pkg/53627: DOSBox keyboard does not work on console (wscons)

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>Number:         53627
>Category:       pkg
>Synopsis:       DOSBox keyboard does not work on console (wscons)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 23 16:05:00 +0000 2018
>Originator:     Anonymous
>Release:        NetBSD 8.0
>Organization:
N/A
>Environment:
NetBSD ocean 8.0 NetBSD 8.0 (GENERIC) #0: Tue Jul 17 14:59:51 UTC 2018  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

>Description:
Keyboard in DOSBox run on the console (wscons) does not work as a linux-specific patch in DOSBox shifts scancodes (due to Linux shifting them by 8 apparently)
>How-To-Repeat:
pkg_add dosbox
(sudo) dosbox (on the console, not in xterm)
keyboard input is garbled, eg. 'a' (scancode 30) output 'u' (scancode 22)
>Fix:
remove or bypass following code in dosbox-0.74/src/gui/sdl_mapper.cpp
#if !defined (WIN32) && !defined (MACOSX) && !defined(OS2)
                /* Linux adds 8 to all scancodes */
                else key-=8;
#endif
rebuild/reinstall
dosbox (on the console)
keyboard input works as intended