Your package gnome-chemistry-utils failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=12819952 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
Created attachment 1124702 [details] build.log
Created attachment 1124703 [details] root.log
Created attachment 1124704 [details] state.log
Hi Jean, gnome-chemistry-utils fails to build using gcc-6. The specific error is: document.cc: In member function 'void gcr::Document::OnExportVRML(const string&) const': document.cc:1524:24: error: cannot convert 'std::ostringstream {aka std::__cxx11::basic_ostringstream<char>}' to 'gpointer {aka void*}' for argument '1' to 'void g_object_unref(gpointer)' g_object_unref (file); Porting guidance exists [1], but I unfortunately do not have the programming knowledge to use it. [1] https://gcc.gnu.org/gcc-6/porting_to.html