From 7872e7a229ea26127a19d8b3fc707fe9dc5da583 Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Fri, 8 Nov 2013 00:53:58 -0500
Subject: Re-fix: don't add path to empty files. Fixes #536


diff --git a/src/openscad.cc b/src/openscad.cc
index 6bbaedb..ece6818 100644
--- a/src/openscad.cc
+++ b/src/openscad.cc
@@ -453,7 +453,7 @@ int cmdline(const char *deps_output_file, const std::string &filename, Camera &c
 // Only if "fileName" is not absolute, prepend the "absoluteBase".
 static QString assemblePath(const fs::path& absoluteBase,
                             const string& fileName) {
-  return QDir(QString::fromStdString((const string&) absoluteBase))
+  return fileName.empty() ? "" : QDir(QString::fromStdString((const string&) absoluteBase))
     .absoluteFilePath(QString::fromStdString(fileName));
 }
 
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