'++nothing+crc' is not a recognized feature for this target (ignoring feature) when compiling C language on M1 / M2 mac

[youkidearitai]

Description

Displays '++nothing+crc' is not a recognized feature for this target (ignoring feature) when compiling ext/standard/crc32.c on M1 / M2 mac.

$ make
/bin/sh /Users/tekimen/src/php-src/libtool --silent --preserve-dup-deps --tag CC --mode=compile cc -Iext/standard/ -I/Users/tekimen/src/php-src/ext/standard/ -I/Users/tekimen/src/php-src/include -I/Users/tekimen/src/php-src/main -I/Users/tekimen/src/php-src -I/Users/tekimen/src/php-src/ext/date/lib -I/opt/homebrew/opt/libiconv/include -I/opt/homebrew/Cellar/oniguruma/6.9.8/include -I/Users/tekimen/src/php-src/ext/mbstring/libmbfl -I/Users/tekimen/src/php-src/ext/mbstring/libmbfl/mbfl -I/Users/tekimen/src/php-src/TSRM -I/Users/tekimen/src/php-src/Zend  -D_GNU_SOURCE  -fno-common -Wstrict-prototypes -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -g -fvisibility=hidden -O0 -DZEND_SIGNALS   -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -c /Users/tekimen/src/php-src/ext/standard/crc32.c -o ext/standard/crc32.lo  -MMD -MF ext/standard/crc32.dep -MT ext/standard/crc32.lo

Resulted in this output:

'++nothing+crc' is not a recognized feature for this target (ignoring feature)
'++nothing+crc' is not a recognized feature for this target (ignoring feature)

But I expected this output instead:

(displays nothing)

I think fix below on ext/standard/crc32.c line no 72, however I don't know well to #pragma target .

 72 #   pragma clang attribute push(__attribute__((target("crc"))), apply_to=function)

PHP Version

PHP 8.3 (master)

Operating System

macOS 13.4.1

[youkidearitai]

Ah, I found talk about "+nothing+crc" GCC mailing list
https://gcc.gnu.org/legacy-ml/gcc-patches/2015-07/msg02011.html

#pragma GCC target ("+nothing+crc") where the +nothing clears out aarch64_isa_flags,

Therefore, my idea is maybe wrong.