Works fine with c++11, thanks!
System: (K)Ubuntu 16.04 LTS
Compiler: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
Try to 'g++ -c' the four SGB examples girth.cpp, miles_span.cpp,
roget_components.cpp, and topo-sort-with-sgb.cpp.
(1) SGB 2002-01-30 changed the 'Associated Press scores' from 'ap0' and
'ap1' to 'ap'. This preprocessor macro (sic!) collides with numerous
function parameters in 'named_function_params.hpp'. '#undef'ining the
macro doesn't break the BGL examples.
(2) girth.cpp fails because of a missing 'null_vertex()' function.
(3) roget_components.cpp invokes 'strncmp()' from the C library.
(4) topo-sort-with-sgb.cpp hickups because of a missing 'vertices()'
function. Following roget_components.cpp and putting the collective
SGB header up front fixes this.
