I have the following struct with i compile with -betterC into a static library.

struct SubmitDesc {

    union {
        uint[4] viewport;
        struct {
            uint vpx;
            uint vpy;
            uint vpw;
            uint vph;
        }
    }

    union {
        float[4] clearColors;
        struct {
            float[4] clearColor0;
            // float[4] clearColor1;
            // float[4] clearColor2;
            // float[4] clearColor3;
        }
    }

    bool clearColorBuffer;
    bool clearDepthBuffer;
}

I compile another binary which dub does all automatically which is not -betterC where I try to use my static library and the strcut but I get a linker error all the time (Below.
Can somebody point me what I'm missing ?

Of course when I compile everything without -betterC it works just fine. Is the -betterC config not creating the equals, hash functions which are generated by D ?

struct DrawPass {
    CommandList* commands;
    SubmitDesc submitDesc;
}

DrawPass mPassOpaque;

error: /usr/bin/ld: build/.objs/examples/linux/x86_64/debug/source/examples/example.d.o:(.data._D46TypeInfo_S3leo11graphicsapi6common10SubmitDesc6__initZ+0x30): undefined reference to leo.graphicsapi.common.SubmitDesc.__xtoHash(ref const(leo.graphicsapi.common.SubmitDesc))' /usr/bin/ld: build/.objs/examples/linux/x86_64/debug/source/examples/example.d.o:(.data._D46TypeInfo_S3leo11graphicsapi6common10SubmitDesc6__initZ+0x38): undefined reference to leo.graphicsapi.common.SubmitDesc.__xopEquals(ref const(leo.graphicsapi.common.SubmitDesc)) const'
collect2: error: ld returned 1 exit status
Error: undefined reference to leo.graphicsapi.common.SubmitDesc.__xtoHash(ref const(leo.graphicsapi.common.SubmitDesc))
Error: undefined reference to leo.graphicsapi.common.SubmitDesc.__xopEquals(ref const(leo.graphicsapi.common.SubmitDesc)) const
perhaps a library needs to be added with the -L flag or pragma(lib, ...)
Error: linker exited with status 1
cc build/.objs/examples/linux/x86_64/debug/source/examples/example.d.o build/.objs/examples/linux/x86_64/debug/source/examples/graphicsapi/ex0_clear_background.d.o build/.objs/examples/linux/x86_64/debug/source/examples/main.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-glfw/source/bindbc/glfw/bindstatic.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-glfw/source/bindbc/glfw/binddynamic.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-glfw/source/bindbc/glfw/package.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-glfw/source/bindbc/glfw/types.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-loader/source/bindbc/loader/package.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-loader/source/bindbc/loader/sharedlib.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-loader/source/bindbc/loader/system.d.o build/.objs/examples/linux/x86_64/debug/deps/bindbc-loader/source/bindbc/loader/codegen.d.o -o build/linux/x86_64/debug/examples -m64 -Xlinker --export-dynamic -Lbuild/linux/x86_64/debug -lleo -L/usr/lib -Xlinker -Bstatic -lphobos2 -Xlinker -Bdynamic -lpthread -lm -lrt -ldl