swami crashes upon start

I've build swami 2.0 & and libinstpatch 1.0 on gentoo (amd64) and I am having trouble starting it due to sigsev- Not sure, what went wrong:

 

(gdb) run

Starting program: /usr/bin/swami 

[Thread debugging using libthread_db enabled]

libswami-Message: Loading plugins from /usr/lib64/swami

libswami-Message: Loaded 4 plugins

[New Thread 0x7fffe8b35700 (LWP 20140)]

[New Thread 0x7fffe8334700 (LWP 20141)]

[New Thread 0x7ffff7e94700 (LWP 20143)]

[New Thread 0x7fffe7933700 (LWP 20144)]

 

(swami:20137): libInstPatch-CRITICAL **: ipatch_type_get_valist: assertion `type != 0' failed

 

Program received signal SIGSEGV, Segmentation fault.

0x00007ffff5fc499a in ?? () from /lib64/libc.so.6

(gdb) quit

A debugging session is active.