From 8432e6e6f702ef707bb379c59cc9eed7764d9dfe Mon Sep 17 00:00:00 2001
From: Klement Sekera <ksekera@cisco.com>
Date: Wed, 21 Mar 2018 17:44:20 +0100
Subject: [PATCH] allow specifying number of concurrent jobs

If defined, Use MAKE_PARALLEL_JOBS as number of concurrent jobs for
build process instead of the internal calculation based on /proc/cpuinfo.

Change-Id: I18d1f526dc5c156c1cd9c9cf6dbbfd9cb8dbbad7
Signed-off-by: Klement Sekera <ksekera@cisco.com>
---
 build-root/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/build-root/Makefile b/build-root/Makefile
index 9d8cffd69df..a3335236c04 100644
--- a/build-root/Makefile
+++ b/build-root/Makefile
@@ -648,8 +648,12 @@ configure_check_timestamp =						\
 # we assume there's 1 processor; we use 2*ncpu for the -j option.
 # NB: GNU Make 4.2 will let us use '$(file </proc/cpuinfo)' to both test
 # for file presence and content; for now this will have to do.
+ifndef MAKE_PARALLEL_JOBS
 MAKE_PARALLEL_JOBS = -j $(if $(shell [ -f /proc/cpuinfo ] && head /proc/cpuinfo), \
 	$(shell grep -c ^processor /proc/cpuinfo), 2)
+else
+MAKE_PARALLEL_JOBS := -j $(MAKE_PARALLEL_JOBS)
+endif
 MAKE_PARALLEL_FLAGS ?= $(if $($(PACKAGE)_make_parallel_fails),,$(MAKE_PARALLEL_JOBS))
 
 # Make command shorthand for packages & tools.
-- 
2.16.6