Change file for wmerge, for MSDOS and Borland C++ 3.1.To compile the C file:  bcc -w-pro wmerge.c (This file contributed by Barry Schwartz, trashman@crud.mn.org, 28 Jun 94.)(Updated 17 Jul 06 by Don Knuth.) @x Section 19.    cur_file_name[l]='/'; /* \UNIX/ pathname separator */@y    cur_file_name[l]='/'; /* A valid {\mc MSDOS} pathname separator */@z  @x Section 33.        if (*s=='.') dot_pos=s++;        else if (*s=='/') dot_pos=NULL,++s;        else s++;@y        if (*s=='.') dot_pos=s++;        else if (*s==':' || *s=='\\' || *s=='/') dot_pos=NULL,++s;        else s++;@z