version which only checks ~/.Xdefaults, or if that doesn't exist
then ~/.Xresources.
+ Please note that nowadays, things like XIM will automatically pull
+ in and use the full X resource manager, so the overhead of using it
+ might be very small, if nonexistant.
+
--enable-strings
Add support for our possibly faster memset() function and other
various routines, overriding your system's versions which may have
window op and locale change escape sequences
tripleclickwords
settable insecure mode
+ keysym remapping support
--enable-iso14755
Enable extended ISO 14755 support (see rxvt(1), or doc/rxvt.1.txt).