Commit 33520a54 authored by Jehan's avatar Jehan

app, libgimp: protect a bit GDK X Window calls.

The GDK_WINDOWING_X11 build-time macro check is not enough as GDK can be
built with both X11 and Wayland backends. We need to add a runtime check
of the type of display.
parent 95454060
Pipeline #190122 passed with stages
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