Issue #1258 - Part 8: Ifdef MailNews OAuth2 Support

Use --disable-mailnews-oauth2 to exclude it. Confvars won't be respected.

27 files changed, 193 insertions, 23 deletions

diff --git a/build/moz.configure/old.configure b/build/moz.configure/old.configure
index d6e8a287d..65add5cdc 100644
--- a/build/moz.configure/old.configure
+++ b/build/moz.configure/old.configure
@@ -308,6 +308,7 @@ def old_configure_options(*options):
     '--enable-calendar',
     '--enable-incomplete-external-linkage',
     '--enable-mailnews',
+    '--enable-mailnews-oauth2',
     
     # Below are configure flags used by Pale Moon
     '--disable-browser-statusbar',
diff --git a/mailnews/base/prefs/content/accountcreation/accountConfig.js b/mailnews/base/prefs/content/accountcreation/accountConfig.js
index 3a757d8ee..752c72624 100644
--- a/mailnews/base/prefs/content/accountcreation/accountConfig.js
+++ b/mailnews/base/prefs/content/accountcreation/accountConfig.js
@@ -50,8 +50,10 @@ AccountConfig.prototype =
    */
   incomingAlternatives : null,
   outgoingAlternatives : null,
+#ifdef MOZ_MAILNEWS_OAUTH2
   // OAuth2 configuration, if needed.
   oauthSettings : null,
+#endif
   // just an internal string to refer to this. Do not show to user.
   id : null,
   // who created the config.
diff --git a/mailnews/base/prefs/content/accountcreation/createInBackend.js b/mailnews/base/prefs/content/accountcreation/createInBackend.js
index d959c3ae9..cd984fd3c 100644
--- a/mailnews/base/prefs/content/accountcreation/createInBackend.js
+++ b/mailnews/base/prefs/content/accountcreation/createInBackend.js
@@ -28,10 +28,12 @@ function createAccountInBackend(config)
   if (config.rememberPassword && config.incoming.password.length)
     rememberPassword(inServer, config.incoming.password);
 
+#ifdef MOZ_MAILNEWS_OAUTH2
   if (inServer.authMethod == Ci.nsMsgAuthMethod.OAuth2) {
     inServer.setCharValue("oauth2.scope", config.oauthSettings.scope);
     inServer.setCharValue("oauth2.issuer", config.oauthSettings.issuer);
   }
+#endif
 
   // SSL
   if (config.incoming.socketType == 1) // plain
@@ -107,6 +109,7 @@ function createAccountInBackend(config)
         rememberPassword(outServer, config.incoming.password);
     }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
     if (outServer.authMethod == Ci.nsMsgAuthMethod.OAuth2) {
       let pref = "mail.smtpserver." + outServer.key + ".";
       Services.prefs.setCharPref(pref + "oauth2.scope",
@@ -114,6 +117,7 @@ function createAccountInBackend(config)
       Services.prefs.setCharPref(pref + "oauth2.issuer",
                                  config.oauthSettings.issuer);
     }
+#endif
 
     if (config.outgoing.socketType == 1) // no SSL
       outServer.socketType = Ci.nsMsgSocketType.plain;
diff --git a/mailnews/base/prefs/content/accountcreation/emailWizard.js b/mailnews/base/prefs/content/accountcreation/emailWizard.js
index b4e6854da..389feab6c 100644
--- a/mailnews/base/prefs/content/accountcreation/emailWizard.js
+++ b/mailnews/base/prefs/content/accountcreation/emailWizard.js
@@ -6,7 +6,9 @@
 Components.utils.import("resource:///modules/mailServices.js");
 Components.utils.import("resource://gre/modules/Services.jsm");
 Components.utils.import("resource:///modules/hostnameUtils.jsm");
+#ifdef MOZ_MAILNEWS_OAUTH2
 Components.utils.import("resource://gre/modules/OAuth2Providers.jsm");
+#endif
 
 /**
  * This is the dialog opened by menu File | New account | Mail... .
@@ -184,7 +186,9 @@ EmailConfigWizard.prototype =
         "authPasswordEncrypted");
     setLabelFromStringBundle("in-authMethod-kerberos", "authKerberos");
     setLabelFromStringBundle("in-authMethod-ntlm", "authNTLM");
+#ifdef MOZ_MAILNEWS_OAUTH2
     setLabelFromStringBundle("in-authMethod-oauth2", "authOAuth2");
+#endif
     setLabelFromStringBundle("out-authMethod-no", "authNo");
     setLabelFromStringBundle("out-authMethod-password-cleartext",
         "authPasswordCleartextViaSSL"); // will warn about insecure later
@@ -1014,7 +1018,11 @@ EmailConfigWizard.prototype =
     e("incoming_ssl").value = sanitize.enum(config.incoming.socketType,
                                             [ 0, 1, 2, 3 ], 0);
     e("incoming_authMethod").value = sanitize.enum(config.incoming.auth,
+#ifdef MOZ_MAILNEWS_OAUTH2
                                                    [ 0, 3, 4, 5, 6, 10 ], 0);
+#else
+                                                   [ 0, 3, 4, 5, 6 ], 0);
+#endif
     e("incoming_username").value = config.incoming.username;
     if (config.incoming.port) {
       e("incoming_port").value = config.incoming.port;
@@ -1023,6 +1031,7 @@ EmailConfigWizard.prototype =
     }
     this.fillPortDropdown(config.incoming.type);
 
+#ifdef MOZ_MAILNEWS_OAUTH2
     // If the hostname supports OAuth2 and imap is enabled, enable OAuth2.
     let iDetails = OAuth2Providers.getHostnameDetails(config.incoming.hostname);
     gEmailWizardLogger.info("OAuth2 details for incoming hostname " +
@@ -1035,6 +1044,7 @@ EmailConfigWizard.prototype =
       // store them in the base configuration.
       this._currentConfig.oauthSettings = config.oauthSettings;
     }
+#endif
 
     // outgoing server
     e("outgoing_hostname").value = config.outgoing.hostname;
@@ -1052,6 +1062,7 @@ EmailConfigWizard.prototype =
       this.adjustOutgoingPortToSSLAndProtocol(config);
     }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
     // If the hostname supports OAuth2 and imap is enabled, enable OAuth2.
     let oDetails = OAuth2Providers.getHostnameDetails(config.outgoing.hostname);
     gEmailWizardLogger.info("OAuth2 details for outgoing hostname " +
@@ -1064,6 +1075,7 @@ EmailConfigWizard.prototype =
       // store them in the base configuration.
       this._currentConfig.oauthSettings = config.oauthSettings;
     }
+#endif
 
