[tin-bugs] Tin 2.6.4 build fails when using --disable-locale

[Kevin Koster]

The linker fails with this error if Tin 2.6.4 is configured with
"--disable-locale":

Linking tin v2.6.4 ...
gcc  -o ./tin ./heapsort.o ./active.o ./art.o ./attrib.o ./auth.o ./charset.o ./color.o ./config.o ./cook.o ./curses.o ./debug.o ./envarg.o ./feed.o ./filter.o ./getline.o ./global.o ./group.o ./hashstr.o ./header.o ./help.o ./inews.o ./init.o ./joinpath.o ./keymap.o ./lang.o ./langinfo.o ./list.o ./lock.o ./mail.o ./main.o ./memory.o ./mimetypes.o ./misc.o ./my_tmpfile.o ./newsrc.o ./nntplib.o ./nntps.o ./nrctbl.o ./options_menu.o ./page.o ./parsdate.o ./pgp.o ./post.o ./prompt.o ./read.o ./refs.o ./regex.o ./rfc1524.o ./rfc2045.o ./rfc2046.o ./rfc2047.o ./save.o ./screen.o ./search.o ./select.o ./sigfile.o ./signal.o ./snprintf.o ./strftime.o ./string.o ./tags.o ./tcurses.o ./thread.o ./version.o ./wildmat.o ./xref.o -L../pcre -lpcre  -lcurses -lz  -lrt  
./string.o(.text+0xebd): In function `parse_format_string':
: undefined reference to `art_mark_width'
collect2: ld returned 1 exit status
make[1]: *** [tin] Error 1

It seems art_mark_width doesn't exist if NO_LOCALE is defined.

I thought this might fix it:

--- a/src/string.c      2025-07-21 22:47:17.469944004 +1000
+++ b/src/string.c      2025-07-21 22:47:32.309944924 +1000
@@ -1743,7 +1743,11 @@
                                /* Article marks */
                                if ((cCOLS > min_cols && cCOLS < max_cols) && !(flags & ART_MARKS) && (signal_context == cGroup || signal_context == cThread)) {
                                        flags |= ART_MARKS;
+#if defined(MULTIBYTE_ABLE) && !defined(NO_LOCALE)
                                        cnt += (art_mark_width + 2);
+#else
+                                       cnt += 3;
+#endif /* MULTIBYTE_ABLE && !NO_LOCALE */
                                } else
                                        out -= 2;
                                break;

Then it builds, but I'm getting occasional crashes at the thread view
which only happen with my "--disable-locale" build. So maybe I
misunderstood that code, or there's another issue.