Index: config/init/defaults.pm
===================================================================
--- config/init/defaults.pm	(revision 14936)
+++ config/init/defaults.pm	(working copy)
@@ -31,11 +31,13 @@
     my ($self, $conf) = @_;
 
     # We need a Glossary somewhere!
+    my $findbin = $FindBin::Bin;
+    $findbin =~ s/\/$//g;
     $conf->data->set(
         debugging => $conf->options->get('debugging') ? 1 : 0,
         optimize  => '',
         verbose   => $conf->options->get('verbose'),
-        build_dir => $FindBin::Bin,
+        build_dir => $findbin,
 
         # Compiler -- used to turn .c files into object files.
         # (Usually cc or cl, or something like that.)