Zephir\Compiler::getGccFlags PHP Method

    public function getGccFlags($development = false)
    {
        if (!Utils::isWindows()) {
            $gccFlags = getenv('CFLAGS');
            if (!is_string($gccFlags)) {
                if (!$development) {
                    $gccVersion = $this->getGccVersion();
                    if (version_compare($gccVersion, '4.6.0', '>=')) {
                        $gccFlags = '-O2 -fvisibility=hidden -Wparentheses -flto -DZEPHIR_RELEASE=1';
                    } else {
                        $gccFlags = '-O2 -fvisibility=hidden -Wparentheses -DZEPHIR_RELEASE=1';
                    }
                } else {
                    $gccFlags = '-O0 -g3';
                }
            }
            return $gccFlags;
        }
    }