--- libs/filesystem/src/operations.cpp.orig	2014-10-29 16:34:00.000000000 +0100
+++ libs/filesystem/src/operations.cpp	2015-04-21 12:25:36.676659205 +0200
@@ -245,7 +245,7 @@
 
   const error_code ok;
 
-  bool error(bool was_error, error_code* ec, const string& message)
+  bool error(bool was_error, error_code* ec, const char* message)
   {
     if (!was_error)
     {
@@ -262,7 +262,7 @@
     return was_error;
   }
 
-  bool error(bool was_error, const path& p, error_code* ec, const string& message)
+  bool error(bool was_error, const path& p, error_code* ec, const char* message)
   {
     if (!was_error)
     {
@@ -280,7 +280,7 @@
   }
 
   bool error(bool was_error, const path& p1, const path& p2, error_code* ec,
-    const string& message)
+    const char* message)
   {
     if (!was_error)
     {
@@ -298,7 +298,7 @@
   }
 
   bool error(bool was_error, const error_code& result,
-    const path& p, error_code* ec, const string& message)
+    const path& p, error_code* ec, const char* message)
     //  Overwrites ec if there has already been an error
   {
     if (!was_error)
@@ -316,7 +316,7 @@
   }
 
   bool error(bool was_error, const error_code& result,
-    const path& p1, const path& p2, error_code* ec, const string& message)
+    const path& p1, const path& p2, error_code* ec, const char* message)
     //  Overwrites ec if there has already been an error
   {
     if (!was_error)