From 8699fdf12e647d046a7d6934ca0b3c4bcf09ca0b Mon Sep 17 00:00:00 2001
From: Marco Hess <marco.hess@through-ip.com>
Date: Wed, 24 Jun 2015 13:59:44 -0400
Subject: [PATCH] Pcbnew: minor Protel gerber file extension fixes.

* Assign file extensions .g1d, .g2d, .g3d, ... for internal copper layers.
* Assign file extension .gm1 for edge cut layer.
---
 pcbnew/pcbplot.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pcbnew/pcbplot.cpp b/pcbnew/pcbplot.cpp
index 7d5527e88f..4b8f89e1f6 100644
--- a/pcbnew/pcbplot.cpp
+++ b/pcbnew/pcbplot.cpp
@@ -55,7 +55,7 @@ const wxString GetGerberExtension( LAYER_NUM aLayer )
             return wxT( "gbl" );
         else
         {
-            return wxT( "gbr" );
+            return wxString::Format( wxT( "g%d" ), aLayer+1 );
         }
     }
     else
@@ -74,11 +74,12 @@ const wxString GetGerberExtension( LAYER_NUM aLayer )
         case B_Mask:        return wxT( "gbs" );
         case F_Mask:        return wxT( "gts" );
 
+        case Edge_Cuts:     return wxT( "gm1" );
+
         case Dwgs_User:
         case Cmts_User:
         case Eco1_User:
         case Eco2_User:
-        case Edge_Cuts:
         default:            return wxT( "gbr" );
         }
     }