Error in wrapCSharp on Windows

[lempiji]

Thank you for the interesting library.:+1:

I tried the wrapCSharp on Windows, but a compile error occurred.

Error: only one main, WinMain, or DllMain allowed. Previously found main at source\csharp\wrapper.d-mixin-6(100,31)

The cause is the following in boilerplate.d. https://github.com/kaleidicassociates/autowrap/blob/master/csharp/source/autowrap/csharp/boilerplate.d#L43

I avoided errors in the following way, because I wanted to run examples.

        //Insert DllMain for Windows only.
        version(Windows) {
            version(EmitCSharp) {
            } else {
                %3$s
            }
        }

        version (EmitCSharp) {
            void main() {
                import std.stdio;
                string generated = generateCSharp!(%2$s)(LibraryName("%4$s"), RootNamespace("%5$s"));
                auto f = File("%6$s", "w");
                f.writeln(generated);
            }
        }

I'm glad if it is fixed.

Regards

[LightBender]

@lempiji Did you attempt to build both python and C# bindings into the same library? Right now both the python bindings and the C# bindings insert the DllMain. The workaround would be to generate them as seperate libraries for the moment.

@atilaneves A static if based on an enum that is defined inside the version statement is probably the best fix here correct? I don't want to break your python code.

[atilaneves]

I think the best way here is to move DllMain to a separate subpackage and have both python and csharp packages depend on it, then yes, probably check with a static if if DllMain has previously been defined or not.

[lempiji]

@LightBender No, I used only for C#. And I just built the examples/csharp.

I think that it is a good idea to separate it into subpackage.