From 21d2d162ddd0d5d4a72522e544c67876865c5817 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20Rosick=C3=BD?= <pdahorek@seznam.cz>
Date: Mon, 20 May 2019 09:51:10 +0200
Subject: [PATCH] [build] enable concurrent compilation (#2888)

before
real    2m18.077s
user    1m55.516s
sys     0m21.719s

after
real    0m30.610s
user    2m34.688s
sys     0m28.359s
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 49e83d21c..aa96c3282 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@ ifndef COVERAGE
   CFLAGS   += -O2
   CXXFLAGS += -O2
   LDFLAGS  += -O2
+  MAKEFLAGS += "-j 0"
 else
   CFLAGS   += -O1 -fno-omit-frame-pointer
   CXXFLAGS += -O1 -fno-omit-frame-pointer