8 files changed, 90 insertions, 8 deletions
diff --git a/build/moz.configure/old.configure b/build/moz.configure/old.configure
index 552019a13..d6e8a287d 100644
--- a/build/moz.configure/old.configure
+++ b/build/moz.configure/old.configure
@@ -307,6 +307,7 @@ def old_configure_options(*options):
     '--enable-mapi',
     '--enable-calendar',
     '--enable-incomplete-external-linkage',
+    '--enable-mailnews',
     
     # Below are configure flags used by Pale Moon
     '--disable-browser-statusbar',
diff --git a/db/mork/moz.build b/db/mork/moz.build
new file mode 100644
index 000000000..a4cc91c19
--- /dev/null
+++ b/db/mork/moz.build
@@ -0,0 +1,11 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# 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 not CONFIG['NSS_DISABLE_DBM'] and CONFIG['MOZ_MORK']:
+    DIRS += [
+        'public',
+        'src',
+        'build',
+    ]
diff --git a/mailnews/base/util/moz.build b/mailnews/base/util/moz.build
index a016cbcb9..134a46ae1 100644
--- a/mailnews/base/util/moz.build
+++ b/mailnews/base/util/moz.build
@@ -68,7 +68,7 @@ EXTRA_JS_MODULES += [
 ]
 
 LOCAL_INCLUDES += [
-  '/mozilla/netwerk/base'
+  '/netwerk/base'
 ]
 
 FINAL_LIBRARY = 'mail'
diff --git a/mailnews/extensions/smime/src/moz.build b/mailnews/extensions/smime/src/moz.build
index f3e888dd4..19a18f54f 100644
--- a/mailnews/extensions/smime/src/moz.build
+++ b/mailnews/extensions/smime/src/moz.build
@@ -18,6 +18,6 @@ EXTRA_COMPONENTS += [
 FINAL_LIBRARY = 'mail'
 
 LOCAL_INCLUDES += [
-    '/mozilla/security/manager/pki',
-    '/mozilla/security/pkix/include'
+    '/security/manager/pki',
+    '/security/pkix/include'
 ]
diff --git a/mailnews/intl/moz.build b/mailnews/intl/moz.build
index 935468da1..10412b119 100644
--- a/mailnews/intl/moz.build
+++ b/mailnews/intl/moz.build
@@ -20,14 +20,14 @@ UNIFIED_SOURCES += [
 XPIDL_MODULE = 'commuconv'
 
 LOCAL_INCLUDES += [
-    '/mozilla/intl/locale',
+    '/intl/locale',
 ]
 
 GENERATED_FILES += [
     'charsetalias.properties.h',
 ]
 charsetalias = GENERATED_FILES['charsetalias.properties.h']
-charsetalias.script = '../../mozilla/intl/locale/props2arrays.py'
+charsetalias.script = '../../intl/locale/props2arrays.py'
 charsetalias.inputs = ['charsetalias.properties']
 
 FINAL_LIBRARY = 'mail'
diff --git a/mailnews/mime/src/moz.build b/mailnews/mime/src/moz.build
index 1d44db88a..93bdbad98 100644
--- a/mailnews/mime/src/moz.build
+++ b/mailnews/mime/src/moz.build
@@ -71,9 +71,9 @@ SOURCES += [
 ]
 
 LOCAL_INCLUDES += [
-     '/mozilla/security/certverifier',
-     '/mozilla/security/manager/ssl',
-     '/mozilla/security/pkix/include',
+     '/security/certverifier',
+     '/security/manager/ssl',
+     '/security/pkix/include',
 ]
 
 EXTRA_COMPONENTS += [
diff --git a/old-configure.in b/old-configure.in
index 6638ea688..45c3fe0ad 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -2259,6 +2259,11 @@ MOZ_PLACES=1
 MOZ_SERVICES_HEALTHREPORT=1
 MOZ_SERVICES_SYNC=1
 MOZ_USERINFO=1
+MOZ_MAILNEWS=
+MOZ_LDAP_XPCOM=
+MOZ_MORK=
+MOZ_MAPI_SUPPORT=
+MOZ_INCOMPLETE_EXTERNAL_LINKAGE=
 
 case "$target_os" in
     mingw*)
@@ -2806,6 +2811,64 @@ x86_64 | arm | aarch64 | x86 | ppc* | ia64)
 
 esac
 
+dnl =========================================================
+dnl = Don't fold mailnews related comps into libXUL
+dnl =========================================================
+MOZ_ARG_ENABLE_BOOL(incomplete-external-linkage,
+[  --enable-incomplete-external-linkage Don't fold *comps into libXUL which is currently badly busted so don't even bother with it ],
+    MOZ_INCOMPLETE_EXTERNAL_LINKAGE=1,
+    MOZ_INCOMPLETE_EXTERNAL_LINKAGE= )
+
+AC_SUBST(MOZ_INCOMPLETE_EXTERNAL_LINKAGE)
+
+dnl ========================================================
+dnl = Enable MailNews
+dnl ========================================================
+MOZ_ARG_ENABLE_BOOL(mailnews,
+[  --enable-mailnews          Enable the mailnews core backend],
+    MOZ_MAILNEWS=1,
+    MOZ_MAILNEWS=)
+
+if test -n "$MOZ_MAILNEWS"; then
+    MOZ_MORK=1
+    MOZ_LDAP_XPCOM=1
+    if test "$_WIN32_MSVC"; then
+        MOZ_MAPI_SUPPORT=1
+    fi
+    AC_DEFINE(MOZ_MAILNEWS)
+    AC_DEFINE(MOZ_MORK)
+fi
+
+AC_SUBST(MOZ_MAILNEWS)
+AC_SUBST(MOZ_MORK)
+
+dnl =========================================================
+dnl = LDAP
+dnl =========================================================
+MOZ_ARG_DISABLE_BOOL(ldap,
+[  --disable-ldap          Disable LDAP support],
+    MOZ_LDAP_XPCOM= )
+
+if test -n "$MOZ_LDAP_XPCOM"; then
+    AC_DEFINE(MOZ_LDAP_XPCOM)
+fi
+
+AC_SUBST(MOZ_LDAP_XPCOM)
+
+dnl =========================================================
+dnl = MAPI support (Windows only)
+dnl =========================================================
+
+MOZ_ARG_DISABLE_BOOL(mapi,
+[  --disable-mapi          Disable MAPI support],
+    MOZ_MAPI_SUPPORT= )
+
+if test -n "$MOZ_MAPI_SUPPORT"; then
+    AC_DEFINE(MOZ_MAPI_SUPPORT)
+fi
+
+AC_SUBST(MOZ_MAPI_SUPPORT)
+
 dnl ========================================================
 dnl = Enable WebRTC code
 dnl ========================================================
diff --git a/toolkit/toolkit.mozbuild b/toolkit/toolkit.mozbuild
index da4e7cd85..6a745e51e 100644
--- a/toolkit/toolkit.mozbuild
+++ b/toolkit/toolkit.mozbuild
@@ -4,6 +4,13 @@
 # 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']:
+    DIRS += [
+        '/ldap',
+        '/db/mork',
+        '/mailnews',
+    ]
+
 DIRS += [
     # Depends on NSS and NSPR
     '/security/certverifier',