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Thu, 22 Jul 2021 02:08:57 +0000 Received: by kubenode507.mail-prod1.omega.gq1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID fece5ee206ffbeb5deed9a92e6dcfd02; Thu, 22 Jul 2021 02:08:53 +0000 (UTC) From: Alexey Neyman To: qemu-devel@nongnu.org Subject: [PATCH] Makefile: ignore long options Date: Wed, 21 Jul 2021 19:08:46 -0700 Message-Id: <20210722020846.3678817-1-stilor@att.net> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 References: <20210722020846.3678817-1-stilor.ref@att.net> Received-SPF: none client-ip=66.163.184.151; envelope-from=stilor@att.net; helo=sonic309-25.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Thu, 22 Jul 2021 02:20:59 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Neyman Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When searching for options like -n in MAKEFLAGS, current code may result in a false positive match when make is invoked with long options like --no-print-directory. This has been observed with certain versions of host make (e.g. 3.82) while building the Qemu package in buildroot. Filter out such long options before searching for one-character options. Signed-off-by: Alexey Neyman --- Makefile | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 6c36330eef..401c623a65 100644 --- a/Makefile +++ b/Makefile @@ -129,9 +129,11 @@ endif # 4. Rules to bridge to other makefiles ifneq ($(NINJA),) -MAKE.n = $(findstring n,$(firstword $(MAKEFLAGS))) -MAKE.k = $(findstring k,$(firstword $(MAKEFLAGS))) -MAKE.q = $(findstring q,$(firstword $(MAKEFLAGS))) +# Filter out long options to avoid flags like --no-print-directory which +# may result in false positive match for MAKE.n +MAKE.n = $(findstring n,$(firstword $(filter-out --%,$(MAKEFLAGS)))) +MAKE.k = $(findstring k,$(firstword $(filter-out --%,$(MAKEFLAGS)))) +MAKE.q = $(findstring q,$(firstword $(filter-out --%,$(MAKEFLAGS)))) MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq) NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \ $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \