CCP & CLKPSR defines are unknown within wiring.c

[Hummtaro]

D:\Dev\Arduino\portable\packages\ATtiny10Core\hardware\avr\2.0.0\cores\tiny\wiring.c: In function 'init':
D:\Dev\Arduino\portable\packages\ATtiny10Core\hardware\avr\2.0.0\cores\tiny\wiring.c:8:3: error: 'CCP' undeclared (first use in this function)
   CCP = 0xD8;
   ^
D:\Dev\Arduino\portable\packages\ATtiny10Core\hardware\avr\2.0.0\cores\tiny\wiring.c:8:3: note: each undeclared identifier is reported only once for each function it appears in
D:\Dev\Arduino\portable\packages\ATtiny10Core\hardware\avr\2.0.0\cores\tiny\wiring.c:9:3: error: 'CLKPSR' undeclared (first use in this function)
   CLKPSR = 0b0000;
   ^
exit status 1
Fehler beim Kompilieren für das Board ATtiny10/9/5/4.

I think you missed to add the relevant #include in wiring.c