[gnustep-base 1.8.0] linking of libgnustep-base fails on Cygwin

[Frank Wegmann]

I try to get GNUstep up and running in a Cygwin environment and got the 
following error:

Linking library libgnustep-base ...
Info: resolving _xmlGetWarningsDefaultValue by linking to 
__imp__xmlGetWarningsDefaultValue (auto-import)
gnustep-base.exp(.edata+0x3f0):fake: undefined reference to 
`___objc_class_name_NSConcreteWindowsTask'
Info: resolving _xmlGetWarningsDefaultValue by linking to 
__imp__xmlGetWarningsDefaultValue (auto-import)
collect2: ld returned 1 exit status
dllwrap: gcc exited with status 1
make[2]: *** [shared_obj/gnustep-base.dll] Error 1
make[1]: *** [libgnustep-base.all.library.variables] Error 2

Before compiling GNUstep base I did the following:
- install a fresh Cygwin environment including gcc 3.3.1; version of 
cygwin itself is 1.5.5-1 (current).
- compile gcc 3.3.1 with ObjC since the dist only has C,C++, Fortran
- install libobjc-1.3.0
- install any other prerequisites as mentioned in the Build Guide
- install GNUstep make-1.8.0

Before installing libobjc-1.3.0 I tried to compile GNUstep base directly 
but failed at the same point.

Any ideas?

TIA,
Frank