handle broken symlinks, Closes: #985303

bin/fcopy

@@ -5,7 +5,7 @@
 # fcopy -- copy files using FAI classes and preserve directory structure
 #
 # This script is part of FAI (Fully Automatic Installation)
-# Copyright (C) 2000-2020 Thomas Lange, lange@informatik.uni-koeln.de
+# Copyright (C) 2000-2022 Thomas Lange, lange@informatik.uni-koeln.de
 # Universitaet zu Koeln
 # Copyright (C) 2001-2005 Henning Glawe, glaweh@physik.fu-berlin.de
 # Freie Univeritaet Berlin
@@ -137,6 +137,12 @@ sub copy_one {
     }
   }
 
+  # handle broken symlink
+  unless (stat($sourcefile)) {
+    ewarn "$sourcefile is a broken symlink\n";
+    return;
+  }
+
   # do we need a tmpfile
   if ($substitute or -f "$ps/_substitute" or -x "$ps/preinst") {
     ($tmpfh,$tmpfile)=tempfile("fcopy.XXXXXX",DIR=>File::Spec->tmpdir());