strchrnul: work around cygwin bug

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

diff --git a/doc/posix-functions/fscanf.texi b/doc/posix-functions/fscanf.texi
index 31638d81a7f98518712aed0048eacb09a04617b4..1c47ec2ccee413d3135e645fc270db8109b6fdce 100644 (file)
--- a/doc/posix-functions/fscanf.texi
+++ b/doc/posix-functions/fscanf.texi
@@ -2,12 +2,17 @@
 @section @code{fscanf}
 @findex fscanf
 
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/fscanf.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fscanf.html}
 
-Gnulib module: ---
+Gnulib module: stdio, nonblocking
 
-Portability problems fixed by Gnulib:
+Portability problems fixed by Gnulib module @code{stdio}, 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: