use return value of realpath() and note an error if it occurs

git-svn-id: svn://localhost/ardour2/branches/3.0@10732 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-11-21 16:34:56 +00:00
parent 6e2bd18905
commit e0ebeb3d5d
1 changed files with 7 additions and 2 deletions
--- a/libs/ardour/utils.cc
+++ b/libs/ardour/utils.cc
@@ -340,8 +340,13 @@ path_expand (string path)
 	/* canonicalize */

 	char buf[PATH_MAX+1];
-	realpath (path.c_str(), buf);
-	return buf;
+
+	if (realpath (path.c_str(), buf)) {
+		return buf;
+	} else {
+		error << string_compose (_("programming error: realpath(%1) failed, errcode %2"), path, errno) << endmsg;
+		return path;
+	}
 }

 #if __APPLE__