Installation failed.
See ‘/data/gannet/ripley/R/packages/tests-clang/networkTomography.Rcheck/00install.out’ for details.
File ‘networkTomography/libs/networkTomography.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.