From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Sun, 16 Sep 2018 21:27:40 +0200 Subject: [Buildroot] [PATCH] package/gcc: glibc >= 2.27 needs gcc >= 5 on aarch64 In-Reply-To: <20180915155413.17663-1-romain.naour@gmail.com> References: <20180915155413.17663-1-romain.naour@gmail.com> Message-ID: <20180916212740.71d1c3ed@windsurf> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello, On Sat, 15 Sep 2018 17:54:13 +0200, Romain Naour wrote: > With the following defconfig: > BR2_aarch64=y > BR2_BINUTILS_VERSION_2_28_X=y > BR2_GCC_VERSION_4_9_X=y > BR2_TOOLCHAIN_BUILDROOT_CXX=y > > The build fail with this error: > In file included from ../sysdeps/ieee754/flt-32/math_config.h:23:0, > from ../sysdeps/ieee754/flt-32/e_expf.c:29: > ../sysdeps/aarch64/fpu/math_private.h: In function 'roundtoint': > ../sysdeps/aarch64/fpu/math_private.h:311:3: error: implicit declaration of function 'vrndn_f64' [-Werror=implicit-function-declaration] > return vget_lane_f64 (vrndn_f64 (vld1_f64 (&x)), 0); > ^ > cc1: all warnings being treated as errors > > vrndn_f64 function has been introduced in glibc code since version 2.27 [1]. > So we can't build a glibc based toolchain with gcc 4.9 anymore. > > Add a new dependency in the toolchain infra to avoid selecting > glibc toolchain using gcc 4.9. > > [1] https://sourceware.org/git/?p=glibc.git;a=commit;h=72aa623345ada1276ed89dbc00fdff9639cb8eaf > > Signed-off-by: Romain Naour > Cc: Arnout Vandecappelle > --- > package/gcc/Config.in.host | 2 ++ > 1 file changed, 2 insertions(+) Applied to master, thanks. Thomas -- Thomas Petazzoni, CTO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com