diff --git a/configure.ac b/configure.ac
index 59dfe11..9144029 100644
--- a/configure.ac
+++ b/configure.ac
@@ -11,6 +11,13 @@
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
 
+# Checks for libraries.
+PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],, [AC_MSG_ERROR([Could not find sdbusplus...openbmc/sdbusplus package required])])
+PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces],, [AC_MSG_ERROR([Could not find phosphor-dbus-interfaces...openbmc/phosphor-dbus-interfaces package required])])
+
+AC_ARG_VAR(USER_MANAGER_BUSNAME, [The Dbus busname to own])
+AS_IF([test "x$USER_MANAGER_BUSNAME" == "x"], [USER_MANAGER_BUSNAME="xyz.openbmc_project.User.Manager"])
+AC_DEFINE_UNQUOTED([USER_MANAGER_BUSNAME], ["$USER_MANAGER_BUSNAME"], [The DBus busname to own])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AX_CXX_COMPILE_STDCXX_14([noext])