Error installing GNUstep Base

[Brian Thedell]

I got the following message:

cat  ./Additions/subproject.def  ./unix/subproject.def 
libgnustep-base.def > der
ived_src/libgnustep-base.inp
dlltool: Error, duplicate EXPORT with oridinals: NSIntMapKeyCallBacks
make[2]: *** [derived_src/libgnustep-base.def] Error 1
make[1]: *** [libgnustep-base.all.library.variables] Error 2
make[1]: Leaving directory 
`/lib/gnustep-startup-0.12.0/build/gnustep-base-1.11.
0/Source'
make: *** [internal-all] Error 2
dlltool: Error, duplicate EXPORT with oridinals: NSIntMapKeyCallBacks
make[2]: *** [derived_src/libgnustep-base.def] Error 1
make[1]: *** [libgnustep-base.all.library.variables] Error 2
make: *** [internal-all] Error 2
---------------------------------------------------------
Installation of GNUstep Base failed. Send the 
/lib/gnustep-startup-0.12.0/build/
logs.tar.gz
file to bug-gnustep@gnu.org for help
---------------------------------------------------------

please see the attached logs.tar.gz file

logs.tar.gz
Description: GNU Zip compressed data