How to enable precompiled headers with existing header file.

Hello,

I have a large-ish C/C++ code base that uses static pre-compiled headers MSVC-style. The header file exists in the source tree and C files include it explicitly, as needed. Is there a way to accommodate this structure with cmake? In particular, I’d like to avoid build-time source code generation (i.e. cmake_pch.hxx) and forced includes, if possible.

Thank you for your help!