     // populate fields even if existingServerKey, in case user changes back
     if (config.outgoing.existingServerKey) {
@@ -1614,10 +1626,12 @@ EmailConfigWizard.prototype =
         self._currentConfig.incoming.username = successfulConfig.incoming.username;
         self._currentConfig.outgoing.username = successfulConfig.outgoing.username;
 
+#ifdef MOZ_MAILNEWS_OAUTH2
         // We loaded dynamic client registration, fill this data back in to the
         // config set.
         if (successfulConfig.oauthSettings)
           self._currentConfig.oauthSettings = successfulConfig.oauthSettings;
+#endif
 
         self.finish();
       },
diff --git a/mailnews/base/prefs/content/accountcreation/emailWizard.xul b/mailnews/base/prefs/content/accountcreation/emailWizard.xul
index 0777d1651..261545671 100644
--- a/mailnews/base/prefs/content/accountcreation/emailWizard.xul
+++ b/mailnews/base/prefs/content/accountcreation/emailWizard.xul
@@ -309,7 +309,9 @@
                 <menuitem id="in-authMethod-password-encrypted" value="4"/>
                 <menuitem id="in-authMethod-kerberos" value="5"/>
                 <menuitem id="in-authMethod-ntlm" value="6"/>
+#ifdef MOZ_MAILNEWS_OAUTH2
                 <menuitem id="in-authMethod-oauth2" value="10" hidden="true"/>
+#endif
               </menupopup>
             </menulist>
           </row>
@@ -359,7 +361,9 @@
                 <menuitem id="out-authMethod-password-encrypted" value="4"/>
                 <menuitem id="out-authMethod-kerberos" value="5"/>
                 <menuitem id="out-authMethod-ntlm" value="6"/>
+#ifdef MOZ_MAILNEWS_OAUTH2
                 <menuitem id="out-authMethod-oauth2" value="10" hidden="true"/>
+#endif
               </menupopup>
             </menulist>
           </row>
diff --git a/mailnews/base/prefs/content/accountcreation/guessConfig.js b/mailnews/base/prefs/content/accountcreation/guessConfig.js
index 755c499cd..9a44f7904 100644
--- a/mailnews/base/prefs/content/accountcreation/guessConfig.js
+++ b/mailnews/base/prefs/content/accountcreation/guessConfig.js
@@ -60,11 +60,13 @@ function guessConfig(domain, progressCallback, successCallback, errorCallback,
   assert(typeof(successCallback) == "function", "need successCallback");
   assert(typeof(errorCallback) == "function", "need errorCallback");
 
+#ifdef MOZ_MAILNEWS_OAUTH2
   // Servers that we know enough that they support OAuth2 do not need guessing.
   if (resultConfig.incoming.auth == Ci.nsMsgAuthMethod.OAuth2) {
     successCallback(resultConfig);
     return null;
   }
+#endif
 
   if (!resultConfig)
     resultConfig = new AccountConfig();
diff --git a/mailnews/base/prefs/content/accountcreation/readFromXML.js b/mailnews/base/prefs/content/accountcreation/readFromXML.js
index c7e796f5f..4ef13ec1d 100644
--- a/mailnews/base/prefs/content/accountcreation/readFromXML.js
+++ b/mailnews/base/prefs/content/accountcreation/readFromXML.js
@@ -95,7 +95,10 @@ function readFromXML(clientConfigXML)
                 "secure" : Ci.nsMsgAuthMethod.passwordEncrypted,
                 "GSSAPI" : Ci.nsMsgAuthMethod.GSSAPI,
                 "NTLM" : Ci.nsMsgAuthMethod.NTLM,
-                "OAuth2" : Ci.nsMsgAuthMethod.OAuth2 });
+#ifdef MOZ_MAILNEWS_OAUTH2
+                "OAuth2" : Ci.nsMsgAuthMethod.OAuth2
+#endif
+              });
           break; // take first that we support
         } catch (e) { exception = e; }
       }
@@ -176,7 +179,9 @@ function readFromXML(clientConfigXML)
                 "secure" : Ci.nsMsgAuthMethod.passwordEncrypted,
                 "GSSAPI" : Ci.nsMsgAuthMethod.GSSAPI,
                 "NTLM" : Ci.nsMsgAuthMethod.NTLM,
+#ifdef MOZ_MAILNEWS_OAUTH2
                 "OAuth2" : Ci.nsMsgAuthMethod.OAuth2,
+#endif
               });
 
           break; // take first that we support
diff --git a/mailnews/base/prefs/content/accountcreation/verifyConfig.js b/mailnews/base/prefs/content/accountcreation/verifyConfig.js
index a2afbdad8..26fa7967e 100644
--- a/mailnews/base/prefs/content/accountcreation/verifyConfig.js
+++ b/mailnews/base/prefs/content/accountcreation/verifyConfig.js
@@ -30,7 +30,9 @@
  */
 
 Components.utils.import("resource:///modules/mailServices.js");
+#ifdef MOZ_MAILNEWS_OAUTH2
 Components.utils.import("resource://gre/modules/OAuth2Providers.jsm");
+#endif
 
 if (typeof gEmailWizardLogger == "undefined") {
   Cu.import("resource:///modules/gloda/log4moz.js");
@@ -74,6 +76,7 @@ function verifyConfig(config, alter, msgWindow, successCallback, errorCallback)
                            config.incoming.auth);
   inServer.authMethod = config.incoming.auth;
 
+#ifdef MOZ_MAILNEWS_OAUTH2
   try {
     // Lookup issuer if needed.
     if (config.incoming.auth == Ci.nsMsgAuthMethod.OAuth2 ||
@@ -100,6 +103,9 @@ function verifyConfig(config, alter, msgWindow, successCallback, errorCallback)
 
     if (inServer.password ||
         inServer.authMethod == Ci.nsMsgAuthMethod.OAuth2)
+#else
+    if (inServer.password)
+#endif
       verifyLogon(config, inServer, alter, msgWindow,
                   successCallback, errorCallback);
     else {
diff --git a/mailnews/base/prefs/content/am-server.js b/mailnews/base/prefs/content/am-server.js
index e3c2d2b09..01b22e4ae 100644
--- a/mailnews/base/prefs/content/am-server.js
+++ b/mailnews/base/prefs/content/am-server.js
@@ -31,7 +31,9 @@ function onInit(aPageId, aServerId)
     setupImapDeleteUI(aServerId);
 
   // TLS Cert (External) and OAuth2 are only supported on IMAP.
+#ifdef MOZ_MAILNEWS_OAUTH2
   document.getElementById("authMethod-oauth2").hidden = (serverType != "imap");
+#endif
   document.getElementById("authMethod-external").hidden = (serverType != "imap");
 
