From dffd1179c5207284b58e86901693c28a8311ba92 Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sat, 20 Apr 2019 15:08:34 -0400
Subject: [PATCH] Add a mechanism to load kifaces when run from the build
 directory

This is useful when working on code paths that rely on KiWay
communications, since you can run and debug the kicad application
without needing to run an install task first.
---
 common/kiway.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/common/kiway.cpp b/common/kiway.cpp
index 4923afca1f..ef94296ab1 100644
--- a/common/kiway.cpp
+++ b/common/kiway.cpp
@@ -34,6 +34,7 @@
 
 #include <wx/stdpaths.h>
 #include <wx/debug.h>
+#include <wx/utils.h>
 
 
 KIFACE* KIWAY::m_kiface[KIWAY_FACE_COUNT];
@@ -131,6 +132,19 @@ const wxString KIWAY::dso_search_path( FACE_T aFaceId )
 
     fn.SetName( name );
 
+#ifdef DEBUG
+    // To speed up development, it's sometimes nice to run kicad from inside
+    // the build path.  In that case, each program will be in a subdirectory.
+    // To find the DSOs, we need to go up one directory and then enter a subdirectory
+    // with the same name as the DSO (without the prefix).
+
+    if( wxGetEnv( wxT( "KICAD_RUN_FROM_BUILD_DIR" ), nullptr ) )
+    {
+        fn.RemoveLastDir();
+        fn.AppendDir( name + 1 );
+    }
+#endif
+
     // Here a "suffix" == an extension with a preceding '.',
     // so skip the preceding '.' to get an extension
     fn.SetExt( KIFACE_SUFFIX + 1 );         // + 1 => &KIFACE_SUFFIX[1]