@section @code{vfscanf}
@findex vfscanf
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vfscanf.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vfscanf.html}
-Gnulib module: ---
+Gnulib module: vfscanf, nonblocking
-Portability problems fixed by Gnulib:
+Portability problems fixed by Gnulib module @code{vfscanf}, together with module @code{nonblocking}:
@itemize
+@item
+When reading from a non-blocking pipe whose buffer is empty, this function
+fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on
+some platforms:
+mingw, MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
-AIX 4.3.2, IRIX 6.5, OSF/1 5.1, Solaris 8, Interix 3.5.
+Minix 3.1.8, AIX 4.3.2, IRIX 6.5, OSF/1 5.1, Solaris 8, Interix 3.5.
@item
On Windows platforms (excluding Cygwin), this function does not set @code{errno}
upon failure.