diff --git a/config/ext.json b/config/ext.json
index e5aa0ce3..d1559900 100644
--- a/config/ext.json
+++ b/config/ext.json
@@ -756,6 +756,14 @@
             "apcu"
         ]
     },
+    "snmp": {
+        "type": "builtin",
+        "arg-type-unix": "with",
+        "arg-type-windows": "with",
+        "lib-depends": [
+            "net-snmp"
+        ]
+    },
     "soap": {
         "support": {
             "BSD": "wip"
diff --git a/config/lib.json b/config/lib.json
index c3d864f4..f40a8181 100644
--- a/config/lib.json
+++ b/config/lib.json
@@ -697,6 +697,17 @@
             "libncurses.a"
         ]
     },
+    "net-snmp": {
+        "source": "net-snmp",
+        "pkg-configs": [
+            "netsnmp",
+            "netsnmp-agent"
+        ],
+        "lib-depends": [
+            "openssl",
+            "zlib"
+        ]
+    },
     "nghttp2": {
         "source": "nghttp2",
         "static-libs-unix": [
diff --git a/config/source.json b/config/source.json
index 349ba68c..d014bc62 100644
--- a/config/source.json
+++ b/config/source.json
@@ -810,6 +810,14 @@
             "path": "COPYING"
         }
     },
+    "net-snmp": {
+        "type": "ghtagtar",
+        "repo": "net-snmp/net-snmp",
+        "license": {
+            "type": "file",
+            "path": "COPYING"
+        }
+    },
     "nghttp2": {
         "type": "ghrel",
         "repo": "nghttp2/nghttp2",
diff --git a/src/SPC/builder/extension/snmp.php b/src/SPC/builder/extension/snmp.php
new file mode 100644
index 00000000..f797c5b4
--- /dev/null
+++ b/src/SPC/builder/extension/snmp.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\store\FileSystem;
+use SPC\util\CustomExt;
+use SPC\util\PkgConfigUtil;
+
+#[CustomExt('snmp')]
+class snmp extends Extension
+{
+    public function patchBeforeBuildconf(): bool
+    {
+        $libs = implode(' ', PkgConfigUtil::getLibsArray('netsnmp'));
+        FileSystem::replaceFileStr(
+            "{$this->source_dir}/config.m4",
+            'PHP_EVAL_LIBLINE([$SNMP_LIBS], [SNMP_SHARED_LIBADD])',
+            "SNMP_LIBS=\"{$libs}\"\nPHP_EVAL_LIBLINE([\$SNMP_LIBS],  [SNMP_SHARED_LIBADD])"
+        );
+        return true;
+    }
+}
diff --git a/src/SPC/builder/linux/library/net_snmp.php b/src/SPC/builder/linux/library/net_snmp.php
new file mode 100644
index 00000000..249b28aa
--- /dev/null
+++ b/src/SPC/builder/linux/library/net_snmp.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\linux\library;
+
+class net_snmp extends LinuxLibraryBase
+{
+    use \SPC\builder\unix\library\net_snmp;
+
+    public const NAME = 'net-snmp';
+}
diff --git a/src/SPC/builder/linux/library/openssl.php b/src/SPC/builder/linux/library/openssl.php
index 95b6825b..d9e04b32 100644
--- a/src/SPC/builder/linux/library/openssl.php
+++ b/src/SPC/builder/linux/library/openssl.php
@@ -78,7 +78,7 @@ class openssl extends LinuxLibraryBase
         if (!str_contains($file = FileSystem::readFile(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc'), 'prefix=')) {
             FileSystem::writeFile(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', 'prefix=' . BUILD_ROOT_PATH . "\n" . $file);
         }
-        FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', '/Libs.private:.*/m', 'Libs.private: ${libdir}/libz.a');
+        FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', '/Libs.private:.*/m', 'Requires.private: zlib');
         FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/cmake/OpenSSL/OpenSSLConfig.cmake', '/set\(OPENSSL_LIBCRYPTO_DEPENDENCIES .*\)/m', 'set(OPENSSL_LIBCRYPTO_DEPENDENCIES "${OPENSSL_LIBRARY_DIR}/libz.a")');
     }
 }
diff --git a/src/SPC/builder/macos/library/net_snmp.php b/src/SPC/builder/macos/library/net_snmp.php
new file mode 100644
index 00000000..cb4ad7ad
--- /dev/null
+++ b/src/SPC/builder/macos/library/net_snmp.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\macos\library;
+
+class net_snmp extends MacOSLibraryBase
+{
+    use \SPC\builder\unix\library\net_snmp;
+
+    public const NAME = 'net-snmp';
+}
diff --git a/src/SPC/builder/macos/library/openssl.php b/src/SPC/builder/macos/library/openssl.php
index 9265851e..284083e2 100644
--- a/src/SPC/builder/macos/library/openssl.php
+++ b/src/SPC/builder/macos/library/openssl.php
@@ -63,7 +63,7 @@ class openssl extends MacOSLibraryBase
         if (!str_contains($file = FileSystem::readFile(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc'), 'prefix=')) {
             FileSystem::writeFile(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', 'prefix=' . BUILD_ROOT_PATH . "\n" . $file);
         }
-        FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', '/Libs.private:.*/m', 'Libs.private: ${libdir}/libz.a');
+        FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/pkgconfig/libcrypto.pc', '/Libs.private:.*/m', 'Requires.private: zlib');
         FileSystem::replaceFileRegex(BUILD_LIB_PATH . '/cmake/OpenSSL/OpenSSLConfig.cmake', '/set\(OPENSSL_LIBCRYPTO_DEPENDENCIES .*\)/m', 'set(OPENSSL_LIBCRYPTO_DEPENDENCIES "${OPENSSL_LIBRARY_DIR}/libz.a")');
     }
 }
diff --git a/src/SPC/builder/unix/library/net_snmp.php b/src/SPC/builder/unix/library/net_snmp.php
new file mode 100644
index 00000000..77d6d434
--- /dev/null
+++ b/src/SPC/builder/unix/library/net_snmp.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\unix\library;
+
+use SPC\util\executor\UnixAutoconfExecutor;
+
+trait net_snmp
+{
+    protected function build(): void
+    {
+        // use --static for PKG_CONFIG
+        UnixAutoconfExecutor::create($this)
+            ->setEnv(['PKG_CONFIG' => getenv('PKG_CONFIG') . ' --static'])
+            ->configure(
+                '--disable-mibs',
+                '--with-default-snmp-version="3"',
+                '--with-sys-contact="@@no.where"',
+                '--with-sys-location="Unknown"',
+                '--with-logfile="/var/log/snmpd.log"',
+                '--with-persistent-directory="/var/net-snmp"',
+                '--with-openssl=' . BUILD_ROOT_PATH,
+                '--with-zlib=' . BUILD_ROOT_PATH,
+            )->make(with_install: 'installheaders installlibs install_pkgconfig');
+        $this->patchPkgconfPrefix();
+    }
+}
diff --git a/src/SPC/util/executor/UnixAutoconfExecutor.php b/src/SPC/util/executor/UnixAutoconfExecutor.php
index f196cb1c..e04fe4f9 100644
--- a/src/SPC/util/executor/UnixAutoconfExecutor.php
+++ b/src/SPC/util/executor/UnixAutoconfExecutor.php
@@ -115,6 +115,12 @@ class UnixAutoconfExecutor extends Executor
         return $this;
     }
 
