/usr/include/GNUstep/Frameworks/ is in cynthiune.app 1.0.0-1build2.
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/usr/include/GNUstep/Frameworks/Cynthiune.framework/
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Headers
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/
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/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/NSStringExtensions.h
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/NSTimerExtensions.h
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/NSViewExtensions.h
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/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/Preference.h
/usr/include/GNUstep/Frameworks/Cynthiune.framework/Versions/0/utils.h