Added an option to rename the ipsec script during installation

Also rename the man page and adjust all references in the script, the
man page and other files.

Closes #194.

src/ipsec/Makefile.am

@@ -1,22 +1,35 @@
-sbin_SCRIPTS = ipsec
-CLEANFILES = ipsec ipsec.8
-dist_man8_MANS = ipsec.8
+sbin_SCRIPTS = _ipsec
+CLEANFILES = _ipsec _ipsec.8
+dist_man8_MANS = _ipsec.8
 EXTRA_DIST = ipsec.in ipsec.8.in Android.mk
 
-ipsec.8 : ipsec.8.in
+_ipsec.8 : ipsec.8.in
 	sed \
 	-e "s:@IPSEC_VERSION@:$(PACKAGE_VERSION):" \
-	$(srcdir)/$@.in > $@
+	-e "s:@IPSEC_SCRIPT@:$(ipsec_script):g" \
+	-e "s:@IPSEC_SCRIPT_UPPER@:$(ipsec_script_upper):g" \
+	$< > $@
 
-ipsec : ipsec.in
+_ipsec : ipsec.in
 	sed \
 	-e "s:@IPSEC_SHELL@:/bin/sh:" \
 	-e "s:@IPSEC_VERSION@:$(PACKAGE_VERSION):" \
 	-e "s:@IPSEC_NAME@:$(PACKAGE_NAME):" \
 	-e "s:@IPSEC_DISTRO@::" \
 	-e "s:@IPSEC_DIR@:$(ipsecdir):" \
+	-e "s:@IPSEC_SCRIPT@:$(ipsec_script):" \
 	-e "s:@IPSEC_SBINDIR@:$(sbindir):" \
 	-e "s:@IPSEC_CONFDIR@:$(sysconfdir):" \
 	-e "s:@IPSEC_PIDDIR@:$(piddir):" \
-	$(srcdir)/$@.in > $@
+	$< > $@
 	chmod +x $@
+
+install-exec-hook:
+	mv $(DESTDIR)$(sbindir)/_ipsec $(DESTDIR)$(sbindir)/$(ipsec_script)
+
+install-data-hook:
+	mv $(DESTDIR)$(man8dir)/_ipsec.8 $(DESTDIR)$(man8dir)/$(ipsec_script).8
+
+uninstall-hook:
+	rm -f $(DESTDIR)$(sbindir)/$(ipsec_script)
+	rm -f $(DESTDIR)$(man8dir)/$(ipsec_script).8