   // "STARTTLS, if available" is vulnerable to MITM attacks so we shouldn't
@@ -83,7 +85,9 @@ function initServerType()
   setLabelFromStringBundle("authMethod-kerberos", "authKerberos");
   setLabelFromStringBundle("authMethod-external", "authExternal");
   setLabelFromStringBundle("authMethod-ntlm", "authNTLM");
+#ifdef MOZ_MAILNEWS_OAUTH2
   setLabelFromStringBundle("authMethod-oauth2", "authOAuth2");
+#endif
   setLabelFromStringBundle("authMethod-anysecure", "authAnySecure");
   setLabelFromStringBundle("authMethod-any", "authAny");
   setLabelFromStringBundle("authMethod-password-encrypted",
diff --git a/mailnews/base/prefs/content/am-server.xul b/mailnews/base/prefs/content/am-server.xul
index f52aef1cc..7828e4cf4 100644
--- a/mailnews/base/prefs/content/am-server.xul
+++ b/mailnews/base/prefs/content/am-server.xul
@@ -139,7 +139,9 @@
                 <menuitem id="authMethod-kerberos" value="5"/>
                 <menuitem id="authMethod-ntlm" value="6"/>
                 <menuitem id="authMethod-external" value="7"/>
+#ifdef MOZ_MAILNEWS_OAUTH2
                 <menuitem id="authMethod-oauth2" value="10"/>
+#endif
                 <menuitem id="authMethod-anysecure" value="8"/>
                 <menuitem id="authMethod-any" value="9"/>
               </menupopup>
diff --git a/mailnews/base/prefs/content/am-smtp.js b/mailnews/base/prefs/content/am-smtp.js
index f5e9ab38c..f107a32ae 100644
--- a/mailnews/base/prefs/content/am-smtp.js
+++ b/mailnews/base/prefs/content/am-smtp.js
@@ -140,9 +140,11 @@ var gSmtpServerListWindow =
                   ? "authPasswordCleartextViaSSL"
                   : "authPasswordCleartextInsecurely";
         break;
+#ifdef MOZ_MAILNEWS_OAUTH2
       case AuthMethod.OAuth2:
         authStr = "authOAuth2";
         break;
+#endif
       default:
         // leave empty
         Components.utils.reportError("Warning: unknown value for smtpserver... authMethod: " +
diff --git a/mailnews/base/prefs/content/smtpEditOverlay.js b/mailnews/base/prefs/content/smtpEditOverlay.js
index 54590e1b2..d8d216065 100644
--- a/mailnews/base/prefs/content/smtpEditOverlay.js
+++ b/mailnews/base/prefs/content/smtpEditOverlay.js
@@ -53,7 +53,9 @@ function initSmtpSettings(server) {
         "authPasswordCleartextInsecurely");
     setLabelFromStringBundle("authMethod-kerberos", "authKerberos");
     setLabelFromStringBundle("authMethod-ntlm", "authNTLM");
+#ifdef MOZ_MAILNEWS_OAUTH2
     setLabelFromStringBundle("authMethod-oauth2", "authOAuth2");
+#endif
     setLabelFromStringBundle("authMethod-anysecure", "authAnySecure");
     setLabelFromStringBundle("authMethod-any", "authAny");
 
diff --git a/mailnews/base/prefs/content/smtpEditOverlay.xul b/mailnews/base/prefs/content/smtpEditOverlay.xul
index f78916d2a..0bc900a3d 100644
--- a/mailnews/base/prefs/content/smtpEditOverlay.xul
+++ b/mailnews/base/prefs/content/smtpEditOverlay.xul
@@ -103,7 +103,9 @@
                 <menuitem id="authMethod-password-encrypted" value="4"/>
                 <menuitem id="authMethod-kerberos" value="5"/>
                 <menuitem id="authMethod-ntlm" value="6"/>
+#ifdef MOZ_MAILNEWS_OAUTH2
                 <menuitem id="authMethod-oauth2" value="10"/>
+#endif
                 <menuitem id="authMethod-anysecure" value="8"/>
                 <menuitem id="authMethod-any" value="9"/>
               </menupopup>
diff --git a/mailnews/base/public/moz.build b/mailnews/base/public/moz.build
index aaedcd2bb..e38c223e4 100644
--- a/mailnews/base/public/moz.build
+++ b/mailnews/base/public/moz.build
@@ -3,11 +3,13 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+if CONFIG['MOZ_MAILNEWS_OAUTH2']:
+  XPIDL_SOURCES += ['msgIOAuth2Module.idl']
+
 XPIDL_SOURCES += [
     'MailNewsTypes2.idl',
     'mozINewMailListener.idl',
     'mozINewMailNotificationService.idl',
-    'msgIOAuth2Module.idl',
     'nsICopyMessageListener.idl',
     'nsICopyMsgStreamListener.idl',
     'nsIFolderListener.idl',
diff --git a/mailnews/base/src/moz.build b/mailnews/base/src/moz.build
index b84839e9e..55dbab154 100644
--- a/mailnews/base/src/moz.build
+++ b/mailnews/base/src/moz.build
@@ -68,12 +68,15 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
 EXTRA_COMPONENTS += [
     'folderLookupService.js',
     'msgAsyncPrompter.js',
-    'msgBase.manifest',
-    'msgOAuth2Module.js',
     'newMailNotificationService.js',
     'nsMailNewsCommandLineHandler.js',
 ]
 
+if CONFIG['MOZ_MAILNEWS_OAUTH2']:
+    EXTRA_COMPONENTS += ['msgOAuth2Module.js']
+
+EXTRA_PP_COMPONENTS += ['msgBase.manifest']
+
 EXTRA_JS_MODULES += [
     'virtualFolderWrapper.js',
 ]
diff --git a/mailnews/base/src/msgBase.manifest b/mailnews/base/src/msgBase.manifest
index e7af18bdf..1753939b8 100644
--- a/mailnews/base/src/msgBase.manifest
+++ b/mailnews/base/src/msgBase.manifest
@@ -8,5 +8,7 @@ contract @mozilla.org/newMailNotificationService;1 {740880E6-E299-4165-B82F-DF1D
 category profile-after-change NewMailNotificationService @mozilla.org/newMailNotificationService;1 
 component {a30be08c-afc8-4fed-9af7-79778a23db23} folderLookupService.js
 contract @mozilla.org/mail/folder-lookup;1 {a30be08c-afc8-4fed-9af7-79778a23db23}
+#ifdef MOZ_MAILNEWS_OAUTH2
 component {b63d8e4c-bf60-439b-be0e-7c9f67291042} msgOAuth2Module.js
 contract @mozilla.org/mail/oauth2-module;1 {b63d8e4c-bf60-439b-be0e-7c9f67291042}
+#endif
\ No newline at end of file
diff --git a/mailnews/base/util/moz.build b/mailnews/base/util/moz.build
index 134a46ae1..0f1295ffe 100644
--- a/mailnews/base/util/moz.build
+++ b/mailnews/base/util/moz.build
@@ -60,13 +60,17 @@ EXTRA_JS_MODULES += [
     'mailnewsMigrator.js',
     'mailServices.js',
     'msgDBCacheManager.js',
-    'OAuth2.jsm',
-    'OAuth2Providers.jsm',
     'StringBundle.js',
     'templateUtils.js',
     'traceHelper.js',
 ]
 
