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[86.214.223.46]) by smtp.gmail.com with ESMTPSA id k15sm102201616wru.8.2019.01.12.09.55.45 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 12 Jan 2019 09:55:54 -0800 (PST) From: Fabrice Fontaine To: buildroot@buildroot.org Date: Sat, 12 Jan 2019 18:55:05 +0100 Message-Id: <20190112175505.14348-1-fontaine.fabrice@gmail.com> X-Mailer: git-send-email 2.14.1 Subject: [Buildroot] [PATCH v2,1/1] gnuchess: needs -fPIC X-BeenThere: buildroot@busybox.net X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fabrice Fontaine MIME-Version: 1.0 Errors-To: buildroot-bounces@busybox.net Sender: "buildroot" When building with -O2 (or -O3) on ARM cortex-M cpus, link fails on: /home/rclinux/rc-buildroot-test/scripts/instance-0/output/host/bin/arm-linux-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -Wl,-elf2flt -static -Wl,-elf2flt -static -Wl,-elf2flt -static -o gnuchess main.o components.o frontend/libfrontend.a adapter/libadapter.a engine/libengine.a -lreadline -lncurses ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context ERROR: reloc type R_ARM_THM_MOVT_ABS unsupported in this context ERROR: reloc type R_ARM_THM_MOVW_ABS_NC unsupported in this context To fix this, pas -fPIC unconditionnally Fixes: - http://autobuild.buildroot.org/results/7918757b255ed41609609d2083c2d8904ff3136e Signed-off-by: Fabrice Fontaine --- Changes v1 -> v2 (after review of Thomas Petazzoni): - Use -fPIC instead of replacing -O2/O3 by -Os package/gnuchess/gnuchess.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/package/gnuchess/gnuchess.mk b/package/gnuchess/gnuchess.mk index 4d91706de4..1bbbeb4b1b 100644 --- a/package/gnuchess/gnuchess.mk +++ b/package/gnuchess/gnuchess.mk @@ -13,4 +13,8 @@ GNUCHESS_DEPENDENCIES = host-flex flex GNUCHESS_DEPENDENCIES += $(if $(BR2_PACKAGE_READLINE),readline) \ $(TARGET_NLS_DEPENDENCIES) +GNUCHESS_CONF_ENV = \ + CFLAGS="$(TARGET_CFLAGS) -fPIC" \ + CXXFLAGS="$(TARGET_CXXFLAGS) -fPIC" + $(eval $(autotools-package))