Hello. I built an X.AppImage application from a .deb package with the pkg2appimage tool.
The application runs fine.
The problem: during its execution, the X application (not AppImage) reads files in a /usr/share/ directory.
The X.AppImage application does the same thing and reads in the /usr/share/ directory (instead of X.AppDir/usr/share/)
How to force X.AppImage to use the directory “X.AppDir/usr/share/”
You can’t force it without editing the source code if it’s hardcoded. This is an annoyance I noticed with the mGBA AppImage as it tries to find shaders under /usr/share as well.
Maybe you’re lucky and the application has a flag or environment variable to change its search location? That’s all down to the app dev though
Change the source code of the application to load its resources from a path relative to the main executable, rather than from an absolute path.
This is known as “making an application relocatable”.