diff --git a/fgrun b/fgrun
index ae0b0fe..90e936c 160000
--- a/fgrun
+++ b/fgrun
@@ -1 +1 @@
-Subproject commit ae0b0fef3615a9a2d243da5b566ea3b221f7a6c2
+Subproject commit 90e936c01e28feac4a9c3e28d5227980fb8f1e1d
diff --git a/flightgear b/flightgear
index 4873a28..ea81903 160000
--- a/flightgear
+++ b/flightgear
@@ -1 +1 @@
-Subproject commit 4873a28e9721f637870f28b70e19d2c4b4647da3
+Subproject commit ea81903f6707bb50a362bca64e005bf47f443a8c
diff --git a/hudson_mac_build_release.sh b/hudson_mac_build_release.sh
index 8b7592e..ae2afac 100755
--- a/hudson_mac_build_release.sh
+++ b/hudson_mac_build_release.sh
@@ -49,12 +49,17 @@ chmod +x $WORKSPACE/dist/bin/osgversion
 ################################################################################
 echo "Building Macflightgear launcher"
 
-OSX_TARGET="10.6"
+#OSX_TARGET="10.6"
+# JMT - disabling setting the sysroot since it's breaking things on 
+# current build slave. Sinc ethe slave runs 10.6 natively, we don't 
+# actually need to set these. Real solution would be to use a proper
+# build system for the Mac-launcher of course.
+# -mmacosx-version-min=$OSX_TARGET -isysroot $SDK_PATH
 
 pushd maclauncher/FlightGearOSX
 
 # compile the stub executable
-gcc -o FlightGear -mmacosx-version-min=$OSX_TARGET -isysroot $SDK_PATH main.m \
+gcc -o FlightGear main.m \
     -framework Cocoa -framework RubyCocoa -framework Foundation -framework AppKit
 
 popd
diff --git a/maclauncher b/maclauncher
index 7ffef2c..3692e79 160000
--- a/maclauncher
+++ b/maclauncher
@@ -1 +1 @@
-Subproject commit 7ffef2cb26442578f3c4b1e22158feb1ad812367
+Subproject commit 3692e79f7dbc2c0d8a98a04da6ac55684185eb67
diff --git a/simgear b/simgear
index 724fba4..ea8023e 160000
--- a/simgear
+++ b/simgear
@@ -1 +1 @@
-Subproject commit 724fba4af9ebdc6a684d6c4a47d4f6af2f31f386
+Subproject commit ea8023e51f17d2213d4f61548a91eb403e322656