+if CONFIG['MOZ_MAILNEWS_OAUTH2']:
+    EXTRA_JS_MODULES += [
+        'OAuth2.jsm',
+        'OAuth2Providers.jsm',
+    ]
+
 LOCAL_INCLUDES += [
   '/netwerk/base'
 ]
diff --git a/mailnews/compose/src/nsSmtpProtocol.cpp b/mailnews/compose/src/nsSmtpProtocol.cpp
index d525d3f7f..54d1e6f64 100644
--- a/mailnews/compose/src/nsSmtpProtocol.cpp
+++ b/mailnews/compose/src/nsSmtpProtocol.cpp
@@ -216,9 +216,17 @@ esmtp_value_encode(const char *addr)
 // END OF TEMPORARY HARD CODED FUNCTIONS
 ///////////////////////////////////////////////////////////////////////////////////////////
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 NS_IMPL_ISUPPORTS_INHERITED(nsSmtpProtocol, nsMsgAsyncWriteProtocol,
                             msgIOAuth2ModuleListener)
+#else
+NS_IMPL_ADDREF_INHERITED(nsSmtpProtocol, nsMsgAsyncWriteProtocol)
+NS_IMPL_RELEASE_INHERITED(nsSmtpProtocol, nsMsgAsyncWriteProtocol)
 
+NS_INTERFACE_MAP_BEGIN(nsSmtpProtocol)
+NS_INTERFACE_MAP_END_INHERITING(nsMsgAsyncWriteProtocol)
+// TODO: See if we can use NS_IMPL_ISUPPORTS_INHERITED: https://hg.mozilla.org/comm-central/diff/eae1195fde6d/mailnews/compose/src/nsSmtpProtocol.cpp
+#endif
 nsSmtpProtocol::nsSmtpProtocol(nsIURI * aURL)
     : nsMsgAsyncWriteProtocol(aURL)
 {
@@ -291,6 +299,7 @@ void nsSmtpProtocol::Initialize(nsIURI * aURL)
         smtpServer->GetSocketType(&m_prefSocketType);
         smtpServer->GetHelloArgument(getter_Copies(m_helloArgument));
 
+#ifdef MOZ_MAILNEWS_OAUTH2
         // Query for OAuth2 support. If the SMTP server preferences don't allow
         // for OAuth2, then don't carry around the OAuth2 module any longer
         // since we won't need it.
@@ -302,6 +311,7 @@ void nsSmtpProtocol::Initialize(nsIURI * aURL)
           if (!supportsOAuth)
             mOAuth2Support = nullptr;
         }
+#endif
     }
     InitPrefAuthMethods(authMethod);
 
@@ -794,9 +804,11 @@ nsresult nsSmtpProtocol::SendEhloResponse(nsIInputStream * inputStream, uint32_t
                                 CaseInsensitiveCompare) >= 0)
             SetFlag(SMTP_AUTH_EXTERNAL_ENABLED);
 
+#ifdef MOZ_MAILNEWS_OAUTH2
           if (responseLine.Find(NS_LITERAL_CSTRING("XOAUTH2"),
                                 CaseInsensitiveCompare) >= 0)
             SetFlag(SMTP_AUTH_OAUTH2_ENABLED);
+#endif
         }
         else if (StringBeginsWith(responseLine, NS_LITERAL_CSTRING("SIZE"), nsCaseInsensitiveCStringComparator()))
         {
@@ -891,9 +903,11 @@ void nsSmtpProtocol::InitPrefAuthMethods(int32_t authMethodPrefValue)
     case nsMsgAuthMethod::GSSAPI:
       m_prefAuthMethods = SMTP_AUTH_GSSAPI_ENABLED;
       break;
+#ifdef MOZ_MAILNEWS_OAUTH2
     case nsMsgAuthMethod::OAuth2:
       m_prefAuthMethods = SMTP_AUTH_OAUTH2_ENABLED;
       break;
+#endif
     case nsMsgAuthMethod::secure:
       m_prefAuthMethods = SMTP_AUTH_CRAM_MD5_ENABLED |
           SMTP_AUTH_GSSAPI_ENABLED |
@@ -912,14 +926,18 @@ void nsSmtpProtocol::InitPrefAuthMethods(int32_t authMethodPrefValue)
           SMTP_AUTH_LOGIN_ENABLED | SMTP_AUTH_PLAIN_ENABLED |
           SMTP_AUTH_CRAM_MD5_ENABLED | SMTP_AUTH_GSSAPI_ENABLED |
           SMTP_AUTH_NTLM_ENABLED | SMTP_AUTH_MSN_ENABLED |
+#ifdef MOZ_MAILNEWS_OAUTH2
           SMTP_AUTH_OAUTH2_ENABLED |
+#endif
           SMTP_AUTH_EXTERNAL_ENABLED;
       break;
   }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
   // Only enable OAuth2 support if we can do the lookup.
   if ((m_prefAuthMethods & SMTP_AUTH_OAUTH2_ENABLED) && !mOAuth2Support)
     m_prefAuthMethods &= ~SMTP_AUTH_OAUTH2_ENABLED;
+#endif
 
