Re: CygWin woes

[Magnus Therning]

On Sat, Apr 19, 2003 at 12:49:08AM +0200, Robert Boehne wrote:
> Magnus,
> 
> Where are the undefined symbols?  If they are in your own code,
> perhaps defined in the executable, then you won't be able to port to
> Win32, period.
> Under Windows, DLL's have to be fully resolved, this is always a good
> idea but Windows is the only platform that I'm aware of where it is
> required.  If your project is building and running under Linux (or
> some similar OS) you can add a linker flag to cause it to be an error
> if a symbol is unresolved.
> That may help you find out where the problem is.

First of all, There was no detailed report of exactly what symbols that
were undefined. Secondly, secondly I couldn't find anything that stood
out when using nm to look at the symbols, it looked to me that
everything would be fine by simply linking with libc!

I then tried to make a ridiculously simple library. The following code
was all it contained:

  int
  foo(int bar)
  {
    return 42 * bar;
  }

Libtool still complained about undefined symbols, and refused to build a
DLL in CygWin...

I will try libtool 1.5 once it's propagated to the mirror I am using,
something that might already have happened BTW.

/M

> 
> HTH,
> 
> Robert
> 
> Magnus Therning wrote:
> > 
> > Hi,
> > 
> > My first posting to the list :-)
> > 
> > This might very well be a question that has popped up before, I have
> > googled around but haven't found any solution to it, so pointers are
> > more than welcome.
> > 
> > The problem:
> > I don't manage to build DLLs undet CygWin. Libtool gives a warning that
> > undefined symbols aren't allowed in DLLs on the i686-cygwin platform. No
> > report on what symbols are undefined.
> > 
> > I am using libtool together with automake. The standard CygWin
> > distribution of libtools, so that means version 1.4e.
> > 
> > Any help is appreciated.
> > 
> > /M
> > 
> > --
> > Magnus Therning  mailto:address@hidden  PGP:0xD3BC7468
> > +31-40-2745179  http://pww.innersource.philips.com/magnus/
> > 
> > In any business model you need someone to sue. That's the American way.
> >      -- Bill Weinberg, MontaVista
> > 
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> 

-- 
Magnus Therning  mailto:address@hidden  PGP:0xD3BC7468
+31-40-2745179  http://pww.innersource.philips.com/magnus/ 

Technological progress is like an axe in the hands of a pathological
criminal.
        -- Albert Einstein

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