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From: "Felix.Riemann at sma dot de" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug build/29698] Configuring for AArch32 on ARMv8+ disables
 optimizations
Date: Tue, 18 Oct 2022 15:46:20 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29698

--- Comment #1 from Felix Riemann <Felix.Riemann at sma dot de> ---
Patch sent to libc-alpha:
https://sourceware.org/pipermail/libc-alpha/2022-October/142771.html

It will fix configure to keep ARMv7 optimizations enabled:

$ CFLAGS=3D"-O2 -march=3Darmv8-a" ../configure --prefix=3D/usr
--host=3Darm-linux-gnueabi
configure: loading site script /usr/share/site/x86_64-unknown-linux-gnu
checking build system type... x86_64-pc-linux-gnu
checking host system type... arm-unknown-linux-gnueabi
checking for arm-linux-gnueabi-gcc... arm-linux-gnueabi-gcc
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-linux-gnueabi-gcc accepts -g... yes
checking for gcc... gcc
checking for arm-linux-gnueabi-readelf... arm-linux-gnueabi-readelf
checking for arm-linux-gnueabi-g++... arm-linux-gnueabi-g++
checking whether we are using the GNU C++ compiler... yes
checking whether arm-linux-gnueabi-g++ accepts -g... yes
checking whether arm-linux-gnueabi-g++ can link programs... yes
checking for sysdeps preconfigure fragments... aarch64 alpha arc arm config=
ure:
Found compiler is configured for something newer than v7 - using v7
...

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