diff --git a/make.sh b/make.sh
index 948a24d39..d9f779a81 100755
--- a/make.sh
+++ b/make.sh
@@ -189,10 +189,7 @@ prepareenv() {
     set +h
     LC_ALL=POSIX
     if [ -z $MAKETUNING ]; then
-	CPU_COUNT="$(getconf _NPROCESSORS_ONLN 2>/dev/null)"
-	if [ -z "${CPU_COUNT}" ]; then
-		CPU_COUNT=1
-	fi
+	CPU_COUNT="$(system_processors)"
 
 	MAKETUNING="-j$(( ${CPU_COUNT} * 2 + 1 ))"
     fi
diff --git a/tools/make-functions b/tools/make-functions
index 1ff4613f3..676b97101 100644
--- a/tools/make-functions
+++ b/tools/make-functions
@@ -60,6 +60,10 @@ WARN="\\033[1;35m"
 FAIL="\\033[1;31m"
 NORMAL="\\033[0;39m"
 
+system_processors() {
+	getconf _NPROCESSORS_ONLN 2>/dev/null || echo "1"
+}
+
 system_memory() {
 	local key val unit