From 3d59d91fdca2fa5e177156ea2b54e28bc7e02cef Mon Sep 17 00:00:00 2001
From: Matt Ettus <matt@ettus.com>
Date: Fri, 18 Jun 2010 12:05:41 -0700
Subject: proper dependency tracking for the makefile

---
 usrp2/top/Makefile.common | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'usrp2/top/Makefile.common')

diff --git a/usrp2/top/Makefile.common b/usrp2/top/Makefile.common
index d1c89fdfb..d0435fa1e 100644
--- a/usrp2/top/Makefile.common
+++ b/usrp2/top/Makefile.common
@@ -42,7 +42,8 @@ clean:
 ##################################################
 # Dependency Targets
 ##################################################
-$(ISE_FILE): $(SOURCES)
+.SECONDEXPANSION:
+$(ISE_FILE): $$(SOURCES) $$(MAKEFILE_LIST)
 	@echo $@
 	$(ISE_HELPER) ""
 
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