Gnulib module: stdio, nonblocking
Portability problems fixed by Gnulib module
stdio, together with module
errnobeing set to
EAGAINon some platforms: mingw, MSVC 9.
Portability problems not fixed by Gnulib:
EINTR, even in programs that don't install any signal handlers, on some platforms: MacOS X 10.5.
EINTR, Gnulib provides a module ‘safe-read’ with a