Michael McConville wrote:
> Index: mv.c
> ===================================================================
> RCS file: /cvs/src/bin/mv/mv.c,v
> retrieving revision 1.40
> diff -u -p -r1.40 mv.c
> --- mv.c      24 Aug 2015 00:10:59 -0000      1.40
> +++ mv.c      14 Sep 2015 13:38:13 -0000
> @@ -348,7 +348,7 @@ copy(char *from, char *to)
>       pid_t pid;
>  
>       if ((pid = vfork()) == 0) {
> -             execl(_PATH_CP, "cp", "-PRp", "--", from, to, (char *)NULL);
> +             execl(_PATH_CP, "cp", "-PRp", "--", from, to, NULL);
>               warn("%s", _PATH_CP);
>               _exit(1);
>       }
> @@ -366,7 +366,7 @@ copy(char *from, char *to)
>               return (1);
>       }
>       if (!(pid = vfork())) {
> -             execl(_PATH_RM, "cp", "-rf", "--", from, (char *)NULL);
> +             execl(_PATH_RM, "cp", "-rf", "--", from, NULL);
>               warn("%s", _PATH_RM);
>               _exit(1);
>       }
> 

I don't know where we stand on this. It was previously necessary to have the
cast because otherwise NULL would only get passed as an integer, not a pointer
(long). We have fixed NULL in our headers, but the cast may still be the
correct incantation for some systems. I think the best approach is to delete
casts in other more obvious places, but leave these alone for now.

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