diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index 8795d0a6..f2fe1029 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -54,7 +54,7 @@ $extensions = match (PHP_OS_FAMILY) {
 
 // If you want to test shared extensions, add them below (comma separated, example `bcmath,openssl`).
 $shared_extensions = match (PHP_OS_FAMILY) {
-    'Linux' => 'amqp,brotli,bz2,dio,ds,ev,event,ffi,ftp,gd,gettext,gmp,gmssl,igbinary,imagick,inotify,intl,ldap,lz4,memcache,memcached,mongodb,msgpack,mysqli,mysqlnd,odbc,opentelemetry,parallel,pdo,pdo_mysql,pdo_odbc,pdo_pgsql,pdo_sqlite,pdo_sqlsrv,pgsql,protobuf,rar,redis,rdkafka,shmop,spx,sqlite3,sqlsrv,ssh2,swoole,sysvmsg,sysvsem,sysvshm,tidy,uuid,uv,xdebug,xhprof,xlswriter,xsl,xz,yac,yaml,zstd',
+    'Linux' => '',
     'Darwin' => '',
     'Windows' => '',
 };
@@ -157,12 +157,7 @@ if ($shared_extensions) {
             $shared_cmd = ' --build-shared=' . quote2($shared_extensions) . ' ';
             break;
         case 'ubuntu-24.04':
-            putenv('SPC_TARGET=native-native-gnu.2.17');
-            $shared_cmd = ' --build-shared=' . quote2($shared_extensions) . ' ';
-            break;
         case 'ubuntu-24.04-arm':
-            putenv('SPC_TARGET=native-native-gnu.2.28');
-            $shared_cmd = ' --build-shared=' . quote2($shared_extensions) . ' ';
             break;
         case 'macos-13':
         case 'macos-14':