--AC_DEFINE_UNQUOTED(PR_RUN_DIR, "`eval echo "${localstatedir}"`")
-+AC_DEFINE_UNQUOTED(PR_RUN_DIR, "`eval echo "${localstatedir}/proftpd"`")
- AC_DEFINE_UNQUOTED(PR_CONFIG_FILE_PATH, "`eval echo "${sysconfdir}/proftpd.conf"`")
- AC_DEFINE_UNQUOTED(PR_PID_FILE_PATH, "`eval echo "${localstatedir}/proftpd.pid"`")
+-AC_DEFINE_UNQUOTED(PR_RUN_DIR, "`eval echo "${localstatedir}"`", [Define the run directory])
++AC_DEFINE_UNQUOTED(PR_RUN_DIR, "`eval echo "${localstatedir}/proftpd"`", [Define the run directory])
+ AC_DEFINE_UNQUOTED(PR_CONFIG_FILE_PATH, "`eval echo "${sysconfdir}/proftpd.conf"`", [Define the configuration file path])
+ AC_DEFINE_UNQUOTED(PR_PID_FILE_PATH, "`eval echo "${localstatedir}/proftpd.pid"`", [Define the PID file path])