From localedef --help:
Output control:
...
--no-warnings=<warnings> Comma-separated list of warnings to disable;
supported warnings are: ascii, intcurrsym
...
--warnings=<warnings> Comma-separated list of warnings to enable;
supported warnings are: ascii, intcurrsym
Locales using SHIFT_JIS and SHIFT_JISX0213 character maps are not ASCII
compatible. In order to build locales using these character maps, and
have localedef exit with a status of 0, we add new option to localedef
to disable or enable specific warnings. The options are --no-warnings
and --warnings, to disable and enable specific warnings respectively.
The options take a comma-separated list of warning names. The warning
names are taken directly from the generated warning. When a warning
that can be disabled is issued it will print something like this: foo is
not defined [--no-warnings=foo]
For the initial implementation we add two controllable warnings; first
'ascii' which is used by the localedata installation makefile target to
install SHIFT_JIS and SHIFT_JISX0213-using locales without error; second
'intcurrsym' which allows a program to use a non-standard international
currency symbol without triggering a warning. The 'intcurrsym' is
useful in the future if country codes are added that are not in our
current ISO 4217 list, and the user wants to avoid the warning. Having
at least two warnings to control gives an example for how the changes
can be extended to more warnings if required in the future.
These changes allow ja_JP.SHIFT_JIS and ja_JP.SHIFT_JISX0213 to be
compiled without warnings using --no-warnings=ascii. The
localedata/Makefile $(INSTALL-SUPPORTED-LOCALES) target is adjusted to
automatically add `--no-warnings=ascii` for such charmaps, and likewise
localedata/gen-locale.sh is adjusted with similar logic.
v2: Bring verbose, be_quiet, and all warning control booleans into
record-status.c, and compile this object file to be used by locale,
iconv, and localedef. Any users include record-status.h.
v3: Fix an instance of boolean coercion in set_warning().
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
The builtin POSIX locale has "" as the international currency symbol,
but a non-builtin locale may not have such a blank int_curr_symbol.
Therefore to support non-builtin locales with similar "" int_curr_symbol
we adjust the LC_MONETARY parser to allow the normal 4-character
int_curr_symbol *and* the empty "" no symbol. Anything else remains
invalid.
Tested by building all the locales. Tested also with a custom C.UTF-8
locale with "" for int_curr_symbol.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
The error and warning handling in localedef, locale, and iconv
is a bit of a mess.
We use ugly constructs like this:
WITH_CUR_LOCALE (error (1, errno, gettext ("\
cannot read character map directory `%s'"), directory));
to issue errors, and read error_message_count directly from the
error API to detect errors. The problem with that is that the
code also uses error to print warnings, and informative messages.
All of this leads to problems where just having warnings will
produce an exit status as-if errors had been seen.
To fix this situation I have adopted the following high-level
changes:
* All errors are counted distinctly.
* All warnings are counted distinctly.
* All informative messages are not counted.
* Increasing verbosity cannot generate *more* errors, and
it previously did for errors conditional on verbose,
this is now fixed.
* Increasing verbosity *can* generate *more* warnings.
* Making the output quiet cannot generate *fewer* errors,
and it previously did for errors conditional on be_quiet,
this is now fixed.
* Each of error, warning, and informative message has it's
own function to call defined in record-status.h, and they
are: record_error, record_warning, and record_verbose.
* The record_error function always records an error, but
conditional on be_quiet may not print it.
* The record_warning function always records a warning,
but conditional on be_quiet may not print it.
* The record_verbose function only prints the verbose
message if verbose is true and be_quiet is false.
This has allowed the following fix:
* Previously any warnings were being treated as errors
because they incremented error_message_count, but now
we properly return an exit status of 1 if there are
warnings but output was generated.
All of this allows localedef to correctly decide if errors,
or warnings were present, and produce the correct exit code.
The locale and iconv programs now also use record-status.h
and we have removed the WITH_CUR_LOCALE hack, and instead
have internal push_locale/pop_locale functions centralized
in the record routines.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
2003-06-22 Petter Reinholdtsen <pere@hungry.com>
* locale/program/ld-monetary.c: Only check the first three
characters in int_curr_symbol against ISO-4217, to make the
separator character used by a locale independent of the content
in iso-4217.def.
