POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vscanf.html}
-Gnulib module: ---
+Gnulib module: vscanf, nonblocking
-Portability problems fixed by Gnulib:
+Portability problems fixed by Gnulib module @code{vscanf}, 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.
@end itemize
Portability problems not fixed by Gnulib: