in fakechroot mode, do not create symlinks to non-existing /proc

mmdebstrap

@@ -698,6 +698,10 @@ sub setup {
 	    } elsif ($type == 1) { # hardlink
 		die "type 1 not implemented";
 	    } elsif ($type == 2) { # symlink
+		if ($options->{mode} eq 'fakechroot' and $linkname =~ /^\/proc/) {
+		    # there is no /proc in fakechroot mode
+		    next;
+		}
 		symlink $linkname, "$options->{root}/$fname" or die "cannot create symlink $fname";
 		next; # chmod cannot work on symlinks
 	    } elsif ($type == 3) { # character special
@@ -1110,6 +1114,10 @@ sub setup {
 			die "type 1 not implemented";
 		    } elsif ($type == 2) { # symlink
 			if (!$options->{havemknod}) {
+			    if ($options->{mode} eq 'fakechroot' and $linkname =~ /^\/proc/) {
+				# there is no /proc in fakechroot mode
+				next;
+			    }
 			    symlink $linkname, "$options->{root}/$fname" or die "cannot create symlink $fname";
 			}
 		    } elsif ($type == 3 or $type == 4) { # character/block special
@@ -1179,6 +1187,10 @@ sub setup {
 			die "type 1 not implemented";
 		    } elsif ($type == 2) { # symlink
 			if (!$options->{havemknod}) {
+			    if ($options->{mode} eq 'fakechroot' and $linkname =~ /^\/proc/) {
+				# there is no /proc in fakechroot mode
+				next;
+			    }
 			    unlink "$options->{root}/$fname" or die "cannot unlink $fname: $!";
 			}
 		    } elsif ($type == 3 or $type == 4) { # character/block special