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diff --git a/lib/libcurses/curs_touch.3 b/lib/libcurses/curs_touch.3
new file mode 100644
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+++ b/lib/libcurses/curs_touch.3
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+.TH curs_touch 3X ""
+.SH NAME
+\fBtouchwin\fR, \fBtouchline\fR, \fBuntouchwin\fR,
+\fBwtouchln\fR, \fBis_linetouched\fR, \fBis_wintouched\fR -
+\fBcurses\fR refresh control routines
+.SH SYNOPSIS
+\fB#include <curses.h>\fR
+.br
+\fBint touchwin(WINDOW *win);\fR
+.br
+\fBint touchline(WINDOW *win, int start, int count);\fR
+.br
+\fBint untouchwin(WINDOW *win);\fR
+.br
+\fBint wtouchln(WINDOW *win, int y, int n, int changed);\fR
+.br
+\fBint is_linetouched(WINDOW *win, int line);\fR
+.br
+\fBint is_wintouched(WINDOW *win);\fR
+.br
+.SH DESCRIPTION
+The \fBtouchwin\fR and \fBtouchline\fR routines throw away all
+optimization information about which parts of the window have been
+touched, by pretending that the entire window has been drawn on.  This
+is sometimes necessary when using overlapping windows, since a change
+to one window affects the other window, but the records of which lines
+have been changed in the other window do not reflect the change.  The
+routine \fBtouchline\fR only pretends that \fIcount\fR lines have been
+changed, beginning with line \fIstart\fR.
+
+The \fBuntouchwin\fR routine marks all lines in the window as unchanged since
+the last call to \fBwrefresh\fR.
+
+The \fBwtouchln\fR routine makes \fIn\fR lines in the window, starting
+at line \fIy\fR, look as if they have (\fIchanged\fR\fB=1\fR) or have
+not (\fIchanged\fR\fB=0\fR) been changed since the last call to
+\fBwrefresh\fR.
+
+The \fBis_linetouched\fR and \fBis_wintouched\fR routines return
+\fBTRUE\fR if the specified line/window was modified since the last
+call to \fBwrefresh\fR; otherwise they return \fBFALSE\fR.  In
+addition, \fBis_linetouched\fR returns \fBERR\fR if \fIline\fR is not
+valid for the given window.
+.SH RETURN VALUE
+All routines return the integer \fBERR\fR upon failure and an integer value
+other than \fBERR\fR upon successful completion, unless otherwise noted in the
+preceding routine descriptions.
+.SH PORTABILITY
+The XSI Curses standard, Issue 4 describes these functions.
+
+Some historic curses implementations had, as an undocumented feature, the
+ability to do the equivalent of \fBclearok(..., 1)\fR by saying
+\fBtouchwin(stdscr)\fR or \fBclear(stdscr)\fR.  This will not work under
+curses.
+.SH NOTES
+Note that all routines except \fBwtouchln\fR may be macros.
+.SH SEE ALSO
+\fBcurses\fR(3X), \fBcurs_refresh\fR(3X).
+.\"#
+.\"# The following sets edit modes for GNU EMACS
+.\"# Local Variables:
+.\"# mode:nroff
+.\"# fill-column:79
+.\"# End: