[Bug 257886] ls: don't check color env variables if compiled with WITHOUT_LS_COLORS="YES"

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257886

Piotr Pawel Stefaniak <pstef@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pstef@freebsd.org

--- Comment #2 from Piotr Pawel Stefaniak <pstef@freebsd.org> ---
Hi,

I agree with you, but I would fix this another way: since the warnx is
generally useless, I would like to remove it. But Ed pointed out that we may
want to have a way to determine whether a particular copy of ls has been
compiled with color support or not. So I think it's best to move the warnx to
getopt in a WITHOUT_LS_COLORS build to fire if user asks for color. Like this:

diff --git a/bin/ls/ls.c b/bin/ls/ls.c
index 338b3d1d2a2..92575711251 100644
--- a/bin/ls/ls.c
+++ b/bin/ls/ls.c
@@ -105,9 +105,7 @@ static void  traverse(int, char **, int);

 static const struct option long_opts[] =
 {
-#ifdef COLORLS
         {"color",       optional_argument,      NULL, COLOR_OPT},
-#endif
         {NULL,          no_argument,            NULL, 0}
 };

@@ -448,8 +446,8 @@ main(int argc, char *argv[])
                case 'y':
                        f_samesort = 1;
                        break;
-#ifdef COLORLS
                case COLOR_OPT:
+#ifdef COLORLS
                        if (optarg == NULL || do_color_always(optarg))
                                colorflag = COLORFLAG_ALWAYS;
                        else if (do_color_auto(optarg))
@@ -460,6 +458,8 @@ main(int argc, char *argv[])
                                errx(2, "unsupported --color value '%s' (must
be always, auto, or never)",
                                    optarg);
                        break;
+#else
+                       warnx("color support not compiled in");
 #endif
                default:
                case '?':
@@ -503,8 +503,6 @@ main(int argc, char *argv[])
                        f_color = 1;
                        explicitansi = true;
                }
-#else
-               warnx("color support not compiled in");
 #endif /*COLORLS*/
        }

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