   NS_ASSERTION(m_prefAuthMethods != 0, "SMTP:InitPrefAuthMethods() failed");
 }
@@ -952,8 +970,10 @@ nsresult nsSmtpProtocol::ChooseAuthMethod()
     m_currentAuthMethod = SMTP_AUTH_NTLM_ENABLED;
   else if (SMTP_AUTH_MSN_ENABLED & availCaps)
     m_currentAuthMethod = SMTP_AUTH_MSN_ENABLED;
+#ifdef MOZ_MAILNEWS_OAUTH2
   else if (SMTP_AUTH_OAUTH2_ENABLED & availCaps)
     m_currentAuthMethod = SMTP_AUTH_OAUTH2_ENABLED;
+#endif
   else if (SMTP_AUTH_PLAIN_ENABLED & availCaps)
     m_currentAuthMethod = SMTP_AUTH_PLAIN_ENABLED;
   else if (SMTP_AUTH_LOGIN_ENABLED & availCaps)
@@ -1060,10 +1080,12 @@ nsresult nsSmtpProtocol::ProcessAuth()
   {
     m_nextState = SMTP_SEND_AUTH_LOGIN_STEP0;
   }
+#ifdef MOZ_MAILNEWS_OAUTH2
   else if (m_currentAuthMethod == SMTP_AUTH_OAUTH2_ENABLED)
   {
     m_nextState = SMTP_AUTH_OAUTH2_STEP;
   }
+#endif
   else // All auth methods failed
   {
     // show an appropriate error msg
@@ -1487,6 +1509,7 @@ nsresult nsSmtpProtocol::AuthLoginStep2()
   return static_cast<nsresult>(-1);
 }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 nsresult nsSmtpProtocol::AuthOAuth2Step1()
 {
   MOZ_ASSERT(mOAuth2Support, "Can't do anything without OAuth2 support");
@@ -1536,7 +1559,7 @@ nsresult nsSmtpProtocol::OnFailure(nsresult aError)
   m_nextState = SMTP_ERROR_DONE;
   return ProcessProtocolState(nullptr, nullptr, 0, 0);
 }
-
+#endif
 
 nsresult nsSmtpProtocol::SendMailResponse()
 {
@@ -2025,10 +2048,11 @@ nsresult nsSmtpProtocol::ProcessProtocolState(nsIURI * url, nsIInputStream * inp
         status = AuthLoginStep2();
         break;
 
+#ifdef MOZ_MAILNEWS_OAUTH2
       case SMTP_AUTH_OAUTH2_STEP:
         status = AuthOAuth2Step1();
         break;
-
+#endif
 
       case SMTP_SEND_MAIL_RESPONSE:
         if (inputStream == nullptr)
@@ -2086,11 +2110,13 @@ nsresult nsSmtpProtocol::ProcessProtocolState(nsIURI * url, nsIInputStream * inp
         nsMsgAsyncWriteProtocol::CloseSocket();
         return NS_OK; /* final end */
 
+#ifdef MOZ_MAILNEWS_OAUTH2
       // This state means we're going into an async loop and waiting for
       // something (say auth) to happen. ProcessProtocolState will be
       // retriggered when necessary.
       case SMTP_SUSPENDED:
         return NS_OK;
+#endif
 
       default: /* should never happen !!! */
         m_nextState = SMTP_ERROR_DONE;
diff --git a/mailnews/compose/src/nsSmtpProtocol.h b/mailnews/compose/src/nsSmtpProtocol.h
index c23b35dda..c5dba76e3 100644
--- a/mailnews/compose/src/nsSmtpProtocol.h
+++ b/mailnews/compose/src/nsSmtpProtocol.h
@@ -7,7 +7,9 @@
 #define nsSmtpProtocol_h___
 
 #include "mozilla/Attributes.h"
+#ifdef MOZ_MAILNEWS_OAUTH2
 #include "msgIOAuth2Module.h"
+#endif
 #include "nsMsgProtocol.h"
 #include "nsIStreamListener.h"
 #include "nsISmtpUrl.h"
@@ -19,8 +21,10 @@
 #include "nsCOMPtr.h"
 #include "nsTArray.h"
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 class nsIVariant;
 class nsIWritableVariant;
+#endif
 
  /* states of the machine
  */
@@ -50,9 +54,11 @@ SMTP_AUTH_PROCESS_STATE,                            // 21
 SMTP_AUTH_CRAM_MD5_CHALLENGE_RESPONSE,              // 22
 SMTP_SEND_AUTH_GSSAPI_FIRST,                        // 23
 SMTP_SEND_AUTH_GSSAPI_STEP,                         // 24
+#ifdef MOZ_MAILNEWS_OAUTH2
 SMTP_SUSPENDED,                                     // 25
 SMTP_AUTH_OAUTH2_STEP,                              // 26
 SMTP_AUTH_OAUTH2_RESPONSE,                          // 27
+#endif
 } SmtpState;
 
 // State Flags (Note, I use the word state in terms of storing 
@@ -75,6 +81,7 @@ SMTP_AUTH_OAUTH2_RESPONSE,                          // 27
 #define SMTP_AUTH_CRAM_MD5_ENABLED      0x00002000
 #define SMTP_AUTH_NTLM_ENABLED          0x00004000
 #define SMTP_AUTH_MSN_ENABLED           0x00008000
+#ifdef MOZ_MAILNEWS_OAUTH2
 #define SMTP_AUTH_OAUTH2_ENABLED        0x00010000
 // sum of all above auth mechanisms
 #define SMTP_AUTH_ANY                   0x0001FF00
@@ -82,13 +89,24 @@ SMTP_AUTH_OAUTH2_RESPONSE,                          // 27
 #define SMTP_AUTH                       0x00020000
 // No login necessary (pref)
 #define SMTP_AUTH_NONE_ENABLED          0x00040000
+#else
+#define SMTP_AUTH_ANY                   0x0000FF00
+#define SMTP_AUTH                       0x00010000
+#define SMTP_AUTH_NONE_ENABLED          0x00020000
+#endif
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 class nsSmtpProtocol : public nsMsgAsyncWriteProtocol,
                        public msgIOAuth2ModuleListener
+#else
+class nsSmtpProtocol : public nsMsgAsyncWriteProtocol
+#endif
 {
 public:
     NS_DECL_ISUPPORTS_INHERITED
+#ifdef MOZ_MAILNEWS_OAUTH2
     NS_DECL_MSGIOAUTH2MODULELISTENER
+#endif
 
     // Creating a protocol instance requires the URL which needs to be run.
     nsSmtpProtocol(nsIURI * aURL);
@@ -182,7 +200,9 @@ private:
     nsresult AuthLoginStep1();
     nsresult AuthLoginStep2();
     nsresult AuthLoginResponse(nsIInputStream * stream, uint32_t length);
+#ifdef MOZ_MAILNEWS_OAUTH2
     nsresult AuthOAuth2Step1();
+#endif
 
     nsresult SendTLSResponse();
     nsresult SendMailResponse();
@@ -217,9 +237,11 @@ private:
     int32_t m_failedAuthMethods; // ditto
     int32_t m_currentAuthMethod; // exactly one capability flag, or 0
 
+#ifdef MOZ_MAILNEWS_OAUTH2
     // The support module for OAuth2 logon, only present if OAuth2 is enabled
     // and working.
     nsCOMPtr<msgIOAuth2Module> mOAuth2Support;
+#endif
 };
 
