From 0dde83dee014bc662ab37145e80ac06c70861f20 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Tue, 23 Oct 2012 15:51:45 +0000
Subject: [PATCH] Fewer shell invocations in apps/Makefile

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5248 42af7a65-404d-4744-a932-0658087f49c3
---
 ChangeLog.txt | 3 +++
 Makefile      | 5 +++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ChangeLog.txt b/ChangeLog.txt
index 02843d547..79de56614 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -380,3 +380,6 @@
 	* apps/examples/nximage/nximage_main.c:  Add a 5 second delay after the
 	  NX logo is presented so that there is time for the image to be verified.
 	  Suggested by Petteri Aimonen.
+i	* apps/Makefile: Small change that reduces the number of shell invocations
+	  by one (Mike Smith).
+
diff --git a/Makefile b/Makefile
index e407e2de8..be98dbbfe 100644
--- a/Makefile
+++ b/Makefile
@@ -114,8 +114,9 @@ $(foreach BUILTIN, $(CONFIGURED_APPS), $(eval $(call ADD_BUILTIN,$(BUILTIN))))
 # provided by the user (possibly as a symbolic link) to add libraries and
 # applications to the standard build from the repository.
 
-INSTALLED_APPS += ${shell if [ -r external/Makefile ]; then echo "external"; fi}
-SUBDIRS += ${shell if [ -r external/Makefile ]; then echo "external"; fi}
+EXTERNAL_DIR := $(dir $(wildcard external/Makefile))
+INSTALLED_APPS += $(EXTERNAL_DIR)
+SUBDIRS += $(EXTERNAL_DIR)
 
 # The final build target