Add a script to create macOS installer packages.
diff --git a/packaging/createmsi.py b/packaging/createmsi.py
old mode 100644
new mode 100755
index 1136681..fa1e644
--- a/packaging/createmsi.py
+++ b/packaging/createmsi.py
@@ -39,6 +39,48 @@
     '''
     return str(uuid.uuid4()).upper()
 
+def get_all_modules_from_dir(dirname):
+    '''
+    Get all modules required for Meson build MSI package
+    from directories.
+    '''
+    modname = os.path.basename(dirname)
+    modules = [os.path.splitext(os.path.split(x)[1])[0] for x in glob(os.path.join(dirname, '*'))]
+    modules = ['mesonbuild.' + modname + '.' + x for x in modules if not x.startswith('_')]
+    return modules
+
+def get_more_modules():
+    '''
+        Getter for missing Modules.
+        Python packagers want to be minimal and only copy the things
+        that they can see that being used. They are blind to many things.
+    '''
+    return ['distutils.archive_util',
+            'distutils.cmd',
+            'distutils.config',
+            'distutils.core',
+            'distutils.debug',
+            'distutils.dep_util',
+            'distutils.dir_util',
+            'distutils.dist',
+            'distutils.errors',
+            'distutils.extension',
+            'distutils.fancy_getopt',
+            'distutils.file_util',
+            'distutils.spawn',
+            'distutils.util',
+            'distutils.version',
+            'distutils.command.build_ext',
+            'distutils.command.build',
+            'filecmp',
+            ]
+
+def get_modules():
+    modules = get_all_modules_from_dir('mesonbuild/modules')
+    modules += get_all_modules_from_dir('mesonbuild/scripts')
+    modules += get_more_modules()
+    return modules
+
 class Node:
     '''
        Node to hold path and directory values
@@ -107,44 +149,6 @@
         for s_d in self.staging_dirs:
             self.feature_components[s_d] = []
 
-    @staticmethod
-    def get_all_modules_from_dir(dirname):
-        '''
-           Get all modules required for Meson build MSI package
-           from directories.
-        '''
-        modname = os.path.basename(dirname)
-        modules = [os.path.splitext(os.path.split(x)[1])[0] for x in glob(os.path.join(dirname, '*'))]
-        modules = ['mesonbuild.' + modname + '.' + x for x in modules if not x.startswith('_')]
-        return modules
-
-    @staticmethod
-    def get_more_modules():
-        '''
-           Getter for missing Modules.
-           Python packagers want to be minimal and only copy the things
-           that they can see that being used. They are blind to many things.
-        '''
-        return ['distutils.archive_util',
-                'distutils.cmd',
-                'distutils.config',
-                'distutils.core',
-                'distutils.debug',
-                'distutils.dep_util',
-                'distutils.dir_util',
-                'distutils.dist',
-                'distutils.errors',
-                'distutils.extension',
-                'distutils.fancy_getopt',
-                'distutils.file_util',
-                'distutils.spawn',
-                'distutils.util',
-                'distutils.version',
-                'distutils.command.build_ext',
-                'distutils.command.build',
-                'filecmp',
-                ]
-
     def build_dist(self):
         '''
            Build dist file from PyInstaller info
@@ -153,9 +157,7 @@
             if os.path.exists(sdir):
                 shutil.rmtree(sdir)
         main_stage, ninja_stage = self.staging_dirs
-        modules = self.get_all_modules_from_dir('mesonbuild/modules')
-        modules += self.get_all_modules_from_dir('mesonbuild/scripts')
-        modules += self.get_more_modules()
+        modules = get_modules()
 
