Update documentation for --enable-ipv6

.gitignore

@@ -20,3 +20,4 @@ src/fping
 src/fping6
 stamp-h1
 doc/fping.8
+doc/fping6.8

README

@@ -9,7 +9,7 @@ Current maintainer:
    David Schweikert <david@schweikert.ch>
 
 Website:
-   http://www.fping.org
+   http://www.fping.org/
 
 Installation
 ------------
@@ -24,12 +24,23 @@ If you want to install fping from source, proceed as follows:
 
    sudo setcap cap_net_raw+ep fping
 
-4. Have a look at the fping(1) manual for usage help
+4. Have a look at the fping(8) manual for usage help
    (fping -h will also give a minimal help output)
 
+IPv6 support
+------------
+You can can compile fping with support for IPv6 addresses. A separate binary
+is used for that, called fping6. To build it, use ./configure --enable-ipv6
+(possibly combined with --enable-ipv4 to also build fping for IPv4). E.g.:
+
+  # ./configure --prefix=/usr/local --enable-ipv4 --enable-ipv6
+  # make
+  # make install
+  # sudo setcap cap_net_raw+ep /usr/local/bin/fping*
+
 Credits
 -------
 Original author:  Roland Schemers (schemers@stanford.edu)
 Previous maintainer:  RL "Bob" Morgan (morgan@stanford.edu)
-IPv6 Support: Jeroen Massar (jeroen@unfix.org / jeroen@ipng.nl)
+Initial IPv6 Support: Jeroen Massar (jeroen@unfix.org / jeroen@ipng.nl)
-              to enable IPV6 compile with -DIPV6                          
+Other contributors: see ChangeLog

doc/Makefile.am

@@ -1,6 +1,17 @@
-man_MANS = fping.8
+man_MANS =
+
+if IPV4
+man_MANS += fping.8
+endif
+
+if IPV6
+man_MANS += fping6.8
+endif
+
 EXTRA_DIST = $(man_MANS) fping.pod README.1992
 
 fping.8: fping.pod
-	pod2man $< >$@
 	pod2man  -c "" -s 8 -r "fping $(VERSION)" $< >$@
+
+fping6.8: fping.pod
+	pod2man  -c "" -s 8 -r "fping $(VERSION)" -n fping6 $< >$@

doc/fping.pod

@@ -5,6 +5,7 @@ fping - send ICMP ECHO_REQUEST packets to network hosts
 =head1 SYNOPSIS
 
 B<fping> [ I<options> ] [ I<systems...> ] 
+B<fping6> [ I<options> ] [ I<systems...> ] 
 
 =head1 DESCRIPTION
 
@@ -21,6 +22,9 @@ sending a specified number of pings to a target, or looping indefinitely (as in
 B<ping> ). Unlike B<ping>, B<fping> is meant to be used in scripts, so its
 output is designed to be easy to parse.
 
+The binary named B<fping6> is the same as B<fping>, except that it uses IPv6
+addresses instead of IPv4.
+
 =head1 OPTIONS
 
 =over 5