Fix build on Apple Clang 17+

[kocsismate]

After upgrading my Xcode version to the one that includes Apple Clang 17.0.0, I got the following compilation errors:

In file included from php-src/ext/hash/hash_sha.c:20:
php-src/Zend/zend_cpuinfo.h:133:9: error: invalid cpu feature string for builtin [-Werror]
  133 |         return __builtin_cpu_supports("sse2");
      |                ^                      ~~~~~~
php-src/Zend/zend_cpuinfo.h:141:9: error: invalid cpu feature string for builtin [-Werror]
  141 |         return __builtin_cpu_supports("sse3");
      |                ^                      ~~~~~~
php-src/Zend/zend_cpuinfo.h:149:9: error: invalid cpu feature string for builtin [-Werror]
  149 |         return __builtin_cpu_supports("ssse3");
      |                ^                      ~~~~~~~
php-src/Zend/zend_cpuinfo.h:157:9: error: invalid cpu feature string for builtin [-Werror]
  157 |         return __builtin_cpu_supports("sse4.1");
      |                ^                      ~~~~~~~~
php-src/Zend/zend_cpuinfo.h:165:9: error: invalid cpu feature string for builtin [-Werror]
  165 |         return __builtin_cpu_supports("sse4.2");
      |                ^                      ~~~~~~~~
php-src/Zend/zend_cpuinfo.h:173:9: error: invalid cpu feature string for builtin [-Werror]
  173 |         return __builtin_cpu_supports("avx");
      |                ^                      ~~~~~
php-src/Zend/zend_cpuinfo.h:181:9: error: invalid cpu feature string for builtin [-Werror]
  181 |         return __builtin_cpu_supports("avx2");

In order to fix the errors, I added some preprocessor conditions that skip calling __builtin_cpu_supports with the unsupported features on an Apple ARM when using Apple Clang.

Alternatively, I could have used a configure script based approach (probably similarly to

php-src/build/php.m4

Line 2458 in a191e7a

dnl PHP_CHECK_AVX512_SUPPORTS

), but I didn't really know how to implement a similar check there... So at last I sticked with the original, maybe less elegant solution.

[nielsdos]

Just checking for __aarch64__ should be enough and is simpler

[nielsdos]

Although ideally we would use an allowlust rather than a denylist but that requires knowing what cpu we build for for sure and not all compilers set it the same way

[nielsdos]

Ok for me