/usr/share/GNUstep/ is in libsteptalk0 0.10.0-5build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/GNUstep/Frameworks/
/usr/share/GNUstep/Frameworks/StepTalk.framework/
/usr/share/GNUstep/Frameworks/StepTalk.framework/Resources
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/AppKit.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Common.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Distributed.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Foundation-operators.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Foundation.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Safe.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/Standard.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/StepTalk.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Environments/SymbolicSelectors.stenv
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/Info-gnustep.plist
/usr/share/GNUstep/Frameworks/StepTalk.framework/Versions/0/ScriptingInfo.plist