         pyinstaller = shutil.which('pyinstaller')
         if not pyinstaller:
diff --git a/packaging/createpkg.py b/packaging/createpkg.py
new file mode 100755
index 0000000..ab3c51c
--- /dev/null
+++ b/packaging/createpkg.py
@@ -0,0 +1,117 @@
+#!/usr/bin/env python3
+
+# Copyright 2017-2021 The Meson development team
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import subprocess
+import shutil, sys, os
+
+import xml.etree.ElementTree as ET
+
+sys.path.append(os.getcwd())
+from mesonbuild import coredata
+
+from packaging.createmsi import get_modules
+
+class PkgGenerator:
+
+    def __init__(self):
+        self.pkg_dir = 'macpkg'
+        self.sharedir = os.path.join(self.pkg_dir, 'usr/local/share')
+        self.bindir = os.path.join(self.pkg_dir, 'usr/local/bin')
+        self.product_name = 'Meson Build System'
+        self.identifier = 'com.mesonbuild.meson'
+        self.version = coredata.version.replace('dev', '')
+        self.mesonstashdir = os.path.join(self.sharedir, f'meson-{self.version}')
+        self.pkgname = f'meson.pkg'
+        self.productname = f'meson-{self.version}.pkg'
+        self.distribution_file = 'meson-distribution.xml'
+        self.resourcedir = 'packaging/macpages'
+
+    def build_dist(self):
+        if os.path.exists(self.pkg_dir):
+            shutil.rmtree(self.pkg_dir)
+        os.mkdir(self.pkg_dir)
+        pyinstaller_bin = '/Users/jpakkane/Library/Python/3.8/bin/pyinstaller'
+        pyinst_cmd = [pyinstaller_bin,
+                      '--clean',
+                      '--distpath',
+                      self.pkg_dir]
+        for m in get_modules():
+            pyinst_cmd += ['--hidden-import', m]
+        pyinst_cmd += ['meson.py']
+        subprocess.check_call(pyinst_cmd    )
+        tmpdir = os.path.join(self.pkg_dir, 'meson')
+        shutil.move(tmpdir, self.mesonstashdir)
+        os.makedirs(self.bindir)
+        ln_base = os.path.relpath(self.mesonstashdir, self.bindir)
+        ninja_bin = shutil.which('ninja')
+        assert(ninja_bin)
+        shutil.copy(ninja_bin, self.bindir)
+        subprocess.check_call(['strip', os.path.join(self.bindir, 'ninja')])
+        os.symlink(os.path.join(ln_base, 'meson'), os.path.join(self.bindir, 'meson'))
+
+    def build_package(self):
+        subprocess.check_call(['pkgbuild',
+                                '--root',
+                                self.pkg_dir,
+                                '--identifier',
+                                self.identifier,
+                                self.pkgname])
+        self.generate_distribution()
+        subprocess.check_call(['productbuild',
+                               '--distribution',
+                               self.distribution_file,
+                               '--resources',
+                               self.resourcedir,
+                               self.productname])
+
+    def generate_distribution(self):
+        root = ET.Element('installer-gui-script', {'minSpecVersion': '1'})
+        ET.SubElement(root, 'welcome', {'file': 'welcome.html',
+                                        'mime-type': 'text/html'})
+        ET.SubElement(root, 'license', {'file': 'license.html',
+                                        'mime-type': 'text/html'})
+        ET.SubElement(root, 'conclusion', {'file': 'conclusion.html',
+                                        'mime-type': 'text/html'})
+        ET.SubElement(root, 'pkg-ref', {'id': self.identifier})
+        ET.SubElement(root, 'options', {'customize': 'never',
+                                        'require-scripts': 'false',
+                                        'hostArhcitectures': 'x86_64,arm64'})
+        choices_outline = ET.SubElement(root, 'choices-outline')
+        line = ET.SubElement(choices_outline, 'line', {'choice': 'default'})
+        ET.SubElement(line, 'line', {'choice': self.identifier})
+        ET.SubElement(root, 'choice', {'id': 'default'})
+        choice = ET.SubElement(root, 'choice', {'id': self.identifier, 'visible': 'false'})
+        ET.SubElement(choice, 'pkg-ref', {'id': self.identifier})
+        ET.SubElement(root, 'pkg-ref', {'id': self.identifier,
+                                        'version': '0',#self.version,
+                                        'onConclusion': 'none'}).text = self.pkgname
+        ET.ElementTree(root).write(self.distribution_file, encoding='utf-8', xml_declaration=True)
+        # ElementTree can not do prettyprinting so do it manually
+        import xml.dom.minidom
+        doc = xml.dom.minidom.parse(self.distribution_file)
+        with open(self.distribution_file, 'w') as open_file:
+            open_file.write(doc.toprettyxml())
+
+
+if __name__ == '__main__':
+    if not os.path.exists('meson.py'):
+        sys.exit(print('Run me in the top level source dir.'))
+    subprocess.check_call(['pip3', 'install', '--user', '--upgrade', 'pyinstaller'])
+
+    pg = PkgGenerator()
+    pg.build_dist()
+    pg.build_package()
+
diff --git a/packaging/macpages/English.lproj/conclusion.html b/packaging/macpages/English.lproj/conclusion.html
new file mode 100644
index 0000000..0522455
--- /dev/null
+++ b/packaging/macpages/English.lproj/conclusion.html
@@ -0,0 +1,24 @@
+<html>
+  <head>
+  </head>
+  <body>
+
+    <h1>Install finished</h1>
+
+    <p>The Meson build system is now installed. Note that Meson does not
+      provide any GUI applications, it is only usable from the command
+      line. You can verify if your installation of Meson is working by
+      running the following command in a terminal
+    </p>
+
+    <pre>
+      $ meson --version
+    </pre>
+
+    <p>If the system reports that the program could not be found
+      you might need to edit your configuration files so
+      that <code>/usr/local/bin</code> is in your path.
+    </p>
+
+  </body>
+</html>
diff --git a/packaging/macpages/English.lproj/license.html b/packaging/macpages/English.lproj/license.html
new file mode 100644
index 0000000..235e582
--- /dev/null
+++ b/packaging/macpages/English.lproj/license.html
@@ -0,0 +1,209 @@
+<html>
+  <head>
+  </head>
+  <body>
+    <pre>
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+  <pre>
+  </body>
+</html>
diff --git a/packaging/macpages/English.lproj/welcome.html b/packaging/macpages/English.lproj/welcome.html
new file mode 100644
index 0000000..3832223
--- /dev/null
+++ b/packaging/macpages/English.lproj/welcome.html
@@ -0,0 +1,12 @@
+<html>
+  <head>
+  </head>
+  <body>
+
+  <h1>Meson build system installer</h1>
+
+  <p> This package will install the command line tools of Meson to
+  this computer.
+  </p>
+  </body>
+</html>