refer to http://stackoverflow.com/questions/8968726/how-to-create-an-ane-that-will-natively-display-a-floating-window

build.sh

export XLIB="/Users/christo.smal/Library/Developer/Xcode/DerivedData/wherever-lib.a"
export CERT="/wherever/if/you/want/to/sign/ane.p12"
export FLEXLIBPATH="../Path/of/flex/library/project"
export XIBPATH="/Path/of/where/xib/files/are"
export SWCFNAME="FWAne.swc"
export ANEFNAME="FWAne.ane"

ls -la $XLIB

echo Copying files ...
 rm -rf debug/*
cp $FLEXLIBPATH/src/extension.xml .
cp $FLEXLIBPATH/bin/$SWCFNAME .
 cp $XLIB ./debug

'# copy resource files such as images to debug folder
cp /path/to/my/images/referenced/from/xcode/*.png ./debug

echo Compiling xib''s

cp $XIBPATH/*.xib ./debug
cp /wherever/FloatingWindow.xib ./debug

/Developer/usr/bin/ibtool --errors --warnings --notices --output-format human-readable-text --compile debug/FloatingWindow.nib debug/FloatingWindow.xib --sdk /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk

rm -rf debug/*.xib


echo Extracting library.swc ...
cp $SWCFNAME kak
cd kak
unzip -xo $SWCFNAME
cp -X library.swf ../debug
cd ..

echo Copying some more files ...
rm -rf debug/*.ane
cp extension.xml debug

echo Building ANE ... 
'#  -package -target ane / extension.xml -swc  -platform  -C  .
/Applications/Adobe\ Flash\ Builder\ 4.6/sdks/4.6.0/bin/adt -package -target ane debug/unsigned.ane extension.xml -swc $SWCFNAME -platform iPhone-ARM -platformoptions ios-platformoptions.xml -C debug .

echo Signing ANE ...
'#/Applications/Adobe\ Flash\ Builder\ 4.6/sdks/4.6.0/bin/adt -sign -storetype pkcs12 -keystore $CERT -storepass password -target ane debug/unsigned.ane $ANEFNAME
cp debug/unsigned.ane $ANEFNAME

echo done