Add Makefile module for building documentation.

doc/module.mk

@@ -0,0 +1,48 @@
+# doc/module.mk
+# Part of ZeroTier One, a software-defined network layer.
+#
+# Copyright © 2016 Ben Finney <ben+zerotier@benfinney.id.au>
+# This is free software: you may copy, modify, and/or distribute this
+# work under the terms of the GNU General Public License, version 3 or
+# later as published by the Free Software Foundation.
+# No warranty expressed or implied.
+# See the file ‘LICENSE.txt’ for details.
+
+# Makefile module for ZeroTier One documentation.
+
+TEMPFILE_SUFFIX = .tmp
+.INTERMEDIATE: ${DOCUMENTATION_DIR}/*${TEMPFILE_SUFFIX}
+
+RST_SUFFIX = .txt
+manpage_sections = 1 2 3 4 5 6 7 8
+manpage_names += zerotier-one.8
+manpage_names += zerotier-idtool.1
+manpage_names += zerotier-cli.1
+manpage_source_paths = $(addprefix ${DOC_DIR}/, \
+	$(addsuffix ${RST_SUFFIX},${manpage_names}))
+manpage_paths = $(addprefix ${DOC_DIR}/,${manpage_names})
+manpage_encoding_stub = ${DOC_DIR}/manpage_encoding_declaration.UTF-8
+
+GENERATED_FILES += $(addprefix ${DOC_DIR}/,\
+	$(foreach section,${manpage_sections},*.${section}))
+
+RST2MAN = rst2man
+RST2MAN_OPTS =
+
+.PHONY: manpages
+manpages: ${manpage_paths}
+
+%.1: %.1${RST_SUFFIX}
+	$(RST2MAN) "$<" > "$@"${TEMPFILE_SUFFIX}
+	cat ${manpage_encoding_stub} "$@"${TEMPFILE_SUFFIX} > "$@"
+
+%.8: %.8${RST_SUFFIX}
+	$(RST2MAN) "$<" > "$@"${TEMPFILE_SUFFIX}
+	cat ${manpage_encoding_stub} "$@"${TEMPFILE_SUFFIX} > "$@"
+
+
+# Local variables:
+# coding: utf-8
+# mode: makefile
+# End:
+# vim: fileencoding=utf-8 filetype=make :