CRTSCTS wrong in man tcsetattr

[Karel Kulhavy]

Man tcsetattr in gentoo implicitly states that after
#include <termios.h>
#include <unistd.h>

CRTSCTS constant will be defined. This is however false:
tty.c:38: error: `CRTSCTS' undeclared (first use in this function)

CRTSCTS is defined in bits/termios.h and in asm/termbits.h The question
is what is the correct state of affairs?
1) the manpage should say bits/termios.h instead of termios.h
2) the manpage should say asm/termbits.h instead of termios.h
3) the termios.h should include bits/termios.h or asm/termbits.h
4) the manpage should not mention CRTSCTS at all

CL<
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