From 88c2994e20be93122bbd316d65711321f97ea2ba Mon Sep 17 00:00:00 2001
From: Manolo Gouy <mgouy@biomp2.home>
Date: Wed, 15 May 2019 21:55:10 +0200
Subject: Restore use for GL windows under macOS 10.14.0

---
 src/Fl_cocoa.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 72ab89ca3..f608ae8a4 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -2272,6 +2272,9 @@ static FLTextInputContext* fltextinputcontext_instance = nil;
     }
   return self;
 }
+- (void)displayLayer:(CALayer *)layer { // necessary with 10.14, does not run with ≥ 10.14.2
+  [self drawRect:[self frame]];
+}
 
 /* Used by non-layered windows and by all GL windows.
  * Gets called when a window is created or resized, or moved between retina and non-retina displays
-- 
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