 #endif  // nsSmtpProtocol_h___
diff --git a/mailnews/imap/src/nsImapCore.h b/mailnews/imap/src/nsImapCore.h
index 5fd0e1c1f..0eac33663 100644
--- a/mailnews/imap/src/nsImapCore.h
+++ b/mailnews/imap/src/nsImapCore.h
@@ -147,7 +147,9 @@ const eIMAPCapabilityFlag kHasHighestModSeqCapability = 0x80000000;  /* Subset o
 const eIMAPCapabilityFlag kHasListExtendedCapability = 0x100000000LL;  /* RFC 5258 */
 const eIMAPCapabilityFlag kHasSpecialUseCapability = 0x200000000LL;  /* RFC 6154: Sent, Draft etc. folders */
 const eIMAPCapabilityFlag kGmailImapCapability = 0x400000000LL;  /* X-GM-EXT-1 capability extension for gmail */
+#ifdef MOZ_MAILNEWS_OAUTH2
 const eIMAPCapabilityFlag kHasXOAuth2Capability = 0x800000000LL;  /* AUTH XOAUTH2 extension */
+#endif
 
 
 // this used to be part of the connection object class - maybe we should move it into 
diff --git a/mailnews/imap/src/nsImapProtocol.cpp b/mailnews/imap/src/nsImapProtocol.cpp
index 2a3d1e9ff..73484b2aa 100644
--- a/mailnews/imap/src/nsImapProtocol.cpp
+++ b/mailnews/imap/src/nsImapProtocol.cpp
@@ -797,7 +797,11 @@ nsresult nsImapProtocol::SetupWithUrl(nsIURI * aURL, nsISupports* aConsumer)
     server->GetRealHostName(m_realHostName);
     int32_t authMethod;
     (void) server->GetAuthMethod(&authMethod);
+#ifdef MOZ_MAILNEWS_OAUTH2
     InitPrefAuthMethods(authMethod, server);
+#else
+    InitPrefAuthMethods(authMethod);
+#endif
     (void) server->GetSocketType(&m_socketType);
     bool shuttingDown;
     (void) imapServer->GetShuttingDown(&shuttingDown);
@@ -5563,8 +5567,12 @@ void nsImapProtocol::EscapeUserNamePasswordString(const char *strToEscape, nsCSt
   }
 }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 void nsImapProtocol::InitPrefAuthMethods(int32_t authMethodPrefValue,
                                          nsIMsgIncomingServer *aServer)
+#else
+void nsImapProtocol::InitPrefAuthMethods(int32_t authMethodPrefValue)
+#endif
 {
     // for m_prefAuthMethods, using the same flags as server capablities.
     switch (authMethodPrefValue)
@@ -5608,11 +5616,16 @@ void nsImapProtocol::InitPrefAuthMethods(int32_t authMethodPrefValue,
             kHasAuthLoginCapability | kHasAuthPlainCapability |
             kHasCRAMCapability | kHasAuthGssApiCapability |
             kHasAuthNTLMCapability | kHasAuthMSNCapability |
+#ifdef MOZ_MAILNEWS_OAUTH2
             kHasAuthExternalCapability | kHasXOAuth2Capability;
         break;
       case nsMsgAuthMethod::OAuth2:
         m_prefAuthMethods = kHasXOAuth2Capability;
+#else
+            kHasAuthExternalCapability;
+#endif
         break;
+
     }
 
     if (m_prefAuthMethods & kHasXOAuth2Capability)
@@ -5639,12 +5652,21 @@ nsresult nsImapProtocol::ChooseAuthMethod()
 
   MOZ_LOG(IMAP, LogLevel::Debug, ("IMAP auth: server caps 0x%llx, pref 0x%llx, failed 0x%llx, avail caps 0x%llx",
         serverCaps, m_prefAuthMethods, m_failedAuthMethods, availCaps));
+#ifdef MOZ_MAILNEWS_OAUTH2
   MOZ_LOG(IMAP, LogLevel::Debug, ("(GSSAPI = 0x%llx, CRAM = 0x%llx, NTLM = 0x%llx, "
         "MSN = 0x%llx, PLAIN = 0x%llx,\n  LOGIN = 0x%llx, old-style IMAP login = 0x%llx"
         ", auth external IMAP login = 0x%llx, OAUTH2 = 0x%llx)",
         kHasAuthGssApiCapability, kHasCRAMCapability, kHasAuthNTLMCapability,
         kHasAuthMSNCapability, kHasAuthPlainCapability, kHasAuthLoginCapability,
         kHasAuthOldLoginCapability, kHasAuthExternalCapability, kHasXOAuth2Capability));
+#else
+  MOZ_LOG(IMAP, LogLevel::Debug, ("(GSSAPI = 0x%llx, CRAM = 0x%llx, NTLM = 0x%llx, "
+        "MSN = 0x%llx, PLAIN = 0x%llx,\n  LOGIN = 0x%llx, old-style IMAP login = 0x%llx"
+        ", auth external IMAP login = 0x%llx",
+        kHasAuthGssApiCapability, kHasCRAMCapability, kHasAuthNTLMCapability,
+        kHasAuthMSNCapability, kHasAuthPlainCapability, kHasAuthLoginCapability,
+        kHasAuthOldLoginCapability, kHasAuthExternalCapability));
+#endif
 
   if (kHasAuthExternalCapability & availCaps)
     m_currentAuthMethod = kHasAuthExternalCapability;
@@ -5656,8 +5678,10 @@ nsresult nsImapProtocol::ChooseAuthMethod()
     m_currentAuthMethod = kHasAuthNTLMCapability;
   else if (kHasAuthMSNCapability & availCaps)
     m_currentAuthMethod = kHasAuthMSNCapability;
+#ifdef MOZ_MAILNEWS_OAUTH2
   else if (kHasXOAuth2Capability & availCaps)
     m_currentAuthMethod = kHasXOAuth2Capability;
+#endif
   else if (kHasAuthPlainCapability & availCaps)
     m_currentAuthMethod = kHasAuthPlainCapability;
   else if (kHasAuthLoginCapability & availCaps)
@@ -5933,6 +5957,7 @@ nsresult nsImapProtocol::AuthLogin(const char *userName, const nsCString &passwo
     NS_ENSURE_SUCCESS(rv, rv);
     ParseIMAPandCheckForNewMail();
   }
+#ifdef MOZ_MAILNEWS_OAUTH2
   else if (flag & kHasXOAuth2Capability)
   {
     MOZ_LOG(IMAP, LogLevel::Debug, ("XOAUTH2 auth"));
@@ -5960,6 +5985,7 @@ nsresult nsImapProtocol::AuthLogin(const char *userName, const nsCString &passwo
     NS_ENSURE_SUCCESS(rv, rv);
     ParseIMAPandCheckForNewMail();
   }
+#endif
   else if (flag & kHasAuthNoneCapability)
   {
     // TODO What to do? "login <username>" like POP?
@@ -8617,7 +8643,9 @@ bool nsImapProtocol::TryToLogon()
       // Get password
       if (m_currentAuthMethod != kHasAuthGssApiCapability && // GSSAPI uses no pw in apps
           m_currentAuthMethod != kHasAuthExternalCapability &&
+#ifdef MOZ_MAILNEWS_OAUTH2
           m_currentAuthMethod != kHasXOAuth2Capability &&
+#endif
           m_currentAuthMethod != kHasAuthNoneCapability)
       {
           rv = GetPassword(password, newPasswordRequested);
@@ -8654,6 +8682,7 @@ bool nsImapProtocol::TryToLogon()
             break;
           }
 
