Building log4net

Log4net provides support for a wide array of targets, including

• older .net 2 and 3.5 (including client profiles)
• more modern net40/net45
• netstandard1.3/2.0

As such, it does require a relatively full .net environment on Windows to build.

Options:

• build locally. Suggested environment:
  • Pre-requisites:
    • Visual Studio 2019 Build Tools
      • include desktop targets at least
      • include dotnet core targets or download and install the latest dotnet sdk (you will need at least v2.1)
    • Ensure you have .NET Framework 3.5 SP1 installed
      • on Win10+, this can only be installed via Add/Remove Windows Components
      • on other platforms, see https://dotnet.microsoft.com/download/dotnet-framework/net35-sp1
      • Building against .net 2/3.5, especially Client Profile, is not supported on Mono
  • Binaries can be built with a Visual Studio or Rider installation
  • Binaries, packages and a release zip can be built via commandline
    • Ensure that you have a reasonably modern NodeJS installed (at least version 8+)
      • npm ci
      • npm run build
      • optionally npm test to run all tests
      • optionally npm run release to generate release artifacts
• build via the vs2019 Windows AppVeyer image. There is an appveyer.yml file included which (should) build if you set up AppVeyer to track your fork. AppVeyer is free for open-source projects. (TODO: should have a link to the official AppVeyer build)
• build via the CircleCI Windows image. There is included configuration for CircleCI. CicleCI is free (with usage limitations) for open-source projects.