* locale/iso-4217.def: Remove the space character from all
currency values to get the new test code in ld-monetary.c working.
2002-04-18 Ulrich Drepper <drepper@redhat.com>
* locale/programs/locfile.c (to_archive): New variable. To collect
data which has to be added to the locale archive.
(write_all_categories): Take new third parameter with locale name.
Unless no_archive flag set add new locale data to the archive
(write_locale_data): Unless no-archive flag set store generated data
in to_archive data structure instead of generation output file.
Add new parameter with locale category index.
* locale/programs/locfile.h: Add new parameters in declaractions of
write_all_categories and write_locale_data.
* locale/programs/localedef.c: Recognize --no-archive, --list-archive,
--add-to-archive, and --delete-from-archive options. Pass extra
parameter to write_all_categories.
* locale/programs/localedef.h: Add prototypes for functions in
locarchive.c.
* locale/locarchive.h: New file.
* locale/programs/locarchive.c: New file.
* locale/Makefile (distribute): Add programs/locarchive.c and
locarchive.h.
(localedef-modules): Add md5 and locarchive.
Add vpath to crypt subdir for md5.c.
* locale/programs/ld-address.c: Pass locale category ID as new second
parameter to write_locale_data.
* locale/programs/ld-collate.c: Likewise.
* locale/programs/ld-ctype.c: Likewise.
* locale/programs/ld-identification.c: Likewise.
* locale/programs/ld-measurement.c: Likewise.
* locale/programs/ld-messages.c: Likewise.
* locale/programs/ld-monetary.c: Likewise.
* locale/programs/ld-name.c: Likewise.
* locale/programs/ld-numeric.c: Likewise.
* locale/programs/ld-paper.c: Likewise.
* locale/programs/ld-telephone.c: Likewise.
* locale/programs/ld-time.c: Likewise.
* locale/simple-hash.c: Move compute_hashval function from here...
* locale/hashval.h: ...to here. New file.
* locale/simple-hash.h: Add prototype for compute_hashval.
* include/libintl.h: Minor cleanups.
* elf/reldep7.c: New file.
* elf/reldep7mod1.c: New file.
* elf/reldep7mod2.c: New file.
* elf/Makefile: Add rules to build and run reldep7.
for CRNCYSTR.
* locale/programs/ld-monetary.c (monetary_finish): Likewise.
functionality.
call me(). If in the middle of initializing, return NULL or
* manual/locale.texi: Add documentation for rpmatch.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2001-02-04 Ulrich Drepper <drepper@redhat.com>
* iconv/Makefile (iconv_prog-modules): Define. Add vpath to find
files in locale/programs. Add CFLAGS definition to allow compiling
localedef files.
* iconv/dummy-repertoire.c: New file.
* iconv/iconv_charmap.c: New file.
* iconv/iconv_prog.h: New file.
* iconv/iconv_prog.c: Make verbose and omit_invalid global.
(main): If parameter for -f and -t contain slashes try first to resolve
the strings as filenames of charmap files. Use them for conversion
in this case.
* iconvdata/run-iconv-test.sh: If charmaps exist also run tests with
iconv getting charmap names as parameters.
* locale/programs/linereader.c (lr_token): Take extra parameters
verbose and pass it to get_string.
(get_string): Take extra parameters verbose.
* locale/programs/charmap.c (parse_charmap): Take extra parameters
verbose and be_quiet. Change all callers of lr_token and
parse_charmap.
* locale/programs/charmap.h: Likewise.
* locale/programs/ld-address.c: Likewise.
* locale/programs/ld-collate.c: Likewise.
* locale/programs/ld-ctype.c: Likewise.
* locale/programs/ld-identification.c: Likewise.
* locale/programs/ld-measurement.c: Likewise.
* locale/programs/ld-messages.c: Likewise.
* locale/programs/ld-monetary.c: Likewise.
