devel/nspr fails 'make test' but builds OK

[Paul Hoffman]

At the end of 'make', it suggests running 'make test'. I did so, and 
in the middle it reports:

         forktest                        FAILED
         forktest:       Wait one second before accept
         forktest:       Wait one second before connect
         forktest:       Accepting connection at port 59298
         forktest:       Connecting to port 59298
         forktest:       Writing message "Hello world!"
         forktest:       Received "Hello world!" from the client
         forktest:       The message is received correctly
         forktest:       Fork succeeded.  Parent process continues.
         forktest:       Wait one second before accept
         forktest:       Wait one second before connect
         forktest:       Fatal error 'mutex is on list' at line 540 in 
file /usr/src/lib/libpthread/thread/thr_mutex.c (errno = 35)
         forktest:       Fork succeeded.  Child process continues.
         forktest:       Accepting connection at port 57028
         forktest:       Connecting to port 57028
         forktest:       Writing message "Hello world!"
         forktest:       Received "Hello world!" from the client
         forktest:       The message is received correctly
         forktest:       Parent process exits.
         forktest:       FAILED

Later in that same batch of tests, it hangs on "socket" for a very 
long time (forever?). So, I ctl-c and do a 'make install', which 
seems to go fine.

This is on 6.0-RELEASE.