7a8191d019
Only use -lpthread for unix_seqpacket_test, not for all test programs.
MFC r262894
kern/Makefile
Set WARNS=5 for all files in this directory
kern/unix_seqpacket_test.c
Fix compiler warnings. Most were benign, but rcvbuf_oversized
wasn't working as intended because I forgot to set the buffer sizes.