How do I change the file extension for dependencies

I'm building a program that uses Delphi Packages (BPLs) as plugins, but I'd like to use a custom extension to show that the files have a specific purpose instead of just being BPLs. That works well enough until I end up with one package having a dependency on another. Then the compiler automatically creates the binary with the extension BPL built in.

This wouldn't be too hard to fix with a hex editor, but that's sort of an extreme solution. Is there any way I could make the compiler generate the packages with the right dependency names in the first place?

EDIT: The answers so far seem to have not understood the question.

I know exactly how to create the packages with my custom TEP extension instead of a BPL extension. But if I have package1.TEP and package2.TEP, and package2 depends on package1, and then I try to load package2, it gives an error because it can't find "package1.BPL". What I want is to find some simpler way to make package2 l开发者_高级运维ook for the correct filename, "package1.TEP," that doesn't involve editing the binary after it's been created. Is there any way to do that?

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Use the {$E} directive.

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The simplest solution would be to use a post build event to rename your destination file from *.BPL to whatever specific extension you are requiring.

EDIT: You could write a separate patch program to search for and patch the offending binaries and run it as part of the post build process. If a patch is made to the compiler, then you can remove your step easily.