+    public function setEnv(array $env): static
+    {
+        $this->shell->setEnv($env);
+        return $this;
+    }
+
     public function appendEnv(array $env): static
     {
         $this->shell->appendEnv($env);
diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index 5aef4bd8..5c72cfe3 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -14,9 +14,9 @@ declare(strict_types=1);
 // test php version (8.1 ~ 8.4 available, multiple for matrix)
 $test_php_version = [
     '8.1',
-    // '8.2',
-    // '8.3',
-    // '8.4',
+    '8.2',
+    '8.3',
+    '8.4',
     '8.5',
     // 'git',
 ];
@@ -49,8 +49,8 @@ $prefer_pre_built = false;
 
 // If you want to test your added extensions and libs, add below (comma separated, example `bcmath,openssl`).
 $extensions = match (PHP_OS_FAMILY) {
-    'Linux', 'Darwin' => 'gettext',
-    'Windows' => 'bcmath,bz2,calendar,ctype,curl,dom,exif,fileinfo,filter,ftp,iconv,xml,mbstring,mbregex,mysqlnd,openssl,pdo,pdo_mysql,pdo_sqlite,phar,session,simplexml,soap,sockets,sqlite3,tokenizer,xmlwriter,xmlreader,zlib,zip',
+    'Linux', 'Darwin' => 'snmp',
+    'Windows' => 'snmp',
 };
 
 // If you want to test shared extensions, add them below (comma separated, example `bcmath,openssl`).