Switch to automake 1.16.
diff --git a/ChangeLog b/ChangeLog
index 8edde3e..c7e8357 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2018-05-04 Bruno Haible <bruno@clisp.org>
+
+ Switch to automake 1.16.
+ * autogen.sh: Update comment.
+ * Makefile.devel (AUTOMAKE, ACLOCAL): Switch to version 1.16.
+ * libcharset/Makefile.devel (ACLOCAL): Likewise.
+ * preload/Makefile.devel (ACLOCAL): Likewise.
+
2018-03-27 Bruno Haible <bruno@clisp.org>
Doc tweaks.
diff --git a/Makefile.devel b/Makefile.devel
index ed9c3a1..b965339 100644
--- a/Makefile.devel
+++ b/Makefile.devel
@@ -6,8 +6,8 @@
MAKE = make
AUTOCONF = autoconf-2.69
AUTOHEADER = autoheader-2.69
-AUTOMAKE = automake-1.15
-ACLOCAL = aclocal-1.15
+AUTOMAKE = automake-1.16
+ACLOCAL = aclocal-1.16
GPERF = gperf
CC = gcc -Wall
CFLAGS = -O
diff --git a/autogen.sh b/autogen.sh
index 3a0cad4..7895b22 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -4,7 +4,7 @@
# also regenerates all aclocal.m4, config.h.in, Makefile.in, configure files
# with new versions of autoconf or automake.
#
-# This script requires autoconf-2.63..2.69 and automake-1.11..1.15 in the PATH.
+# This script requires autoconf-2.63..2.69 and automake-1.11..1.16 in the PATH.
# It also requires either
# - the GNULIB_TOOL environment variable pointing to the gnulib-tool script
# in a gnulib checkout, or
@@ -12,7 +12,7 @@
# It also requires
# - the gperf program.
-# Copyright (C) 2003-2012, 2016 Free Software Foundation, Inc.
+# Copyright (C) 2003-2012, 2016, 2018 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
diff --git a/libcharset/Makefile.devel b/libcharset/Makefile.devel
index 50f7bfe..77b0823 100644
--- a/libcharset/Makefile.devel
+++ b/libcharset/Makefile.devel
@@ -5,7 +5,7 @@
MAKE = make
AUTOCONF = autoconf-2.69
AUTOHEADER = autoheader-2.69
-ACLOCAL = aclocal-1.15
+ACLOCAL = aclocal-1.16
CP = cp
RM = rm -f
diff --git a/preload/Makefile.devel b/preload/Makefile.devel
index e3f0bd8..d3fd192 100644
--- a/preload/Makefile.devel
+++ b/preload/Makefile.devel
@@ -4,7 +4,7 @@
SHELL = /bin/sh
MAKE = make
AUTOCONF = autoconf-2.69
-ACLOCAL = aclocal-1.15
+ACLOCAL = aclocal-1.16
CP = cp
RM = rm -f