Tweak to catch missing directories from the Makefiles in the various

categories which were failing to be mapped from directory to port name
because 'make index' can't know to run 'make describe' in directories
it doesn't know exist.

1 files changed, 5 insertions, 1 deletions

diff --git a/Tools/make_index b/Tools/make_index
index f9cddb2..f2ba289 100644
--- a/Tools/make_index
+++ b/Tools/make_index
@@ -25,7 +25,11 @@ sub by_path {
   # Collapse all the '..' sequences.
     my @f = split('/', $name), @p = ();
     foreach (@f) { (/\.\./) ? pop(@p) : push(@p, $_); }
-    return $by_path{join('/', @p)};
+    $name = join('/', @p);
+    return $by_path{$name} if (defined $by_path{$name});
+
+    print STDERR "make_index: no entry for: $name\n";
+    return undef;
 }
 
 # This routine replaces what used to be the time-consuming