+ list published by X/Open Curses. For example, ncurses can be con-
+ figured with tables which match the terminal databases for AIX, HP-
+ UX or OSF/1, rather than the default Solaris-like configuration.
+
+ <STRONG>o</STRONG> In SVr4 curses and ncurses, the terminal database is defined at
+ compile-time using a text file which lists the different terminal
+ capabilities.
+
+ In principle, the text-file can be extended, but doing this
+ requires recompiling and reinstalling the library. The text-file
+ used in ncurses for terminal capabilities includes details for var-
+ ious systems past the documented X/Open Curses features. For exam-
+ ple, ncurses supports these capabilities in each configuration:
+
+ memory_lock
+ (meml) lock memory above cursor
+
+ memory_unlock
+ (memu) unlock memory
+
+ box_chars_1
+ (box1) box characters primary set
+
+ The memory lock/unlock capabilities were included because they were
+ used in the X11R6 terminal description for <STRONG>xterm</STRONG>. The <EM>box1</EM> capa-
+ bility is used in tic to help with terminal descriptions written
+ for AIX.