--- Makefile.am.orig	2009-10-15 18:59:28 +0900
+++ Makefile.am	2009-10-16 20:01:00 +0900
@@ -36,10 +36,12 @@
 modinfo_LDADD = $(LDADD) libmodtools.a
 modindex_LDADD = $(LDADD) libmodtools.a
 
+if WITH_DOC
 MAN5 = modprobe.conf.5 modules.dep.5 depmod.conf.5 modprobe.d.5
 MAN8 = depmod.8 insmod.8 lsmod.8 rmmod.8 modprobe.8 modinfo.8
 SGML = $(addprefix doc/,  $(MAN5:%.5=%.sgml) $(MAN8:%.8=%.sgml))
 dist_man_MANS = $(MAN5) $(MAN8)
+endif
 # If they haven't overridden mandir, fix it (never /man!)
 mandir =$(shell if [ @mandir@ = $(prefix)/man ]; then if [ $(prefix) = / ]; then echo /usr/share/man; else echo $(prefix)/share/man; fi; else echo @mandir@; fi)
 
--- configure.ac.orig	2009-10-15 18:59:28 +0900
+++ configure.ac	2009-10-16 20:05:22 +0900
@@ -29,12 +29,21 @@
 AC_PROG_CC
 AC_PROG_RANLIB
 
-AC_CHECK_PROGS(DOCBOOKTOMAN, docbook-to-man docbook2man, [no],)
-if test x"$DOCBOOKTOMAN" = xno
+AC_ARG_WITH(doc,
+AS_HELP_STRING([--with-doc], [Build man pages (requires docbooktoman)]),
+[WITH_DOC=${withval}],
+[WITH_DOC=no])
+AM_CONDITIONAL(WITH_DOC, test "yes" = "${WITH_DOC}")
+
+if test "yes" = "${WITH_DOC}"
 then
-	AC_MSG_WARN([docbook2man not found])
-	# fail with a meaningfull error if $DOCBOOKTOMAN called by the makefile
-	DOCBOOKTOMAN=docbook2man
+	AC_CHECK_PROGS(DOCBOOKTOMAN, docbook-to-man docbook2man, [no],)
+	if test x"$DOCBOOKTOMAN" = xno
+	then
+		AC_MSG_WARN([docbook2man not found, skipping man page generation])
+		# fail with a meaningfull error if $DOCBOOKTOMAN called by the makefile
+		DOCBOOKTOMAN=docbook2man
+	fi
 fi
  
 # Delay adding the zlib_flags until after AC_PROG_CC, so we can distinguish