From f5d7278fbe047c15d9d637b33aeb91865ddecb1e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 24 Nov 2015 16:30:49 +0200
Subject: Account for dangling/inaccessible links

---
 build/file.cxx | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'build')

diff --git a/build/file.cxx b/build/file.cxx
index 278cd5d..7e3555f 100644
--- a/build/file.cxx
+++ b/build/file.cxx
@@ -357,8 +357,19 @@ namespace build
 
     for (const dir_entry& de: dir_iterator (d))
     {
-      if (de.type () != entry_type::directory)
+      // If this is a link, then type() will try to stat() it. And if
+      // the link is dangling or points to something inaccessible, it
+      // will fail.
+      //
+      try
+      {
+        if (de.type () != entry_type::directory)
+          continue;
+      }
+      catch (const system_error& e)
+      {
         continue;
+      }
 
       dir_path sd (d / path_cast<dir_path> (de.path ()));
 
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