From 0ad30a95a93d1d4d85a25a04e7391e15b5c61587 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 24 Apr 2021 13:53:09 +0000
Subject: [PATCH] add export of PDKMASTER_TOP to experiments9/freepdk_c4m45

---
 experiments9/freepdk_c4m45/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/experiments9/freepdk_c4m45/Makefile b/experiments9/freepdk_c4m45/Makefile
index d41c688..134f59b 100755
--- a/experiments9/freepdk_c4m45/Makefile
+++ b/experiments9/freepdk_c4m45/Makefile
@@ -1,4 +1,6 @@
-
+            # use git submodule version of c4m-pdk-freepdk45
+	    # remember to do "git submodule update --init --remote
+            PDKMASTER_TOP = $(shell pwd)/../../../c4m-pdk-freepdk45
         LOGICAL_SYNTHESIS = Yosys
        PHYSICAL_SYNTHESIS = Coriolis
                DESIGN_KIT = FreePDK_C4M45
-- 
2.30.2