From 97258f53634d7237a2962aec3387f011047ce83b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 6 Jun 2021 14:31:01 +0200
Subject: build: add ninja build tool and make it available for cmake

ninja is faster at building cmake packages than make, and according to reports
also more reliable at handling parallel builds
This commit includes a patch that adds GNU make jobserver support, in order to
allow more precise control over the number of parallel tasks

Enable parallel build by default for packages using ninja

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 rules.mk | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'rules.mk')

diff --git a/rules.mk b/rules.mk
index 51f822e3f1..8b24d3a3bb 100644
--- a/rules.mk
+++ b/rules.mk
@@ -342,6 +342,12 @@ else
     $(SCRIPT_DIR)/rstrip.sh
 endif
 
+NINJA = \
+	MAKEFLAGS="$(MAKE_JOBSERVER)" \
+	$(STAGING_DIR_HOST)/bin/ninja \
+		$(if $(findstring c,$(OPENWRT_VERBOSE)),-v) \
+		$(if $(MAKE_JOBSERVER),,-j1)
+
 ifeq ($(CONFIG_IPV6),y)
   DISABLE_IPV6:=
 else
-- 
cgit v1.2.3