19 years ago rsc
good test programs
qlocks are complicated enough that they need to be able to print during debugging.
confine pthreads to pthread.c
add chansetname prototype
as wkj pointed out, notifyseton should not call notesetenable
fix to handle new
remove debugging
changes from plan 9
change to use new thread library
clone is a bad word on linux
handle pty correctly on linux
add readn to avoid need for plan9port libc
various changes from plan 9
signal handling, add prototype for pthreadinit