Update from Gnulib

This incorporates:
2019-04-07 Add copyright notices in several files
* build-aux/config.sub, doc/misc/texinfo.tex, lib/_Noreturn.h:
Copy from Gnulib.
* lib/gnulib.mk.in: Regenerate.

1 files changed, 3 insertions, 1 deletions

diff --git a/build-aux/config.sub b/build-aux/config.sub
index 3b4c7624b68..a44fd8ae908 100755
--- a/build-aux/config.sub
+++ b/build-aux/config.sub
@@ -822,7 +822,9 @@ case $basic_machine in
                 cpu=m68k
                 vendor=next
                 case $os in
-                    nextstep* )
+                    openstep*)
+                        ;;
+                    nextstep*)
                         ;;
                     ns2*)
                       os=nextstep2