diff --git a/prepare.py b/prepare.py
index 8a97db5b1..027869ec0 100755
--- a/prepare.py
+++ b/prepare.py
@@ -77,13 +77,18 @@ class AndroidX86Target(AndroidTarget):
         AndroidTarget.__init__(self, 'x86')
 
 
+class AndroidX86_64Target(AndroidTarget):
+
+    def __init__(self):
+        AndroidTarget.__init__(self,'x86_64')
 
 
 android_targets = {
     'arm': AndroidArmTarget(),
     'armv7': AndroidArmv7Target(),
     'arm64': AndroidArm64Target(),
-    'x86': AndroidX86Target()
+    'x86': AndroidX86Target(),
+    'x86_64': AndroidX86_64Target()
 }
 
 class AndroidPreparator(prepare.Preparator):
diff --git a/submodules/cmake-builder b/submodules/cmake-builder
index bc6df3cfa..f18297907 160000
--- a/submodules/cmake-builder
+++ b/submodules/cmake-builder
@@ -1 +1 @@
-Subproject commit bc6df3cfa2c2f8cc54fb225735374c246b68721b
+Subproject commit f18297907ce625a8839072b9555a42866fc1509e
diff --git a/submodules/externals/libvpx b/submodules/externals/libvpx
index f920c847f..bdd0ae104 160000
--- a/submodules/externals/libvpx
+++ b/submodules/externals/libvpx
@@ -1 +1 @@
-Subproject commit f920c847fc8ec294fb0c5c1a177d67d58beaace2
+Subproject commit bdd0ae104378fc5435cbe6b03d7ae201848838d9
diff --git a/submodules/linphone b/submodules/linphone
index a1fe7e4b0..bcc130586 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit a1fe7e4b0430dfd5b49d4c757b7dbe2128ea5f83
+Subproject commit bcc1305863186234746fd91487495773db93a511
diff --git a/submodules/mediastreamer2 b/submodules/mediastreamer2
index bc087e2af..43539d210 160000
--- a/submodules/mediastreamer2
+++ b/submodules/mediastreamer2
@@ -1 +1 @@
-Subproject commit bc087e2afedb0a62e314c6455c3dd465fb79cd86
+Subproject commit 43539d210063c7a6be360758090f4890c10973d9
diff --git a/submodules/oRTP b/submodules/oRTP
index 67c0672e2..8e6ab4f17 160000
--- a/submodules/oRTP
+++ b/submodules/oRTP
@@ -1 +1 @@
-Subproject commit 67c0672e2680baa85a74d8966b813fac259649df
+Subproject commit 8e6ab4f17f8d1d6870859ba9c64157693d6537a1