From cbaebc777d0c9b1d5f355e5f23e5e438b9390f03 Mon Sep 17 00:00:00 2001
From: Jef Driesen <jefdriesen@users.sourceforge.net>
Date: Wed, 22 Nov 2017 19:49:16 +0100
Subject: [PATCH] Generate html documentation from the manpages

---
 configure.ac        |  2 ++
 doc/man/Makefile.am | 17 ++++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index d0939b9..774f9b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,8 +64,10 @@ AM_CONDITIONAL([ENABLE_DOC], [test "x$enable_doc" = "xyes"])
 AC_PROG_CC
 AC_PROG_CC_C99
 AC_CHECK_PROGS([DOXYGEN], [doxygen])
+AC_CHECK_PROGS([MANDOC], [mandoc])
 
 AM_CONDITIONAL([HAVE_DOXYGEN],[test -n "$DOXYGEN"])
+AM_CONDITIONAL([HAVE_MANDOC],[test -n "$MANDOC"])
 
 # Enable automake silent build rules.
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
diff --git a/doc/man/Makefile.am b/doc/man/Makefile.am
index 7020e2e..fbaa991 100644
--- a/doc/man/Makefile.am
+++ b/doc/man/Makefile.am
@@ -1,4 +1,4 @@
-dist_man_MANS = \
+MANPAGES = \
 	dc_buffer_append.3 \
 	dc_buffer_free.3 \
 	dc_buffer_get_data.3 \
@@ -32,3 +32,18 @@ dist_man_MANS = \
 	dc_parser_samples_foreach.3 \
 	dc_parser_set_data.3 \
 	libdivecomputer.3
+
+HTMLPAGES = $(MANPAGES:%=%.html)
+
+dist_man_MANS = $(MANPAGES)
+
+if HAVE_MANDOC
+doc_DATA = $(HTMLPAGES)
+endif
+
+SUFFIXES = .3 .3.html
+
+.3.3.html:
+	$(AM_V_GEN) $(MANDOC) -Thtml -Ostyle=mandoc.css,man=%N.%S.html $< > $@
+
+CLEANFILES = $(HTMLPAGES)