@section @code{putchar}
@findex putchar
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/putchar.html}
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/putchar.html}
-Gnulib module: ---
+Gnulib module: stdio, sigpipe
Portability problems fixed by Gnulib:
@itemize
+@item
+When writing to a pipe with no readers, this function fails, instead of
+obeying the current @code{SIGPIPE} handler, on some platforms:
+mingw.
@end itemize
Portability problems not fixed by Gnulib: