ftp.nice.ch/pub/next/developer/languages/c/gcc.2.7.2.2.I.b.tar.gz#/lib/gcc-lib/i386-next-nextstep3/2.7.2.2.f.2/include/kernserv/m68k

spl.h
[View spl.h] 

us_timer.h
[View us_timer.h] 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.