GL_GEOMETRY_SHADER is undefined (Windows 10)

[alechk4]

if (shaderProgramAttempt->addVertexShader ((vertexShader))
  && shaderProgramAttempt->addShader (waveGeometryShader, GL_GEOMETRY_SHADER)
  && shaderProgramAttempt->addFragmentShader ((fragmentShader))
  && shaderProgramAttempt->link())

GL_GEOMETRY_SHADER is not defined on Windows. I checked juce_MissingOpenGLDefinitions.h and it only has vertex and fragment.
I know it is not an issue with your code, but I think you should remove Visual Studio as an exporter if there's no way to make it work. Btw, the Oscilloscope2D works perfectly and has been very helpful 👍