From 8e96dd519e25f84ec9838757be67ad6b8c727909 Mon Sep 17 00:00:00 2001
From: Ushitora Anqou <ushitora@anqou.net>
Date: Fri, 1 May 2020 20:23:27 +0900
Subject: [PATCH] [Makefile] Don't run Yosys in parallel

---
 Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 4afc645..98f66d1 100644
--- a/Makefile
+++ b/Makefile
@@ -72,7 +72,10 @@ build/cahp-diamond/vsp-core-no-ram-rom.json: build/cahp-diamond build/yosys
 	cd build/cahp-diamond && \
 		../yosys/yosys build-no-ram-rom.ys
 
-build/cahp-emerald/vsp-core-no-ram-rom.json: build/cahp-emerald build/yosys
+# NOTE: build/cahp-diamond/vsp-core-no-ram-rom.json is "fake" dependency;
+# Without this the builds for Diamond and Emerald will run in parallel
+# to consume too much memory.
+build/cahp-emerald/vsp-core-no-ram-rom.json: build/cahp-emerald build/yosys build/cahp-diamond/vsp-core-no-ram-rom.json
 	cd build/cahp-emerald && \
 		../yosys/yosys build-no-ram-rom.ys