How to make same binaries using mxmlc, without timestamp?

Question

It seems like mxmlc generates different binary even when the source code is not changed.
for, example,
// Test.as
package
    public class Test { }
and when i run mxmlc like this :
mxmlc Test.as -output case1.swf
mxmlc Test.as -output case2.swf
and case1.swf and case2.swf is different!
I found that mxmlc sets metadata and some timestamp in .swf file,
I could get the same binary by "unpacking" .swf, removing timestamp, and manually re-pack it.
( http://stackoverflow.com/questions/5632318/mxmlc-generates-different-binary-on-same-source )
But it'll be happier when there is a special switch which generates same binary data ( That means, if mxmlc removes all timestamp and metadata which generated in compile time ) !
Is there any way to do it, or should i build specialized mxmlc compiler?

Answer 1

Have you get some thing about it?
i am confused with this ,too
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