assertion when using clang + libobjc2

[Riccardo Mottola]

Hi All,

I just finished upgrading a Linux/x86 system where I run clang as 
compiler and David's libobjc2 compiled from our sources. It is gentoo 
stable, whith clang 5.0

libobjc2 was compiled with the same clang and from git head.

After updating libobjc2, any program dies:

 $ plparse
plparse: /home/multix/gnustep-cvs/libobjc2/protocol.c:226: BOOL 
init_protocols(struct objc_protocol_list *): Assertion `aProto->isa == 
protocol_class_gcc' failed.
Aborted

I have recompiled also base, just for safety, but no help.


any clues?
Riccardo