From b2953be704014f74c05587993c2a3d5b24bc0bc1 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Mon, 21 May 2012 13:34:09 +0000
Subject: [PATCH] Fix NxWM bug: old window being minimized when new window open

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4757 42af7a65-404d-4744-a932-0658087f49c3
---
 arch/arm/src/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/src/Makefile b/arch/arm/src/Makefile
index 9f019862a59..ef041537568 100644
--- a/arch/arm/src/Makefile
+++ b/arch/arm/src/Makefile
@@ -121,14 +121,18 @@ endif
 	sort > $(TOPDIR)/System.map
 
 # This is part of the top-level export target
+# Note that there may not be a head object if layout is handled
+# by the linker configuration.
 
 export_head: board/libboard$(LIBEXT) $(HEAD_OBJ)
+ifneq ($(HEAD_OBJ),)
 	@if [ -d "$(EXPORT_DIR)/startup" ]; then \
 		cp -f $(HEAD_OBJ) "$(EXPORT_DIR)/startup"; \
 	 else \
 		echo "$(EXPORT_DIR)/startup does not exist"; \
 		exit 1; \
 	 fi
+endif
 
 # Dependencies