XXXX check_rtime should be able to forbid libraries
XXXX check_rtime needs to learn libnsl is safe now
XXXX check_rtime could use MACH() more thoroughly
XXXX check_rtime exceptions could be tidied up.

*** 94,103 ****
--- 94,109 ----
  #       data segments.
  #
  #   EXEC_STACK
  #       Objects that are not required to have a non-executable stack
  #
+ #   FORBIDDEN_DEP
+ #       Objects allowed to link to 'forbidden' objects
+ #
+ #   FORBIDDEN
+ #       Objects to which nobody not excepted with FORBIDDEN_DEP may link
+ #
  #   NOCRLEALT
  #       Objects that should be skipped by AltObjectConfig() when building
  #       the crle script that maps objects to the proto area.
  #
  #    NODIRECT
*** 136,146 ****
  #    UNUSED_RPATH
  #       Objects with unused runpaths
  #
  
  use vars  qw($EXRE_exec_data $EXRE_exec_stack $EXRE_nocrlealt);
! use vars  qw($EXRE_nodirect $EXRE_nosymsort);
  use vars  qw($EXRE_olddep $EXRE_skip $EXRE_stab $EXRE_textrel $EXRE_undef_ref);
  use vars  qw($EXRE_unref_obj $EXRE_unused_deps $EXRE_unused_obj);
  use vars  qw($EXRE_unused_rpath);
  
  use strict;
--- 142,152 ----
  #    UNUSED_RPATH
  #       Objects with unused runpaths
  #
  
  use vars  qw($EXRE_exec_data $EXRE_exec_stack $EXRE_nocrlealt);
! use vars  qw($EXRE_nodirect $EXRE_nosymsort $EXRE_forbidden_dep $EXRE_forbidden);
  use vars  qw($EXRE_olddep $EXRE_skip $EXRE_stab $EXRE_textrel $EXRE_undef_ref);
  use vars  qw($EXRE_unref_obj $EXRE_unused_deps $EXRE_unused_obj);
  use vars  qw($EXRE_unused_rpath);
  
  use strict;
*** 441,450 ****
--- 447,457 ----
                          }
                          $Line =~ s/^[ \t]*(.*)/\t$1\t<remove search path?>/;
                          onbld_elfmod::OutMsg($ErrFH, $ErrTtl, $RelPath, $Line);
                          next;
                  }
+                 
                  # Look for unreferenced dependencies.  Note, if any unreferenced
                  # objects are ignored, then set $UnDep so as to suppress any
                  # associated unused-object messages.
                  if ($Line =~ /unreferenced object=/) {
                          if (defined($EXRE_unref_obj) &&
*** 575,585 ****
                          my($Need) = (split(' ', $Line))[3];
  
                          if (defined($EXRE_olddep) && ($Need =~ $EXRE_olddep)) {
                                  # Catch any old (unnecessary) dependencies.
                                  onbld_elfmod::OutMsg($ErrFH, $ErrTtl, $RelPath,
!                         "NEEDED=$Need\t<dependency no longer necessary>");
                          } elsif ($opt{i}) {
                                  # Under the -i (information) option print out
                                  # any useful dynamic entries.
                                  onbld_elfmod::OutMsg($InfoFH, $InfoTtl, $RelPath,
                                      "NEEDED=$Need");
--- 582,602 ----
                          my($Need) = (split(' ', $Line))[3];
  
                          if (defined($EXRE_olddep) && ($Need =~ $EXRE_olddep)) {
                                  # Catch any old (unnecessary) dependencies.
                                  onbld_elfmod::OutMsg($ErrFH, $ErrTtl, $RelPath,
!                                     "NEEDED=$Need\t<dependency no " .
!                                     "longer necessary>");
!                         } elsif (defined($EXRE_forbidden) && 
!                             ($Need =~ $EXRE_forbidden)) {
!                                 next if defined($EXRE_forbidden_dep) &&
!                                     ($FullPath =~ $EXRE_forbidden_dep);
! 
!                                 onbld_elfmod::OutMsg($ErrFH, $ErrTtl, $RelPath, 
!                                     "NEEDED=$Need\t<forbidden dependency, " .
!                                     "missing -nodefaultlibs?>");
!                                 next;
                          } elsif ($opt{i}) {
                                  # Under the -i (information) option print out
                                  # any useful dynamic entries.
                                  onbld_elfmod::OutMsg($InfoFH, $InfoTtl, $RelPath,
                                      "NEEDED=$Need");