diff --git a/prepare.py b/prepare.py
index 6af46c5e8..588431628 100755
--- a/prepare.py
+++ b/prepare.py
@@ -185,6 +185,7 @@ class IOSPreparator(prepare.Preparator):
         if find_executable("nasm"):
             nasm_output = Popen("nasm -f elf32".split(" "), stderr=PIPE, stdout=PIPE).stderr.read()
             if "fatal: unrecognised output format" in nasm_output:
+                error("Invalid version of nasm detected. Please make sure that you are NOT using Apple's binary here")
                 self.missing_dependencies["nasm"] = "nasm"
                 reterr = 1
 
diff --git a/submodules/bctoolbox b/submodules/bctoolbox
index 285750137..75de608ed 160000
--- a/submodules/bctoolbox
+++ b/submodules/bctoolbox
@@ -1 +1 @@
-Subproject commit 285750137ea9d102b2d2923dfec0ba93fd4c3aea
+Subproject commit 75de608edffd637af7a5911f067f005f380fcf47
diff --git a/submodules/belle-sip b/submodules/belle-sip
index 0d11b6ece..e74398bf2 160000
--- a/submodules/belle-sip
+++ b/submodules/belle-sip
@@ -1 +1 @@
-Subproject commit 0d11b6ece11181112f55443623326ad16f4a2e00
+Subproject commit e74398bf24c85f94c779d2868ee061299831a6da
diff --git a/submodules/bzrtp b/submodules/bzrtp
index b8033c8dc..88104f538 160000
--- a/submodules/bzrtp
+++ b/submodules/bzrtp
@@ -1 +1 @@
-Subproject commit b8033c8dc960b8fd446e3e68d37749828cf7f808
+Subproject commit 88104f538b2d786c6e7808e05a4fb7aba8afca42
diff --git a/submodules/cmake-builder b/submodules/cmake-builder
index a4fbcbee4..0ffa3259f 160000
--- a/submodules/cmake-builder
+++ b/submodules/cmake-builder
@@ -1 +1 @@
-Subproject commit a4fbcbee40e7c9b9ef3ec3f7b0e95e3440906d89
+Subproject commit 0ffa3259fd2848f57ee70cfac941e26dbc38b0ec
diff --git a/submodules/linphone b/submodules/linphone
index af2ecd8cb..747209c61 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit af2ecd8cb67845e904d803d008ced2703e45423e
+Subproject commit 747209c6138b1188e4653f524f54176ebf3a4a5d