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# Automakefile for GNU diffutils man pages
# Copyright (C) 2002, 2009-2013, 2015-2021 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/>.
dist_man1_MANS = cmp.1 diff.1 diff3.1 sdiff.1
EXTRA_DIST = $(dist_man1_MANS:%.1=%.x) help2man
MAINTAINERCLEANFILES = $(dist_man1_MANS)
S = $(top_srcdir)/src
cmp.1: $S/cmp.c cmp.x
diff.1: $S/diff.c diff.x
diff3.1: $S/diff3.c diff3.x
sdiff.1: $S/sdiff.c sdiff.x
# Directory in which just-built programs reside. It is used
# to ensure help2man invokes them via the use of PATH below.
bin_dir = ../src
# Depend on the former to get version number changes.
$(dist_man1_MANS): $(SRC_VERSION_C) help2man
$(AM_V_GEN)base=`expr $@ : '\(.*\).1'` \
&& test -x $(bin_dir)/$$base \
&& (echo '[NAME]' \
&& sed 's@/\* *@@; s/-/\\-/;s/^GNU //; q' $S/$$base.c) \
| PATH="$(bin_dir)$(PATH_SEPARATOR)$$PATH" \
$(srcdir)/help2man -i - -i $(srcdir)/$$base.x \
-S '$(PACKAGE) $(VERSION)' $$base > $@-t && mv $@-t $@
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