From 8de7a893c2574f1a9016c85b1a43c05e5e923c5f Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Fri, 29 Nov 2024 00:35:25 -0600
Subject: [PATCH] BigInteger: improve detection of newly introduced GMP bug

---
 phpseclib/Math/BigInteger.php | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/phpseclib/Math/BigInteger.php b/phpseclib/Math/BigInteger.php
index 066788ad..439c3663 100644
--- a/phpseclib/Math/BigInteger.php
+++ b/phpseclib/Math/BigInteger.php
@@ -245,9 +245,17 @@ class Math_BigInteger
     function __construct($x = 0, $base = 10)
     {
         if (!defined('MATH_BIGINTEGER_MODE')) {
+
+            // https://github.com/php/php-src/commit/e0a0e216a909dc4ee4ea7c113a5f41d49525f02e broke GMP
+            // https://github.com/php/php-src/commit/424ba0f2ff9677d16b4e339e90885bd4bc49fcf1 fixed it
+            // see https://github.com/php/php-src/issues/16870 for more info
+            if (version_compare(PHP_VERSION, '8.2.26', '<')) {
+                $gmpOK = true;
+            } else {
+                $gmpOK = !in_array(PHP_VERSION_ID, array(80226, 80314, 80400, 80401));
+            }
             switch (true) {
-                // PHP 8.4.0 and 8.4.1 don't work with GMP per https://github.com/php/php-src/issues/16870
-                case extension_loaded('gmp') && !(version_compare(PHP_VERSION, '8.4.0', '>=') && version_compare(PHP_VERSION, '8.4.1', '<=')):
+                case extension_loaded('gmp') && $gmpOK:
                     define('MATH_BIGINTEGER_MODE', MATH_BIGINTEGER_MODE_GMP);
                     break;
                 case extension_loaded('bcmath'):