+#ifdef MOZ_MAILNEWS_OAUTH2
           if (m_prefAuthMethods & kHasXOAuth2Capability)
           {
             // OAuth2 failed. We don't have an error message for this, and we
@@ -8662,6 +8691,7 @@ bool nsImapProtocol::TryToLogon()
             AlertUserEventUsingName("imapUnknownHostError");
             break;
           }
+#endif
 
           // The reason that we failed might be a wrong password, so
           // ask user what to do
diff --git a/mailnews/imap/src/nsImapProtocol.h b/mailnews/imap/src/nsImapProtocol.h
index 0341d87bb..5c4f43abd 100644
--- a/mailnews/imap/src/nsImapProtocol.h
+++ b/mailnews/imap/src/nsImapProtocol.h
@@ -463,8 +463,11 @@ private:
 
   // login related methods.
   nsresult GetPassword(nsCString &password, bool aNewPasswordRequested);
-  void InitPrefAuthMethods(int32_t authMethodPrefValue,
-                           nsIMsgIncomingServer *aServer);
+#ifdef MOZ_MAILNEWS_OAUTH2
+  void InitPrefAuthMethods(int32_t authMethodPrefValue, nsIMsgIncomingServer *aServer);
+#else
+  void InitPrefAuthMethods(int32_t authMethodPrefValue);
+#endif
   nsresult ChooseAuthMethod();
   void MarkAuthMethodAsFailed(eIMAPCapabilityFlags failedAuthMethod);
   void ResetAuthMethods();
@@ -675,7 +678,9 @@ private:
 
   nsString m_emptyMimePartString;
 
+#ifdef MOZ_MAILNEWS_OAUTH2
   RefPtr<mozilla::mailnews::OAuth2ThreadHelper> mOAuth2Support;
+#endif
 };
 
 // This small class is a "mock" channel because it is a mockery of the imap channel's implementation...
diff --git a/mailnews/imap/src/nsImapServerResponseParser.cpp b/mailnews/imap/src/nsImapServerResponseParser.cpp
index faa37cc45..c5cc49c12 100644
--- a/mailnews/imap/src/nsImapServerResponseParser.cpp
+++ b/mailnews/imap/src/nsImapServerResponseParser.cpp
@@ -2250,8 +2250,10 @@ void nsImapServerResponseParser::capability_data()
         fCapabilityFlag |= kHasAuthMSNCapability;
       else if (token.Equals("AUTH=EXTERNAL", nsCaseInsensitiveCStringComparator()))
         fCapabilityFlag |= kHasAuthExternalCapability;
+#ifdef MOZ_MAILNEWS_OAUTH2
       else if (token.Equals("AUTH=XOAUTH2", nsCaseInsensitiveCStringComparator()))
         fCapabilityFlag |= kHasXOAuth2Capability;
+#endif
       else if (token.Equals("STARTTLS", nsCaseInsensitiveCStringComparator()))
         fCapabilityFlag |= kHasStartTLSCapability;
       else if (token.Equals("LOGINDISABLED", nsCaseInsensitiveCStringComparator()))
diff --git a/mailnews/imap/src/nsSyncRunnableHelpers.cpp b/mailnews/imap/src/nsSyncRunnableHelpers.cpp
index ec547eb91..2928df8eb 100644
--- a/mailnews/imap/src/nsSyncRunnableHelpers.cpp
+++ b/mailnews/imap/src/nsSyncRunnableHelpers.cpp
@@ -457,7 +457,7 @@ NS_SYNCRUNNABLEMETHOD1(ImapServerSink, ResetServerConnection, const nsACString &
 NS_SYNCRUNNABLEMETHOD1(ImapServerSink, SetServerDoingLsub, bool)
 NS_SYNCRUNNABLEMETHOD1(ImapServerSink, SetServerForceSelect, const nsACString &)
 
-
+#ifdef MOZ_MAILNEWS_OAUTH2
 namespace mozilla {
 namespace mailnews {
 
@@ -598,3 +598,4 @@ nsresult OAuth2ThreadHelper::OnFailure(nsresult aError)
 
 } // namespace mailnews
 } // namespace mozilla
+#endif
\ No newline at end of file
diff --git a/mailnews/imap/src/nsSyncRunnableHelpers.h b/mailnews/imap/src/nsSyncRunnableHelpers.h
index 4fcadf465..4740fab10 100644
--- a/mailnews/imap/src/nsSyncRunnableHelpers.h
+++ b/mailnews/imap/src/nsSyncRunnableHelpers.h
@@ -8,8 +8,11 @@
 #include "nsThreadUtils.h"
 #include "nsProxyRelease.h"
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 #include "mozilla/Monitor.h"
 #include "msgIOAuth2Module.h"
+#endif
+
 #include "nsIStreamListener.h"
 #include "nsIInterfaceRequestor.h"
 #include "nsIImapMailFolderSink.h"
@@ -110,6 +113,7 @@ private:
   nsCOMPtr<nsIImapProtocolSink> mReceiver;
 };
 
+#ifdef MOZ_MAILNEWS_OAUTH2
 class msgIOAuth2Module;
 class nsIMsgIncomingServer;
 class nsIVariant;
@@ -142,5 +146,6 @@ private:
 
