d051cbda5d
In commit 079e8469ab (... OpenGL always needs X11 on Unix, 2002-09-05) the FindOpenGL module was taught to search for X11 as a dependency of the OpenGL library. This was done without a detailed explanation, and the dependency should not be explicitly needed because OpenGL headers should not expose applications to X11 APIs directly. Unfortunately the only way to know if anything legitimately depends on this behavior (perhaps in static library cases) is to simply remove it and wait for issues to be reported. If so, then we can add some kind of compatibility setting for this later. Add a release note to draw attention to this change. Reported-by: Dainius "GreatEmerald" Masiliūnas <pastas4@gmail.com>