Precompiled headers with MSVC

I have a static library which builds fine with Ant + cpptask using
MSVC.  I am trying to add a precompiled header and I'm finding that I
cannot get cpptask's <precompile> element to work.

When I add the precompile element under <cc> I'd expect two things to happen:
1) The cpp file for the precompiled header should be compiled *first*
(as it is now required by all subsequent compiles) and with the /Yc
flag.
2) The other source files should have the "use precompiled header"
(/Yu) flag set.

Neither of these things appear to happen.

Is there an example of <precompile> usage?


-- 
Paul Richards

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