 } // namespace mailnews
 } // namespace mozilla
+#endif
 
 #endif // nsSyncRunnableHelpers_h
diff --git a/mailnews/jar.mn b/mailnews/jar.mn
index e2b851197..71539e9aa 100644
--- a/mailnews/jar.mn
+++ b/mailnews/jar.mn
@@ -22,10 +22,10 @@ messenger.jar:
     content/messenger/am-main.xul                                              (base/prefs/content/am-main.xul)
     content/messenger/am-main.js                                               (base/prefs/content/am-main.js)
     content/messenger/am-help.js                                               (base/prefs/content/am-help.js)
-    content/messenger/am-server.xul                                            (base/prefs/content/am-server.xul)
+*   content/messenger/am-server.xul                                            (base/prefs/content/am-server.xul)
     content/messenger/am-serverwithnoidentities.xul                            (base/prefs/content/am-serverwithnoidentities.xul)
     content/messenger/am-serverwithnoidentities.js                             (base/prefs/content/am-serverwithnoidentities.js)
-    content/messenger/am-server.js                                             (base/prefs/content/am-server.js)
+*   content/messenger/am-server.js                                             (base/prefs/content/am-server.js)
     content/messenger/am-server-top.xul                                        (base/prefs/content/am-server-top.xul)
     content/messenger/am-copies.xul                                            (base/prefs/content/am-copies.xul)
     content/messenger/am-copies.js                                             (base/prefs/content/am-copies.js)
@@ -39,7 +39,7 @@ messenger.jar:
     content/messenger/am-server-advanced.xul                                   (base/prefs/content/am-server-advanced.xul)
     content/messenger/am-server-advanced.js                                    (base/prefs/content/am-server-advanced.js)
     content/messenger/am-smtp.xul                                              (base/prefs/content/am-smtp.xul)
-    content/messenger/am-smtp.js                                               (base/prefs/content/am-smtp.js)
+*   content/messenger/am-smtp.js                                               (base/prefs/content/am-smtp.js)
     content/messenger/am-prefs.js                                              (base/prefs/content/am-prefs.js)
     content/messenger/am-identities-list.js                                    (base/prefs/content/am-identities-list.js)
     content/messenger/am-identities-list.xul                                   (base/prefs/content/am-identities-list.xul)
@@ -61,23 +61,23 @@ messenger.jar:
     content/messenger/ispUtils.js                                              (base/prefs/content/ispUtils.js)
     content/messenger/SmtpServerEdit.xul                                       (base/prefs/content/SmtpServerEdit.xul)
     content/messenger/SmtpServerEdit.js                                        (base/prefs/content/SmtpServerEdit.js)
-    content/messenger/smtpEditOverlay.xul                                      (base/prefs/content/smtpEditOverlay.xul)
-    content/messenger/smtpEditOverlay.js                                       (base/prefs/content/smtpEditOverlay.js)
+*   content/messenger/smtpEditOverlay.xul                                      (base/prefs/content/smtpEditOverlay.xul)
+*   content/messenger/smtpEditOverlay.js                                       (base/prefs/content/smtpEditOverlay.js)
     content/messenger/removeAccount.xul                                        (base/prefs/content/removeAccount.xul)
     content/messenger/removeAccount.js                                         (base/prefs/content/removeAccount.js)
 #if defined(MOZ_THUNDERBIRD) && defined(HYPE_ICEDOVE)
-    content/messenger/accountcreation/accountConfig.js                         (base/prefs/content/accountcreation/accountConfig.js)
-    content/messenger/accountcreation/createInBackend.js                       (base/prefs/content/accountcreation/createInBackend.js)
-    content/messenger/accountcreation/emailWizard.js                           (base/prefs/content/accountcreation/emailWizard.js)
-    content/messenger/accountcreation/emailWizard.xul                          (base/prefs/content/accountcreation/emailWizard.xul)
+*   content/messenger/accountcreation/accountConfig.js                         (base/prefs/content/accountcreation/accountConfig.js)
+*   content/messenger/accountcreation/createInBackend.js                       (base/prefs/content/accountcreation/createInBackend.js)
+*   content/messenger/accountcreation/emailWizard.js                           (base/prefs/content/accountcreation/emailWizard.js)
+*   content/messenger/accountcreation/emailWizard.xul                          (base/prefs/content/accountcreation/emailWizard.xul)
     content/messenger/accountcreation/fetchConfig.js                           (base/prefs/content/accountcreation/fetchConfig.js)
     content/messenger/accountcreation/fetchhttp.js                             (base/prefs/content/accountcreation/fetchhttp.js)
-    content/messenger/accountcreation/guessConfig.js                           (base/prefs/content/accountcreation/guessConfig.js)
+*   content/messenger/accountcreation/guessConfig.js                           (base/prefs/content/accountcreation/guessConfig.js)
     content/messenger/accountcreation/MyBadCertHandler.js                      (base/prefs/content/accountcreation/MyBadCertHandler.js)
-    content/messenger/accountcreation/readFromXML.js                           (base/prefs/content/accountcreation/readFromXML.js)
+*   content/messenger/accountcreation/readFromXML.js                           (base/prefs/content/accountcreation/readFromXML.js)
     content/messenger/accountcreation/sanitizeDatatypes.js                     (base/prefs/content/accountcreation/sanitizeDatatypes.js)
     content/messenger/accountcreation/util.js                                  (base/prefs/content/accountcreation/util.js)
-    content/messenger/accountcreation/verifyConfig.js                          (base/prefs/content/accountcreation/verifyConfig.js)
+*   content/messenger/accountcreation/verifyConfig.js                          (base/prefs/content/accountcreation/verifyConfig.js)
 #endif
     content/messenger/msgSynchronize.xul                                       (base/content/msgSynchronize.xul)
     content/messenger/msgSynchronize.js                                        (base/content/msgSynchronize.js)
diff --git a/old-configure.in b/old-configure.in
index 468e199bc..49f45280e 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -2260,6 +2260,7 @@ MOZ_SERVICES_HEALTHREPORT=1
 MOZ_SERVICES_SYNC=1
 MOZ_USERINFO=1
 MOZ_MAILNEWS=
+MOZ_MAILNEWS_OAUTH2=
 MOZ_LDAP_XPCOM=
 MOZ_MORK=
 MOZ_MAPI_SUPPORT=
@@ -2830,6 +2831,7 @@ MOZ_ARG_ENABLE_BOOL(mailnews,
     MOZ_MAILNEWS=)
 
 if test -n "$MOZ_MAILNEWS"; then
+    MOZ_MAILNEWS_OAUTH2=1
     MOZ_MORK=1
     MOZ_LDAP_XPCOM=1
 
@@ -2850,6 +2852,20 @@ AC_SUBST(MOZ_MORK)
 AC_SUBST(MOZ_MOVEMAIL)
 
 dnl =========================================================
+dnl = Mailnews OAuth2 Support
+dnl =========================================================
+MOZ_ARG_DISABLE_BOOL(mailnews-oauth2,
+[  --disable-mailnews-oauth2         Disable oauth2 support in mailnews],
+    MOZ_MAILNEWS_OAUTH2=,
+    MOZ_MAILNEWS_OAUTH2=1)
+
+if test -n "$MOZ_MAILNEWS_OAUTH2"; then
+  AC_DEFINE(MOZ_MAILNEWS_OAUTH2)
+fi
+
+AC_SUBST(MOZ_MAILNEWS_OAUTH2)
+
+dnl =========================================================
 dnl = LDAP
 dnl =========================================================
 MOZ_ARG_DISABLE_BOOL(ldap,