diff -ruN nagios-2.6/configure nagios-2.6.new/configure
--- nagios-2.6/configure	2006-11-28 03:29:04.000000000 +0100
+++ nagios-2.6.new/configure	2006-12-28 01:22:56.000000000 +0100
@@ -4810,7 +4810,8 @@
 #define DEFAULT_NAGIOS_GROUP "$nagios_grp"
 _ACEOF
 
-INSTALL_OPTS="-o $nagios_user -g $nagios_grp"
+#INSTALL_OPTS="-o $nagios_user -g $nagios_grp"
+INSTALL_OPTS=""