[Linux] AppImage doesn't run on Fedora

[efegurkan]

Hello,

The AppImage doesn't work on Fedora 24.
Here is the console output.
/tmp/.mount_cufLPl $XDG_DATA_DIRS is missing. Please run /tmp/.mount_cufLPl/AppRun from within an AppImage.

I believe there is something with how it is bundled with AppImage. I am not sure though. Maybe @probonopd has some ideas ?

[probonopd]

The error message $XDG_DATA_DIRS is missing comes from AppImageKit's desktopintegration script, but I doubt that it is what prevents HyperTerm from running on Fedora 24.

Do you see any other console output?

[gfortaine]

@efegurkan @probonopd export XDG_DATA_DIRS="/usr/local/share:/usr/share"

[efegurkan]

@gfortaine @probonopd I accept this as a Workaround. This was causing AppImage to not start on F24. It might need further investigation to see if it is really a bug or not.

Do you see any other console output?

@probonopd there was nothing else.

[probonopd]

How is XDG_DATA_DIRS set on Fedora 24 by default?

[efegurkan]

it was not set at all when I did printenv. Also it was not a fresh install, upgraded from F23 if that helps.

[probonopd]

Something to watch for - is this a F24 feature/bug?

[efegurkan]

I am not able to check it with F23. On Ubuntu 14.04 AppImage works just fine.

I assume XDG_DATA_DIRS is not had to be set to comply with the standard according to this line on the standard. Not sure if it is a bug feature on the F24.

If $XDG_DATA_DIRS is either not set or empty, a value equal to /usr/local/share/:/usr/share/ should be used.