* doc/posix-functions/sigprocmask.texi: Mention a NetBSD 9.0 bug.
* doc/posix-functions/pthread_sigmask.texi: Likewise.
+2023-02-03 Bruno Haible <bruno@clisp.org>
+
+ doc: Update regarding NetBSD.
+ * doc/posix-functions/sigprocmask.texi: Mention a NetBSD 9.0 bug.
+ * doc/posix-functions/pthread_sigmask.texi: Likewise.
+
2023-02-03 Paul Eggert <eggert@cs.ucla.edu>
isnan: update comment
On platforms that do not natively support this function,
it has unspecified behavior in a multi-threaded process.
@item
-This function may not fail when the first argument is invalid on some platforms:
-NetBSD 8.0.
+In case of failure, the return value is wrong on some platforms:
+NetBSD 9.0 when libpthread is not in use.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
+@item
+In case of failure, the return value is wrong on some platforms:
+NetBSD 9.0 when libpthread is in use.
@end itemize
Note: Although @code{sigprocmask} officially has undefined behaviour in