fix: icu-static-win, ext-swoole, krb5

[crazywhalecc]

What does this PR do?

• Closes Followed From CLI Build Command Generator and got error #1084
• Closes Swoole build bug on gnu-docker #1060
• Closes Build failed after adding sqlsrv,pdo_sqlsrv #1083
• Fix https://github.com/static-php/static-php-cli-hosted/actions/runs/24224488409/job/70722738151#step:11:29067

Checklist before merging

If your PR involves the changes mentioned below and completed the action, please tick the corresponding option.
If a modification is not involved, please skip it directly.

• If you modified *.php or *.json, run them locally to ensure your changes are valid:
  • composer cs-fix
  • composer analyse
  • composer test
  • bin/spc dev:sort-config
• If it's an extension or dependency update, please ensure the following:
  • Add your test combination to src/globals/test-extensions.php.
  • If adding new or fixing bugs, add commit message containing extension test or test extensions to trigger full test suite.

[henderkes]

run CI test please

[henderkes]

Just realized that macOS runners are still using Clang 17. Should really update to 19+ for vastly improved performance.

[crazywhalecc]

Just realized that macOS runners are still using Clang 17. Should really update to 19+ for vastly improved performance.

I already introduced a env var to handle this on v3, it will automatically use homebrew version of llvm.

static-php-cli/config/env.ini

Lines 137 to 138 in 7e2cfe2

	; Whether to use brew version of llvm or system version (valid options: 'system', 'brew', default: 'system')
	SPC_USE_LLVM=system

[henderkes]

we have a variable for whether avx2/avx512 are enabled

[crazywhalecc]

Which one?

[crazywhalecc]

Found it:

$code = '#include <immintrin.h>
int main() { return _mm256_cvtsi256_si32(_mm256_setzero_si256()); }';
        $cc = getenv('CC') ?: 'gcc';
        [$ret] = shell()->execWithResult("printf '%s' '{$code}' | {$cc} -x c -mavx2 -o /dev/null - 2>&1");
        $disableAvx2 = $ret !== 0 && GNU_ARCH === 'x86_64' && PHP_OS_FAMILY === 'Linux';

[crazywhalecc]

It seems better to abstract it into a separate method on v3 and pass it using environment variables.

[henderkes]

We should do it like php-src. There's a --enable-native-intrinsics=level switch that defines what level will be chosen.

Levels are SSE2 (default on x86), SSE3...4.2, AVX2, AVX512. On aarch64 I forgot the names something like neonv8.

[crazywhalecc]

We can create a separate issue tracking it though