* locale/programs/ld-name.c: Likewise.
* locale/programs/ld-numeric.c: Likewise.
* locale/programs/ld-paper.c: Likewise.
* locale/programs/ld-telephone.c: Likewise.
* locale/programs/ld-time.c: Likewise.
* locale/programs/linereader.c: Likewise.
* locale/programs/linereader.h: Likewise.
* locale/programs/localedef.c: Likewise.
* locale/programs/locfile.c: Likewise.
* locale/programs/locfile.h: Likewise.
* locale/programs/repertoire.c: Likewise.
2000-04-19 Jakub Jelinek <jakub@redhat.com>
* locale/programs/ld-ctype.c (ctype_output): Set size of the idx
field to nelems * sizeof (uint32_t).
* locale/programs/ld-address.c (address_output): Align word fields
properly.
* locale/programs/ld-monetary.c (monetary_output): Likewise.
Don't restart idx pointers to idx end at the duo_int_curr_symbol
field.
Avoid giving arbitrary garbage in the crncystr field.
Use sizeof(uint32_t) instead of 4 for len in uno_valid_from,
uno_valid_to, duo_valid_from, duo_valid_to and conversion_rate
fields.
* locale/programs/ld-numeric.c (numeric_output): Likewise.
Don't restart idx pointers to idx end at the decimal_point_wc field.
* locale/programs/ld-time.c (time_output): week_1stday should be
word, not byte. Align it properly.
2000-04-19 H.J. Lu <hjl@gnu.org>
* csu/gmon-start.c (_start): Declared as "extern void".
(etext): Likewise.
2000-04-18 Andreas Jaeger <aj@suse.de>
* manual/install.texi (Running make install): Don't mention utmpd
anymore.
2000-04-18 Andreas Jaeger <aj@suse.de>
* linuxthreads/Versions: Use ld instead of ld.so.
* elf/Makefile (ld-map): Use ld.map.
* Versions.def: Use ld instead of ld.so.
* elf/Versions: Likewise.
* sysdeps/mach/hurd/Versions: Likewise.
2000-02-11 Ulrich Drepper <drepper@redhat.com>
* locale/langinfo.h: Make CRNCYSTR a separate entry instead of an
alias for CURRENCY_SYMBOL.
* locale/programs/ld-monetary.c: Add support to write out CRNCYSTR
information. [PR libc/1583].
2000-01-29 Ulrich Drepper <drepper@redhat.com>
* locale/programs/ld-monetary.c (STR_ELEM_WC): Fix test for too
long string in definition.
* locale/programs/ld-numeric.c (STR_ELEM): Likewise.
* configure.in: Add check for recent enough sed version.
2000-01-28 Ulrich Drepper <drepper@cygnus.com>
* locale/C-monetary.c: Add initializers for new fields.
* locale/C-numeric.c: Likewise.
* locale/Makefile (distribute): Add indigits.h, indigitswc.h,
outdigits.h, and outdigitswc.h.
* locale/langinfo.h: Add _NL_MONETARY_DECIMAL_POINT_WC,
_NL_MONETARY_THOUSANDS_SEP_WC, _NL_NUMERIC_DECIMAL_POINT_WC,
and _NL_NUMERIC_THOUSANDS_SEP_WC.
* locale/indigits.h: New file.
* locale/indigitswc.h: New file.
* locale/outdigits.h: New file.
* locale/outdigitswc.h: New file.
* locale/programs/ld-monetary.c: Write out decimal point and
thousands separator info in wide character form.
* locale/programs/ld-numeric.c: Likewise.
* stdio-common/Makefile (routines): Add _i18n_itoa and _i18n_itowa.
(distribute): Add _i18n_itoa.h and _i18n_itowa.h.
* stdio-common/_i18n_itoa.c: New file.
* stdio-common/_i18n_itoa.h: New file.
* stdio-common/_i18n_itowa.c: New file.
* stdio-common/_i18n_itowa.h: New file.
* stdio-common/printf-parse.h: Parse 'I' flag.
* stdio-common/printf.h (struct printf_info): Add i18n field.
