-## Copyright (C) 2001, 2002 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
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-## GNU General Public License for more details.
-
-## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
-## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-## 02111-1307 USA
-
-AM_CFLAGS = $(WARNING_CFLAGS)
-
-lib_LIBRARIES = liby.a
-noinst_LIBRARIES = libbison.a
-
-# config.h is in build/., and system.h is in src/src/.
-INCLUDES = -I$(top_builddir) \
- -I$(top_srcdir)/src \
- -I$(top_srcdir)/lib
-
-liby_a_SOURCES = main.c yyerror.c
-
-# Heck, we are still using an old version of Automake which does not
-# understand inner AC_LIBOBJ (i.e., from Autoconf itself, not from
-# configure.in).
-EXTRA_DIST = malloc.c realloc.c strnlen.c
-
-libbison_a_SOURCES = \
- gettext.h \
- basename.c dirname.h dirname.c \
- get-errno.h get-errno.c \
- getopt.h getopt.c getopt1.c \
- hash.h hash.c \
- mbswidth.h mbswidth.c \
- quote.h quote.c quotearg.h quotearg.c \
- subpipe.h subpipe.c unlocked-io.h \
- xalloc.h xmalloc.c xstrdup.c xstrndup.c \
- $(bitsets_sources) $(additional_bitsets_sources) $(timevars_sources)
-
-# Implementation of bitsets
+# Make bison/lib.
+
+# Copyright (C) 2001-2004, 2006, 2008-2012 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
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+AM_CFLAGS =
+AM_CPPFLAGS =
+BUILT_SOURCES =
+CLEANFILES =
+EXTRA_DIST =
+MOSTLYCLEANDIRS =
+MOSTLYCLEANFILES =
+SUFFIXES =
+noinst_LIBRARIES =
+
+include gnulib.mk
+
+AM_CFLAGS += $(WARN_CFLAGS)
+
+# Implementation of bitsets.