attach-return-type has no effect
The real issue here seems likely related to upstream Motif developers and RPM packagers not coordinating source code, binaries, and RPM releases and updating their stable release tags to keep pace with actual software releases. Motif-2.3.4 came out in 2012 (>5yrs ago) But there have been 3 stable releases since then https://sourceforge.net/projects/motif/files/?source=navbar with the latest being 2.3.7 which came out 8 months ago. I've cross-listed this bug against Motif here: http://bugs.motifz...
Just upgraded to Fedora 27, and this bug still persists in that release. Here's what I found worked for me on Fedora 27 to get Nedit to not block out the language modes under the syntax highlighting menu. First remove the existing nedit dnf remove nedit The above should also remove the following packages for you as well: nedit-5.7-3.fc27.x86_64 motif-2.3.4-15.fc27.x86_64 xorg-x11-xbitmaps-1.1.1-11.fc27.noarch libXp-1.0.2-9.fc27.x86_64 1) Download source for motif-2.3.7.tar.gz from https://sourceforge.net/projects/motif/files/Motif%202.3.7%20Source%20Code/motif-2.3.7.tar.gz/download...
Language Mode Entries Invisible/Erased/Drawn Over