9704 move socket functions to libc

*** 43,53 ****
  
  CERRWARN +=     -_gcc=-Wno-switch
  
  MAPFILES =      $(SRCDIR)/mapfile
  
! LDLIBS +=       -lc -lsocket -lnsl
  
  .KEEP_STATE:
  
  all:    $(LIBS)
  
--- 43,53 ----
  
  CERRWARN +=     -_gcc=-Wno-switch
  
  MAPFILES =      $(SRCDIR)/mapfile
  
! LDLIBS +=       -lc -lnsl
  
  .KEEP_STATE:
  
  all:    $(LIBS)