PRECOMPILED_OBJ
Use the PRECOMPILED_OBJ macro to override the default name given to the precompiled object.
By default, the Build utility takes the precompiled header with the precompiled #include directive that you specify (for example, precomp.h). The Build utility generates precomp.obj for the precompiled object and precomp.pch for the precompiled target.
You can override those names by setting the PRECOMPILED_OBJ and PRECOMPILED_TARGET macros.
See Also
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Build date: 5/3/2011