failure to build base on debian

[Riccardo Mottola]

Hi,

I upgraded debian and now I cannot build base anymore:

 Compiling file cifframe.m ...
In file included from 
/usr/lib/gcc/i486-linux-gnu/4.6.1/include/objc/encoding.h:37:0,
                 from cifframe.m:27:
/usr/lib/gcc/i486-linux-gnu/4.6.1/include/objc/objc-api.h:46:3: error: 
#error You can not include both objc/objc-api.h and objc/runtime.h. 
Include objc/objc-api.h for the traditional GNU Objective-C Runtime API 
and objc/runtime.h for the modern one.
In file included from 
/usr/lib/gcc/i486-linux-gnu/4.6.1/include/objc/encoding.h:37:0,
                 from cifframe.m:27:
...


gcc --version
gcc (Debian 4.6.0-7) 4.6.1 20110507 (prerelease)



Any ideas ?

Riccardo