[PATCH 2/2] winemac: Override -[NSOpenGLContext clearDrawable] to not hide the GL surface.

[Ken Thomases]

This fixes a problem with flickering when repeatedly attaching and detaching
a GL context from a window, such as for each WM_PAINT.
---
dlls/winemac.drv/cocoa_opengl.m |   25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)

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