Prevent duplication of search path elements when symlinks are involved (#4568).

git-svn-id: svn://localhost/ardour2/branches/3.0@11592 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 7 insertions, 1 deletions

diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 10039a7ff4..bafa50a275 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -4482,7 +4482,13 @@ Session::ensure_search_path_includes (const string& path, DataType type)
 	split (search_path, dirs, ':');
 
 	for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
-		if (*i == path) {
+		/* No need to add this new directory if it has the same inode as
+		   an existing one; checking inode rather than name prevents duplicated
+		   directories when we are using symlinks.
+
+		   On Windows, I think we could just do if (*i == path) here.
+		*/
+		if (inodes_same (*i, path)) {
 			return;
 		}
 	}