/usr/lib/GNUstep/Bundles/ is in gnustep-back0.26-xlib 0.26.2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/English.lproj/
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/English.lproj/nfontFaceNames.strings
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/Info-gnustep.plist
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/Swedish.lproj/
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/Resources/Swedish.lproj/nfontFaceNames.strings
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/libgnustep-back-026
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/libgnustep-xlib-026
/usr/lib/GNUstep/Bundles/libgnustep-xlib-026.bundle/stamp.make