Noexcept is a C++11 feature, so it has to be enabled by -std=c++11 or
-std=gnu++11 (or, on some older gcc verions, -std=c++0x/gnu++0x)
$ cat noex.cc
void fn() noexcept(false);
$ g++ -c noex.cc
noex.cc:1:11: error: expected initializer before ‘noexcept’
void fn() noexcept(false);
^
$ g++ -std=c++11 -c noex.cc
$
Jeff
