From 46cd0609866fff203be9a1fb9da60bb8100bd0aa Mon Sep 17 00:00:00 2001
From: bryan newbold <bnewbold@leaflabs.com>
Date: Wed, 19 Jun 2013 13:14:16 -0400
Subject: don't re-coregen after every little Makefile tweak

---
 README            | 3 +++
 contrib/xilinx.mk | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/README b/README
index 0ec8ecc..eddc25c 100644
--- a/README
+++ b/README
@@ -82,3 +82,6 @@ update the Makefile.
 
 For any .xco files, strip the "Project Options" section and the final CRC line.
 
+After making any changes to the target chipset (eg, by modifying Makefile),
+you'll need to do a 'make clean' to ensure that the coregen logic is
+resynthesized correctly.
diff --git a/contrib/xilinx.mk b/contrib/xilinx.mk
index 253b91e..49cb052 100644
--- a/contrib/xilinx.mk
+++ b/contrib/xilinx.mk
@@ -80,7 +80,7 @@ $(2): $(1)
 endef
 $(foreach ngc,$(corengcs),$(eval $(call cp_template,$(ngc),$(notdir $(ngc)))))
 
-$(coregen_work_dir)/$(project).cgp: contrib/template.cgp $(mkfiles)
+$(coregen_work_dir)/$(project).cgp: contrib/template.cgp
 	@if [ -d $(coregen_work_dir) ]; then \
 		rm -rf $(coregen_work_dir)/*; \
 	else \
-- 
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