diff --git a/pecl/package.xml.in b/pecl/package.xml.in
new file mode 100644
index 0000000..ca43925
--- /dev/null
+++ b/pecl/package.xml.in
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package packagerversion="1.9.0" version="2.0"
+	xmlns="http://pear.php.net/dtd/package-2.0" xmlns:tasks="http://pear.php.net/dtd/tasks-1.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://pear.php.net/dtd/tasks-1.0 http://pear.php.net/dtd/tasks-1.0.xsd http://pear.php.net/dtd/package-2.0.xsd">
+ <name>pdlib</name>
+ <channel>pecl.php.net</channel>
+ <summary>PHP extension for Dlib</summary>
+ <description>
+  This extension provide some machine learning capability to php via Dlib.
+ </description>
+ <lead>
+  <name>Malvin Lok</name>
+  <user>goodspb</user>
+  <email>goodspb.luo@gmail.com</email>
+  <active>yes</active>
+ </lead>
+ <date>%RELEASE_DATE%</date>
+ <time>%RELEASE_TIME%</time>
+ <version>
+  <release>%RELEASE_VERSION%</release>
+  <api>%RELEASE_VERSION%</api>
+ </version>
+ <stability>
+  <release>%RELEASE_STABILITY%</release>
+  <api>%RELEASE_STABILITY%</api>
+ </stability>
+ <license uri="https://opensource.org/license/mit/">MIT</license>
+ <notes>
+- Add native vector_lenght() function which calculates the euclidean distance 80% faster
+ </notes>
+ <contents>
+%RELEASE_FILES%
+ </contents>
+ <dependencies>
+  <required>
+   <php>
+    <min>7.2.0</min>
+   </php>
+   <pearinstaller>
+    <min>1.4.0b1</min>
+   </pearinstaller>
+  </required>
+ </dependencies>
+ <providesextension>pdlib</providesextension>
+ <extsrcrelease />
+</package>
\ No newline at end of file
diff --git a/pecl/prep-release.php b/pecl/prep-release.php
new file mode 100644
index 0000000..248a27b
--- /dev/null
+++ b/pecl/prep-release.php
@@ -0,0 +1,162 @@
+<?php
+function verify_stability($stability) {
+    $stabilities = array(
+        "snapshot",
+        "devel",
+        "alpha",
+        "beta",
+        "stable",
+    );
+
+    if (!in_array($stability, $stabilities)) {
+        echo "Invalid stability: $stability\n";
+        echo "Must be one of: ", join(", ", $stabilities), "\n";
+        usage();
+    }
+}
+function verify_version($version, $stability) {
+    if (3 != sscanf($version, "%d.%d.%d", $major, $minor, $patch)) {
+        var_dump($major, $minor, $patch);
+        echo "Invalid version schema, expected 'major.minor.patch' (1.2.3), got $version\n";
+        usage();
+    }
+
+    if ($major < 0 && $stability == "stable") {
+        echo "Invalid stability for major version $major ($stability)\n";
+        echo "Major versions before 1.0.0 cannot be marked as stable\n";
+        usage();
+    }
+}
+
+function get_files() {
+    $dirs = array(
+      'src' => array(
+        "pdlib.cc",
+        "pdlib.php",
+        "php_pdlib.h",
+        "config.{m4,w32}",
+        "src/*.{cc,h}",
+        "dlib/**/*.{cpp,h}",
+        "dlib/**/**/*.{cpp,h}",
+        "dlib/**/**/**/*.{cpp,h}",
+      ),
+      'test' => array(
+        "tests/*.{phpt}",
+      ),
+      'doc' => array(
+        "README*",
+        "LICENSE",
+        "CREDITS",
+      )
+    );
+    $files = array();
+    foreach($dirs as $role => $patterns) {
+        foreach ($patterns as $pattern) {
+            foreach (glob($pattern, GLOB_BRACE) as $file) {
+                $files[$file] = $role;
+            }
+        }
+    }
+    ksort($files);
+    return $files;
+}
+
+function format_open_dir($dir, $tab) {
+    return sprintf('%s<dir name="%s">', str_repeat(" ", $tab), $dir);
+}
+function format_close_dir($tab) {
+    return sprintf("%s</dir>", str_repeat(" ", $tab));
+}
+function format_file($filename, $tab, $role) {
+    return sprintf('%s<file role="%s" name="%s"/>', str_repeat(" ", $tab+1), $role, $filename);
+}
+function make_tree($files) {
+    $retval = array();
+    $lastdir = ".";
+    $tab = 2;
+
+    $retval[] = format_open_dir("/", $tab);
+    foreach($files as $file => $role) {
+        $dir = dirname($file);
+        $filename = basename($file);
+        if ($dir != $lastdir) {
+            $currdir = explode("/", $dir);
+            $prevdir = explode("/", $lastdir);
+            foreach($currdir as $n => $d) {
+                if (isset($prevdir[$n]) && $prevdir[$n] == $d) {
+                    /* In case we are shorter then previous */
+                    $n++;
+                    continue;
+                }
+                break;
+            }
+            if ($lastdir != ".") {
+                foreach(array_reverse(array_slice($prevdir, $n)) as $close) {
+                    $retval[] = format_close_dir($tab--);
+                }
+            }
+            foreach(array_slice($currdir, $n) as $open) {
+                $retval[] = format_open_dir($open, ++$tab);
+            }
+        }
+        $retval[] = format_file($filename, $tab, $role);
+        $lastdir = $dir;
+    }
+    foreach(array_reverse(explode("/", $lastdir)) as $close) {
+        $retval[] = format_close_dir($tab--);
+    }
+    $retval[] = format_close_dir($tab);
+
+    return $retval;
+}
+
+function usage() {
+    global $argv;
+
+    echo "Usage:\n\t";
+    echo $argv[0], " <version> <stability>\n";
+
+    exit(1);
+}
+
+if ($argc != 3) {
+    usage();
+}
+
+$VERSION = $argv[1];
+$STABILITY = $argv[2];
+
+/* 0.x.y. are developmental releases and cannot be stable */
+if ((int)$VERSION < 1) {
+    $STABILITY = "devel";
+}
+
+/* A release candidate is a "beta" stability in terms of PECL */
+if (stristr($VERSION, '-rc') !== false) {
+    $STABILITY = "beta";
+}
+
+verify_stability($STABILITY);
+verify_version($VERSION, $STABILITY);
+
+$currtime = new DateTime('now', new DateTimeZone('UTC'));
+$DATE = $currtime->format('Y-m-d');
+$TIME = $currtime->format('H:i:s');
+
+$TREE = make_tree(get_files());
+
+$contents = file_get_contents(__DIR__ . "/package.xml.in");
+
+$REPLACE = array(
+    "%RELEASE_DATE%" => $DATE,
+    "%RELEASE_TIME%" => $TIME,
+    "%RELEASE_VERSION%" => $VERSION,
+    "%RELEASE_STABILITY%" => $STABILITY,
+    "%RELEASE_FILES%" => join("\n", $TREE),
+);
+
+$contents = str_replace(array_keys($REPLACE), array_values($REPLACE), $contents);
+
+file_put_contents(__DIR__ . "/../package.xml", $contents);
+echo "Wrote package.xml\n";
+