From 3ea77cacbbba4108aad51df2ce182f292ec9e179 Mon Sep 17 00:00:00 2001
From: Alexander Voigt <alexander.voigt@desy.de>
Date: Wed, 14 Oct 2015 13:32:27 +0200
Subject: [PATCH] Revert "remove unused function"

This reverts commit cb3755d7a4ea4bcbec81c6a350e9ef610eefa18a.

Conflicts:

	config/depgen.cpp
---
 config/depgen.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/config/depgen.cpp b/config/depgen.cpp
index e64a956ea..3f0ea5234 100644
--- a/config/depgen.cpp
+++ b/config/depgen.cpp
@@ -25,6 +25,15 @@
 #include <string>
 #include <vector>
 
+/// returns directory from file name
+std::string directory(const std::string& file_name)
+{
+   const std::size_t pos = file_name.find_last_of("/\\");
+   if (pos == std::string::npos)
+      return ".";
+   return file_name.substr(0,pos);
+}
+
 /// checks if given file exists
 bool file_exists(const std::string& name)
 {