* gnu/packages/patches/texmacs-wayland-hidpi.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/text-editors.scm (texmacs)[source]: Use it.
(texmacs-guile3)[source]: Use it.
(mogan)[source]: Use it.
Change-Id: Ida737433957cb26695bf43538cff4d5d1c8a83c3