patch for Labels 1.1

[Joe S. Chen]

The getcwd() function in Labels 1.1 did not exist in standard BSD Unix
systems.  Below is a patch for main.c.

					Joe Chen

---------------------------------------------------------------------------
Phones at work: (213) 743-5363, (213) 743-5935; at home: (818) 571-5304
University Computing Services, University of Southern California
UUCP: {sdcrdcf, uscvax}!oberon!serl!joec
ARPA: joec%serl at oberon.usc.edu, joec%alheka at oberon.usc.edu
---------------------------------------------------------------------------

-----CUT HERE----------CUT HERE----------CUT HERE----------CUT HERE-----
*** main.c.old	Fri Feb 19 16:26:41 1988
--- main.c	Thu Feb 11 15:49:31 1988
***************
*** 95,101 ****
  #define T	1
  #define F	0
  
! extern char *malloc(), *getcwd();
  extern char *rev_date;			/* supplied by Makefile		    */
  extern FILE *yyin;			/* from lex			    */
  
--- 95,101 ----
  #define T	1
  #define F	0
  
! extern char *malloc(), *getwd();
  extern char *rev_date;			/* supplied by Makefile		    */
  extern FILE *yyin;			/* from lex			    */
  
***************
*** 161,167 ****
    DIR *dirp;			/* directory pointer */
    struct direct *dp;		/* pointer to a directory record */
    char *ext_ptr;		/* extension pointer */
!   char tmp[MAXNAMLEN+1], ch, *cur_dir;
    int header = F;
    FILE *f;
  
--- 161,167 ----
    DIR *dirp;			/* directory pointer */
    struct direct *dp;		/* pointer to a directory record */
    char *ext_ptr;		/* extension pointer */
!   char tmp[MAXNAMLEN+1], ch, dirbuf[255], *cur_dir;
    int header = F;
    FILE *f;
  
***************
*** 170,176 ****
      return;
    }
  
!   if ((cur_dir = getcwd(NULL, 100)) == (char *)NULL) {
      fprintf(stderr,"FATAL ERROR: Insufficient Memory\n");
      exit(-1);
    }
--- 170,176 ----
      return;
    }
  
!   if ((cur_dir = getwd(dirbuf)) == (char *)NULL) {
      fprintf(stderr,"FATAL ERROR: Insufficient Memory\n");
      exit(-1);
    }