Index: configure
===================================================================
--- configure	(revision 269948)
+++ configure	(working copy)
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 267759 .
+# From configure.ac Revision: 268126 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.4.
 #
@@ -7909,8 +7909,22 @@
 # Check whether --enable-dev-mode was given.
 if test "${enable_dev_mode+set}" = set; then
   enableval=$enable_dev_mode; case "${enableval}" in
-	      y|ye|yes) AST_DEVMODE=yes ;;
-	      n|no)  AST_DEVMODE=no ;;
+	      y|ye|yes) AST_DEVMODE=yes
+	        if test -f makeopts; then
+	          wasdevmode=`${GREP} -c AST_DEVMODE=yes makeopts`
+	          if test $wasdevmode = 0; then
+	            rm menuselect-tree
+              fi
+            fi
+	      ;;
+	      n|no)  AST_DEVMODE=no
+	        if test -f makeopts; then
+	          wasdevmode=`${GREP} -c AST_DEVMODE=yes makeopts`
+	          if test $wasdevmode = 1; then
+	            rm menuselect-tree
+              fi
+            fi
+	      ;;
 	      *) { { echo "$as_me:$LINENO: error: bad value ${enableval} for --enable-dev-mode" >&5
 echo "$as_me: error: bad value ${enableval} for --enable-dev-mode" >&2;}
    { (exit 1); exit 1; }; }  ;;
Index: configure.ac
===================================================================
--- configure.ac	(revision 269948)
+++ configure.ac	(working copy)
@@ -219,8 +219,22 @@
 AC_ARG_ENABLE(dev-mode,
 	[  --enable-dev-mode    Turn on developer mode],
 	[case "${enableval}" in
-	      y|ye|yes) AST_DEVMODE=yes ;;
-	      n|no)  AST_DEVMODE=no ;;
+	      y|ye|yes) AST_DEVMODE=yes
+	        if test -f makeopts; then
+	          wasdevmode=`${GREP} -c AST_DEVMODE=yes makeopts`
+	          if test $wasdevmode = 0; then
+	            rm menuselect-tree
+              fi
+            fi
+	      ;;
+	      n|no)  AST_DEVMODE=no
+	        if test -f makeopts; then
+	          wasdevmode=`${GREP} -c AST_DEVMODE=yes makeopts`
+	          if test $wasdevmode = 1; then
+	            rm menuselect-tree
+              fi
+            fi
+	      ;;
 	      *) AC_MSG_ERROR(bad value ${enableval} for --enable-dev-mode)  ;;
 	esac])
 AC_SUBST(AST_DEVMODE)