 -lcomdlg32 -lmpr 
> -lnetapi32 -lm -I.
> ./shared_obj/FBConnWin_main.o(.data+0x398):FBConnWin_main.m: undefined 
> reference to `__objc_class_name_SRConnection'
> make[1]: *** [shared_obj/FBConnWin.exe] Error 1
> make: *** [FBConnWin.all.tool.variables] Error 2

2 questions come to my mind:

1/ SRFoundation.framework is located in c:/GNUstep/System rather than in
c:/GNUstep/Local. is that on purpose? or is it the default location for
a framework when you 'make install'?

2/ I very much doubt that the _complete_ path to your library is
c:/GNUstep/System/Library/Frameworks/SRFoundation.framework
you should probably have a library path like:

-Lc:/GNUstep/System/Library/Frameworks/SRFoundation.framework/Current

3/
> gnustep-base and gnustep-gui and so on always consist out of two files: 
> a libgnustep-base.a and a gnustep-base.dll. A compilation of my 
> framework results in just one .dll. Don't know if this is somehow 
> related. Actually the only thing I know is: This error drives me mad! 
> And the other thing: Burn Windows boxes, burn.

yes, your link process should include the generation of a '.a'.
I understand this is actually the file that is going to be used during
link time! (yes I agree that having 2 files to describe a library is a
laugh! not to mention a '.def' file that describes the APIs you want to
export but i'm going off-topic...)
So if you don't have it, then it is a bug. to help you more I need some
more information regarding your configuration.

Hope this helps

--andre