From 4bd07355abb1ad6b5463db7e7c763ea0075ebbc8 Mon Sep 17 00:00:00 2001
From: Orestis Floros <orestisflo@gmail.com>
Date: Tue, 5 May 2020 17:39:49 +0200
Subject: [PATCH] configure: Add switch to disable manual pages (#413)

Code copied from i3

Fixes #377
---
 Makefile.am  |  4 ++++
 configure.ac | 20 ++++++++++++++------
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 15b8ffb..b6e40f3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ echo-version:
 
 bin_PROGRAMS = i3status
 
+if BUILD_MANS
 dist_man1_MANS = \
 	$(asciidoc_MANS)
 
@@ -17,6 +18,9 @@ $(asciidoc_MANS): man/%.1: man/%.xml man/$(dirstamp)
 
 man/%.xml: man/%.man man/asciidoc.conf man/$(dirstamp)
 	$(AM_V_GEN) @PATH_ASCIIDOC@ -d manpage -b docbook -f $(top_builddir)/man/asciidoc.conf -o $@ $<
+else
+asciidoc_MANS =
+endif
 
 AM_CPPFLAGS = \
 	-DSYSCONFDIR="\"$(sysconfdir)\"" \
diff --git a/configure.ac b/configure.ac
index 11caa33..3468cb1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -114,12 +114,20 @@ AC_PROG_MAKE_SET
 AC_PROG_RANLIB
 AC_PROG_LN_S
 
-AC_PATH_PROG([PATH_ASCIIDOC], [asciidoc], [no])
-AS_IF([test x"$PATH_ASCIIDOC" = x"no"],
-      [AC_MSG_ERROR([asciidoc is required for generating man pages])])
-AC_PATH_PROG([PATH_XMLTO], [xmlto], [no])
-AS_IF([test x"$PATH_XMLTO" = x"no"],
-      [AC_MSG_ERROR([xmlto is required for generating man pages])])
+AC_ARG_ENABLE(mans,
+  AS_HELP_STRING(
+    [--disable-mans],
+    [disable building manual pages]),
+  [ax_mans=$enableval],
+  [ax_mans=yes])
+AS_IF([test x$ax_mans = xyes], [
+  AC_PATH_PROG([PATH_ASCIIDOC], [asciidoc])
+])
+AS_IF([test x$ax_mans = xyes], [
+  AC_PATH_PROG([PATH_XMLTO], [xmlto])
+  AC_PATH_PROG([PATH_POD2MAN], [pod2man])
+])
+AM_CONDITIONAL([BUILD_MANS], [test x$ax_mans = xyes && test x$PATH_ASCIIDOC != x && test x$PATH_XMLTO != x && test x$PATH_POD2MAN != x])
 
 AM_PROG_AR