--- ui/gl/BUILD.gn.orig	2018-12-03 21:18:06.000000000 +0100
+++ ui/gl/BUILD.gn	2018-12-15 20:36:26.132070000 +0100
@@ -203,7 +203,7 @@
       ]
     }
 
-    if (is_posix && !is_fuchsia && !is_mac) {
+    if (is_posix && !is_fuchsia && !is_mac && !is_bsd) {
       # Windows has USE_EGL but doesn't support base::FileDescriptor.
       # libsync isn't supported or needed on MacOSX.
       # Fuchsia is excluded due to a libsync dependency and because it's