C:\test>type test.asm
SEGMENT _BSSEND PUBLIC CLASS=BSSEND ALIGN=4096

GLOBAL __end
__end:

; GROUP DGROUP _TEXT _DATA _BSS _BSSEND
GROUP DGROUP _BSSEND

C:\test>nasm -f obj test.asm

C:\test>tlink /x/c/t test.obj,test.com,,
Turbo Link  Version 2.0  Copyright (c) 1987, 1988 Borland International
Invalid segment definition

C:\test>tdump test.obj
Turbo Dump  Version 4.1 Copyright (c) 1988, 1994 Borland International
                     Display of File TEST.OBJ

{snip}
000049 SEGDEF 1 : _BSSEND         PRIVATE PUBLIC  Class 'BSSEND'         Length: