From 88bf031c0e36cd13f48ee69b41d4dfaa189c06c5 Mon Sep 17 00:00:00 2001
From: Jon Layton <jon@seequ.com>
Date: Wed, 27 Dec 2017 22:02:08 -0500
Subject: [PATCH] Mac installation: nproc -> sysctl

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 223560ab..8c8a71ce 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ brew install gcc5 --without-multilib
 Install
 ```{r, engine='bash'}
 # Build
-./zcutil/build-mac.sh -j$(nproc)
+./zcutil/build-mac.sh -j$(sysctl -n hw.physicalcpu)
 # fetch key
 ./zcutil/fetch-params.sh
 # Run