From 484f442fadc2aebb773a7eb1daae3d411116e554 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Thu, 9 Dec 2004 21:39:12 +0000
Subject: [PATCH] eliminate empty path names

---
 dtool/src/prc/configVariableSearchPath.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dtool/src/prc/configVariableSearchPath.cxx b/dtool/src/prc/configVariableSearchPath.cxx
index a860c0bdb5..a94e8e48ab 100644
--- a/dtool/src/prc/configVariableSearchPath.cxx
+++ b/dtool/src/prc/configVariableSearchPath.cxx
@@ -68,7 +68,9 @@ reload_search_path() {
   for (int i = 0; i < num_unique_references; i++) {
     string dirname = _core->get_unique_reference(i)->get_string_value();
     string expanded = ExecutionEnvironment::expand_string(dirname);
-    _value.append_directory(Filename::from_os_specific(expanded));
+    if (!expanded.empty()) {
+      _value.append_directory(Filename::from_os_specific(expanded));
+    }
   }
   _value.append_path(_postfix);