Paul Eggert wrote:
> I thought programs in macOS etc. start off in the "C" locale,
> and that this locale uses UTF-8.
Yes, I was focused on macOS etc. too. But the same problem exists
also on GNU systems; therefore it is better to think about these
systems in the first place, and about macOS etc. only later.
> I'd like to avoid the use of setlocale even in these environments, if
> possible, as gzip is supposed to be small and "primitive".
If you are worried about startup time, one possibility is to delay
the setlocale (LC_CTYPE, "") invocation until just before each
diagnostic.
> But I agree
> that the behavior in current master is bad. I'll try to think of a
> better solution.
The way it's done in all other packages that use quotearg (e.g. coreutils)
is a reasonable one. 'echo' is "small and primitive" as well, and still
uses setlocale:
$ nm -D /bin/echo | grep ' U '
U abort@GLIBC_2.2.5
U __assert_fail@GLIBC_2.2.5
U bindtextdomain@GLIBC_2.2.5
U calloc@GLIBC_2.2.5
U __ctype_b_loc@GLIBC_2.3
U __ctype_get_mb_cur_max@GLIBC_2.2.5
U __cxa_atexit@GLIBC_2.2.5
U dcgettext@GLIBC_2.2.5
U __errno_location@GLIBC_2.2.5
U _exit@GLIBC_2.2.5
U exit@GLIBC_2.2.5
U fclose@GLIBC_2.2.5
U fcntl@GLIBC_2.2.5
U fflush@GLIBC_2.2.5
U fflush_unlocked@GLIBC_2.2.5
U fileno@GLIBC_2.2.5
U __fpending@GLIBC_2.2.5
U __fprintf_chk@GLIBC_2.3.4
U fputc_unlocked@GLIBC_2.2.5
U fputs_unlocked@GLIBC_2.2.5
U __freading@GLIBC_2.2.5
U free@GLIBC_2.2.5
U fseeko@GLIBC_2.2.5
U fwrite_unlocked@GLIBC_2.2.5
U getenv@GLIBC_2.2.5
U iswprint@GLIBC_2.2.5
U __libc_start_main@GLIBC_2.34
U lseek@GLIBC_2.2.5
U malloc@GLIBC_2.2.5
U mbrtoc32@GLIBC_2.16
U mbsinit@GLIBC_2.2.5
U memcmp@GLIBC_2.2.5
U memcpy@GLIBC_2.14
U memset@GLIBC_2.2.5
U nl_langinfo@GLIBC_2.2.5
U __overflow@GLIBC_2.2.5
U __printf_chk@GLIBC_2.3.4
U realloc@GLIBC_2.2.5
U setlocale@GLIBC_2.2.5
U strchr@GLIBC_2.2.5
U strcmp@GLIBC_2.2.5
U strcspn@GLIBC_2.2.5
U strerror_r@GLIBC_2.2.5
U strlen@GLIBC_2.2.5
U strncmp@GLIBC_2.2.5
U strrchr@GLIBC_2.2.5
U strspn@GLIBC_2.2.5
U textdomain@GLIBC_2.2.5
U __vfprintf_chk@GLIBC_2.3.4
Bruno
