diff --git a/hudson_mac_build_launcher.sh b/hudson_mac_build_launcher.sh
deleted file mode 100755
index dc3bd24..0000000
--- a/hudson_mac_build_launcher.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-
-SDK_PATH="/Developer/SDKs/MacOSX10.6.sdk"
-OSX_TARGET="10.6"
-
-svn co https://macflightgear.svn.sourceforge.net/svnroot/macflightgear/trunk/FlightGearOSX  macflightgear
-
-pushd macflightgear
-
-# compile the stub executable
-gcc -o FlightGear -mmacosx-version-min=$OSX_TARGET -isysroot $SDK_PATH -arch i386 main.m \
-    -framework Cocoa -framework RubyCocoa -framework Foundation -framework AppKit
-
-popd
-
diff --git a/hudson_mac_build_release.sh b/hudson_mac_build_release.sh
new file mode 100755
index 0000000..f2ed207
--- /dev/null
+++ b/hudson_mac_build_release.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+
+if [ "$WORKSPACE" == "" ]; then
+    echo "ERROR: Missing WORKSPACE environment variable."
+    exit 1
+fi
+
+###############################################################################
+# remove old and create fresh build directories
+rm -rf sgBuild
+rm -rf fgBuild
+mkdir -p sgBuild
+mkdir -p fgBuild
+mkdir -p output
+rm -rf output/*
+rm -rf $WORKSPACE/dist/include/simgear $WORKSPACE/dist/libSim* $WORKSPACE/dist/libsg*.a
+
+###############################################################################
+echo "Starting on SimGear"
+pushd sgBuild
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -G Xcode -DSIMGEAR_SHARED:BOOL="ON" ../simgear
+
+# compile
+xcodebuild -configuration Release -target install  build
+
+if [ $? -ne '0' ]; then
+    echo "make simgear failed"
+    exit 1
+fi
+
+popd
+
+################################################################################
+echo "Starting on FlightGear"
+pushd fgBuild
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -G Xcode -DSIMGEAR_SHARED:BOOL="ON" ../flightgear
+
+xcodebuild -configuration Release -target install  build
+
+if [ $? -ne '0' ]; then
+    echo "make flightgear failed"
+    exit 1
+fi
+
+popd
+
+chmod +x $WORKSPACE/dist/bin/osgversion
+
+################################################################################
+echo "Building Macflightgear launcher"
+
+SDK_PATH="/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk"
+OSX_TARGET="10.6"
+
+svn co https://macflightgear.svn.sourceforge.net/svnroot/macflightgear/trunk/FlightGearOSX  macflightgear
+
+pushd macflightgear
+
+# compile the stub executable
+gcc -o FlightGear -mmacosx-version-min=$OSX_TARGET -isysroot $SDK_PATH -arch i386 main.m \
+    -framework Cocoa -framework RubyCocoa -framework Foundation -framework AppKit
+
+popd
+
+echo "Running package script"
+./hudson_mac_package_release.rb