netdev - [PATCH iproute2] build: avoid make jobserver warnings

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Message-Id: <20200921232231.11543-1-jengelh@inai.de>
Date:   Tue, 22 Sep 2020 01:22:31 +0200
From:   Jan Engelhardt <jengelh@...i.de>
To:     stephen@...workplumber.org
Cc:     netdev@...r.kernel.org
Subject: [PATCH iproute2] build: avoid make jobserver warnings

I observe:

	» make -j8 CCOPTS=-ggdb3
	lib
	make[1]: warning: -j8 forced in submake: resetting jobserver mode.
	make[1]: Nothing to be done for 'all'.
	ip
	make[1]: warning: -j8 forced in submake: resetting jobserver mode.
	    CC       ipntable.o

MFLAGS is a historic variable of some kind; removing it fixes the
jobserver issue.
---
 Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index cadda235..5b040415 100644
--- a/Makefile
+++ b/Makefile
@@ -63,7 +63,7 @@ LDLIBS += $(LIBNETLINK)
 all: config.mk
 	@set -e; \
 	for i in $(SUBDIRS); \
-	do echo; echo $$i; $(MAKE) $(MFLAGS) -C $$i; done
+	do echo; echo $$i; $(MAKE) -C $$i; done
 
 .PHONY: clean clobber distclean check cscope version
 
@@ -101,11 +101,11 @@ version:
 
 clean:
 	@for i in $(SUBDIRS) testsuite; \
-	do $(MAKE) $(MFLAGS) -C $$i clean; done
+	do $(MAKE) -C $$i clean; done
 
 clobber:
 	touch config.mk
-	$(MAKE) $(MFLAGS) clean
+	$(MAKE) clean
 	rm -f config.mk cscope.*
 
 distclean: clobber
-- 
2.28.0