Copy CA certificate when compiling for win32

ssl version of msys2 does not use the default certificate of Windows but only
the certificates bundled in OPENSSLDIR.

issue6771
review38721002

bin/tryton

@@ -23,6 +23,10 @@ if hasattr(sys, 'frozen'):
             etc, 'gtk-2.0', 'gdk-pixbuf.loaders')
     os.environ['GTK_IM_MODULE_FILE'] = os.path.join(
             etc, 'gtk-2.0', 'gtk.immodules')
+    os.environ.setdefault('SSL_CERT_FILE',
+        os.path.join(etc, 'ssl', 'cert.pem'))
+    os.environ.setdefault('SSL_CERT_DIR',
+        os.path.join(etc, 'ssl', 'certs'))
 
 
 # Disable dbusmenu to show second menu in tabs

setup-freeze.py

@@ -20,6 +20,7 @@ if sys.platform == 'win32':
     include_files.extend([
         (os.path.join(sys.prefix, 'share/themes/MS-Windows'),
             'share/themes/MS-Windows'),
+        (os.path.join(sys.prefix, 'ssl'), 'etc/ssl'),
         ])
     dll_paths = os.getenv('PATH', os.defpath).split(os.pathsep)
     required_dlls = [