Support non-blocking pipe I/O in write() on native Windows.

[gnulib.git] / doc / posix-functions / printf.texi

diff --git a/doc/posix-functions/printf.texi b/doc/posix-functions/printf.texi
index eaee96a..df7813f 100644 (file)
--- a/doc/posix-functions/printf.texi
+++ b/doc/posix-functions/printf.texi
@@ -4,7 +4,7 @@
 
 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/printf.html}
 
-Gnulib module: printf-posix or stdio, sigpipe
+Gnulib module: printf-posix or stdio, nonblocking, sigpipe
 
 Portability problems fixed by Gnulib module @code{printf-posix}:
 @itemize
@@ -64,6 +64,15 @@ This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
 @end itemize
 
+Portability problems fixed by Gnulib module @code{stdio} or @code{printf-posix}, together with module @code{nonblocking}:
+@itemize
+@item
+When writing to a non-blocking pipe whose buffer is full, this function fails
+with @code{errno} being set to @code{ENOSPC} instead of @code{EAGAIN} on some
+platforms:
+mingw.
+@end itemize
+
 Portability problems fixed by Gnulib module @code{stdio} or @code{printf-posix}, together with module @code{sigpipe}:
 @itemize
 @item