Unified csproj

[copyrat90]

Currently, I have 8 different *.csproj files for each platform configurations:

• GnsSharp.Gns.Win64.csproj
• GnsSharp.Gns.Win32.csproj
• GnsSharp.Gns.Posix64.csproj
• GnsSharp.Gns.Posix32.csproj
• GnsSharp.Steamworks.Win64.csproj
• GnsSharp.Steamworks.Win32.csproj
• GnsSharp.Steamworks.Posix64.csproj
• GnsSharp.Steamworks.Posix32.csproj

The only difference between the csproj files are the DefineConstants:

<!-- `GnsSharp.Steamworks.Win64.csproj` for example -->
<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <DefineConstants>$(DefineConstants);GNS_SHARP_STEAMWORKS_SDK;GNS_SHARP_PLATFORM_WIN64</DefineConstants>
  </PropertyGroup>
</Project>

This constants difference is required because:

• GNS_SHARP_OPENSOURCE_GNS vs GNS_SHARP_STEAMWORKS_SDK
  • Different native library dependencies between stand-alone GNS & Steamworks
• GNS_SHARP_PLATFORM_WIN64 vs GNS_SHARP_PLATFORM_WIN32 vs GNS_SHARP_PLATFORM_POSIX64 vs GNS_SHARP_PLATFORM_POSIX32
  • Different native library names across platforms
    • steam_api64 vs steam_api vs libsteam_api
  • size_t differences between 64/32 bit platforms

But, splitting csproj files is not ideal;
The library user need to deal with conditional compilation in their csproj at best, or split their csproj file because of this at worst.

I need to find a way to make this transparent, so that the user don't need to do this.
But it seems that the library user can't <DefineConstant> on their csproj to change the behavior of the dependent csproj.

Probably I need to do this with .NET Runtime Identifier (RID), but...

• It needs a lot of manual work on the csproj side.
• Does it work with the Godot export? (The main reason I wrote GnsSharp)

---

Additionally, the Steamworks versions could include the native libraries built in.
But I'm rather hesitant about it, because including huge binaries inside of Git history is known to be not scalable.