From a06fd8abc54c436d942430ebaeb7ea3922f5394c Mon Sep 17 00:00:00 2001
From: Abdelrazak Younes <younes@lyx.org>
Date: Tue, 29 Jul 2008 18:13:52 +0000
Subject: [PATCH] Support symlinks, also on Windows!

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25988 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/support/FileName.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/support/FileName.cpp b/src/support/FileName.cpp
index 0a62dd3eb5..e0a6271c23 100644
--- a/src/support/FileName.cpp
+++ b/src/support/FileName.cpp
@@ -811,12 +811,19 @@ docstring const FileName::relPath(string const & path) const
 
 bool operator==(FileName const & lhs, FileName const & rhs)
 {
-	// FIXME: We need to solve these warnings from documentations:
-	// * This will not compare two different symbolic links pointing to the same
-	//   file.
+	// FIXME: We need to solve this warning from Qt documentation:
 	// * Long and short file names that refer to the same file on Windows are
 	//   treated as if they referred to different files.
-	return lhs.d->fi == rhs.d->fi;
+	if (!lhs.d->fi.isSymLink() && !rhs.d->fi.isSymLink())
+		return lhs.d->fi == rhs.d->fi;
+
+	QFileInfo fi1(lhs.d->fi);
+	if (fi1.isSymLink())
+		fi1 = QFileInfo(fi1.symLinkTarget());
+	QFileInfo fi2(rhs.d->fi);
+	if (fi2.isSymLink())
+		fi2 = QFileInfo(fi2.symLinkTarget());
+	return fi1 == fi2;
 }