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Editorial Team
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Asked: 2026-05-11T19:58:49+00:00

Is it possible to use to use libs compiled with /MT in C++ CLR?

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Is it possible to use to use libs compiled with /MT in C++ CLR? It throws me either a ton of LNK2022 “metadata operation failed (8013118D)” errors (if I use /MD in the CLR project) or ” ‘/MT’ and ‘/clr:pure’ command-line options are incompatible” if I use /MT.

What do I need to change in the library? The library is mine, but it includes several third party static libs.

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1 Answer

  1. Editorial Team

    LNK2022 are a pain to pinpoint. It usually means one of your module’s configuration affecting structure layout is different from the others.

    Check for the following usual causes:

    • Make sure all your projects are using the same runtime library (/MDd or /MD) for your current solution configuration. If one project is using Debug while others are using Release or vice-versa, you will get LNK2022 errors.
    • Make sure all your projects are using the same structure member alignment. Pay special attention if one project is using /Zp switch. Also, make sure you dont use #pragma pack(n) conditionally.

    You can use /d1reportSingleClassLayout_your-class-name_ (without space) to get information about the problematic class’ layout.

    For more information see : Diagnosing Hidden ODR Violations in Visual C++

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