From 965e90c7729c71887867879599aea4ee453549d1 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Thu, 19 Nov 2020 08:00:00 +0000
Subject: [PATCH] doc: generalize make rules used to generate man pages

* doc/config.sub.x: New file.
* Makefile (HELP2MAN): New variable.
(doc/%.1): New rule.
(doc/config.guess.1, doc/config.sub.1): Remove.
---
 ChangeLog        |  5 +++++
 Makefile         | 11 +++++------
 doc/config.sub.x |  2 ++
 3 files changed, 12 insertions(+), 6 deletions(-)
 create mode 100644 doc/config.sub.x

diff --git a/ChangeLog b/ChangeLog
index b2a5087..60cb929 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2020-11-19  Dmitry V. Levin  <ldv@altlinux.org>
 
+	* doc/config.sub.x: New file.
+	* Makefile (HELP2MAN): New variable.
+	(doc/%.1): New rule.
+	(doc/config.guess.1, doc/config.sub.1): Remove.
+
 	* testsuite/config-sub.sh: Fix indentation that uses spaces before
 	tabs.
 
diff --git a/Makefile b/Makefile
index 3a51269..1a7aaf7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,15 +1,11 @@
+HELP2MAN = help2man -N
+
 all:
 
 check: check-guess check-sub
 
 manpages: doc/config.guess.1 doc/config.sub.1
 
-doc/config.guess.1: config.guess
-	help2man -N --include=doc/config.guess.x --output=$@ ./config.guess
-
-doc/config.sub.1: config.sub
-	help2man -N --name "validate and canonicalize a configuration triplet" --output=$@ ./config.sub
-
 check-guess:
 	cd testsuite && bash config-guess.sh && rm uname
 
@@ -21,3 +17,6 @@ shellcheck:
 
 sort:
 	for f in config-guess.data config-sub.data ; do sort testsuite/$$f -o testsuite/$$f; done
+
+doc/%.1: % doc/%.x
+	$(HELP2MAN) --include=doc/$<.x --output=$@ ./$<
diff --git a/doc/config.sub.x b/doc/config.sub.x
new file mode 100644
index 0000000..248c263
--- /dev/null
+++ b/doc/config.sub.x
@@ -0,0 +1,2 @@
+[name]
+config.sub \- validate and canonicalize a configuration triplet