How to fix this?

[Elim Qiu]

address@hidden:~/Projects/gnustep/modules/dev-libs/dbuskit$ make
This is gnustep-make 2.4.0. Type 'make print-gnustep-make-help' for
help.
Making all in Source ...
Making build-headers for framework DBusKit...
 Creating DBusKit.framework/Versions/0/Headers...
 Creating DBusKit.framework/Versions/0/Headers/DBusKit.h...
 Creating DBusKit.framework/Versions/0/Headers/DKNotificationCenter.h...
 Creating DBusKit.framework/Versions/0/Headers/DKPort.h...
 Creating DBusKit.framework/Versions/0/Headers/DKProxy.h...
 Creating DBusKit.framework/Versions/0/Headers/NSConnection+DBus.h...
 Creating derived_src/.stamp...
 Creating DBusKit.framework/Versions/0/Resources...
 Updating Version/Current symlink...
Making all for framework DBusKit...
 Compiling file DKArgument.m ...
cc1obj: warnings being treated as errors
DKArgument.m: In function ‘-[DKArgument unboxValue:intoBuffer:]’:
DKArgument.m:807: error: cast from pointer to integer of different size
make[3]: *** [obj/DBusKit.obj/DKArgument.m.o] Error 1
make[2]: *** [internal-framework-run-compile-submake] Error 2
make[1]: *** [DBusKit.all.framework.variables] Error 2
make: *** [internal-all] Error 2

Thanks