diff --git a/tools/configure.c b/tools/configure.c
index c849b5e3d0..2cb297924e 100644
--- a/tools/configure.c
+++ b/tools/configure.c
@@ -1508,11 +1508,19 @@ static void refresh(void)
   printf("  Refreshing...\n");
   fflush(stdout);
 
+  if (g_debug)
+    {
+      ret = system("make olddefconfig V=1");
+    }
+  else
+   {
 #ifdef WIN32
-  ret = system("make olddefconfig");
+      ret = system("make olddefconfig");
 #else
-  ret = system("make olddefconfig 1>/dev/null");
+      ret = system("make olddefconfig 1>/dev/null");
 #endif
+   }
+
   putchar('\n');
 
 #ifdef WEXITSTATUS
diff --git a/tools/configure.sh b/tools/configure.sh
index 7df56f78b7..db9a489368 100755
--- a/tools/configure.sh
+++ b/tools/configure.sh
@@ -70,6 +70,7 @@ unset boardconfig
 unset appdir
 unset host
 unset wenv
+debug=n
 skip=0
 
 while [ ! -z "$1" ]; do
@@ -83,6 +84,7 @@ while [ ! -z "$1" ]; do
       wenv=cygwin
       ;;
     -d )
+      debug=y
       set -x
       ;;
     -g )
@@ -379,5 +381,8 @@ if [ ! -z `which gmake 2>/dev/null` ]; then
   MAKE_BIN=gmake
 fi
 
-${MAKE_BIN} olddefconfig 1>/dev/null
-
+if [ "X${debug}" = "Xy" ]; then
+  ${MAKE_BIN} olddefconfig V=1
+else
+  ${MAKE_BIN} olddefconfig 1>/dev/null
+fi