pthread_sigmask: Work around Cygwin bug.

[pspp] / doc / posix-functions / fwrite.texi

diff --git a/doc/posix-functions/fwrite.texi b/doc/posix-functions/fwrite.texi
index 20f7fb8100f25bbafeb631557f511e8b42eb06ef..c03a70ccab362fcc0ba34a88f81da93e11b98156 100644 (file)
--- a/doc/posix-functions/fwrite.texi
+++ b/doc/posix-functions/fwrite.texi
@@ -28,4 +28,8 @@ Portability problems not fixed by Gnulib:
 @item
 On Windows platforms (excluding Cygwin), this function does not set @code{errno}
 upon failure.
+@item
+On some platforms, this function does not set @code{errno} or the
+stream error indicator on attempts to write to a read-only stream:
+Cygwin 1.7.9.
 @end itemize