From 68ed1c8254613b8a4958cc9e8b80cae500f60179 Mon Sep 17 00:00:00 2001
From: egon_ffj <egon@freifunk-jena.de>
Date: Thu, 24 Nov 2011 00:07:55 +0100
Subject: added automatic parallel job-number for make depending on
 processor-count


diff --git a/Makefile b/Makefile
index a2f6104..051ff5c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,22 @@
+NUMPROC := 1
+OS := $(shell uname)
+export NUMPROC
+
+ifeq ($(OS),Linux)
+        NUMPROC := $(shell grep -c ^processor /proc/cpuinfo)
+
+else ifeq ($(OS),Darwin)
+        NUMPROC := $(shell sysctl hw.ncpu | awk '{print $$2}')
+endif
+
+# Always use # of processory plus 1
+NUMPROC:=$$((${NUMPROC}+1))
+NUMPROC:=$(shell echo ${NUMPROC})
+
+ifeq ($(NUMPROC),0)
+        NUMPROC = 1
+endif
+
 .NOTPARALLEL:
 
 openwrt/backfire/.repo_access:
@@ -44,6 +63,6 @@ image/%: config/$$(REPO)-$$(PLATFORM)-$$(MODEL).config \
 	cp -a files/common openwrt/$(REPO)/files
 	[ -d files/$(PLATFORM) ] && rsync -a files/$(PLATFORM)/ openwrt/$(REPO)/files/
 	[ -d files/$(PLATFORM)-$(MODEL) ] && rsync -a files/$(PLATFORM)-$(MODEL)/ openwrt/$(REPO)/files/
-	cd openwrt/$(REPO) && $(MAKE)
+	cd openwrt/$(REPO) && $(MAKE) -j$(NUMPROC)
 	mkdir -p $@
 	rsync -a openwrt/$(REPO)/bin/$(PLATFORM)/ $@/
-- 
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