settings.h (get): Mark const.
* include/parallel/settings.h (get): Mark const.
* libsupc++/unwind-cxx.h (__cxa_call_terminate): Mark throw ().
* libsupc++/eh_call.cc (__cxa_call_terminate): Mark throw ().
* config/io/basic_file_stdio.cc (sys_open, is_open, fd, seekoff): Mark
throw ().
* config/io/basic_file_stdio.h (__basic_file, sys_open): Mark throw ().
(is_open, fd): Mark pure and throw ().
(seekoff): Mark throw ().
From-SVN: r147077