* stdio-common/vfprintf.c: Implement 'I' flag to print using locales'
outdigits.
1999-12-23 Ulrich Drepper <drepper@cygnus.com>
* locale/en_BW: New file.
* locale/en_ZW: New file.
Contributed by Schalk W. Cronj <schalkc@ntaba.co.za>.
Contributed by Schalk W. Cronj <schalkc@ntaba.co.za>.
* locale/programs/ld-ctype.c (ctype_output): Correct sizes of mapping
arrays.
(allocate_arrays): Allocate memory for map32. Correctly install
default values in it and install defined mappings.
* locale/programs/ld-monetary.c (monetary_finish): Provide default
value for mon_grouping.
1999-09-12 Ulrich Drepper <drepper@cygnus.com>
* locale/programs/ld-address.c: Fix handling of non-existing
definitions for this category. Correctly ignore content of this
category is this is necessary.
* locale/programs/ld-collate.c: Likewise.
* locale/programs/ld-ctype.c: Likewise.
* locale/programs/ld-identification.c: Likewise.
* locale/programs/ld-measurement.c: Likewise.
* locale/programs/ld-messages.c: Likewise.
* locale/programs/ld-monetary.c: Likewise.
* locale/programs/ld-name.c: Likewise.
* locale/programs/ld-numeric.c: Likewise.
* locale/programs/ld-paper.c: Likewise.
* locale/programs/ld-telephone.c: Likewise.
* locale/programs/ld-time.c: Likewise.
* locale/programs/locfile.h (handle_copy): Take extra parameter
with result pointer. Fill in name of locale from which to copy.
Correctly read token after `END'.
* locale/programs/localedef.c (main): Correct handling copy.
(add_to_readlist): Take extra parameter which says whether we
are supposed to read the file or not.
(find_locale): Call add_to_readlist with extra parameter set to 0.
* locale/programs/localedef.h (struct localedef_t): Use __LC_LAST
instead of wrong number in array definitions.
(add_to_readlist): Update prototype.
* locale/programs/locfile.c (locfile_read): Mark categories not
available in source file as read.
(write_all_categories): Fix typo.
1999-04-03 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/install.texi (Configuring and compiling): Explain that
files are changed in the source directory.
Closes PR libc/981.
(Configuring and compiling): Explain situation with PARALLELMFLAGS
in the source directory.
1999-04-24 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* locale/programs/ld-ctype.c: Spelling fixes.
(ctype_finish): Fix argument of error message format.
* locale/programs/ld-messages.c: Spelling fixes.
* locale/programs/ld-monetary.c: Spelling fixes.
* locale/programs/ld-time.c (time_finish): Make sure that name and
format of era_entries are adjacent.
(time_output): Reduce the size of the io vector.
1999-04-25 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* manual/filesys.texi (Attribute Meanings): Move a misplaced
paragraph.
1999-04-23 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* locale/programs/ld-collate.c (collate_output): Convert
undefined_offset to an array index. Fix computation of other
endian extra table.
1997-02-19 03:28 Miles Bader <miles@gnu.ai.mit.edu>
* argp/argp-help.c: Add support for user provided filter of help
messages.
* argp/argp-parse.c: Likewise.
* argp/argp.h: Likewise.
* argp/argp-namefrob.h: Define __argp_input.
* argp/argp-test.c: Add example for filter.
1997-02-19 02:58 Ulrich Drepper <drepper@cygnus.com>
* argp.h: New file.
* locale/programs/locale.c: Switch to use argp.
* errno.h: Make it possible to get definition of error_t even
after having errno.h already.
* elf/dl-hash.h: New file. ELF hashing function. Extracted
from dl-lookup.c.
* elf/dl-lookup.c (_dl_elf_hash): Remove definition.
* elf/dl-load.c: Rename _dl_does_name_match_p to _dl_name_match_p.
* elf/dl-version.c: Likewise.
* elf/dl-lookup.c: Implement new versioning lookup scheme.
* elf/dl-version.c (_dl_check_map_versions): Initialize new field
in l_versions member.
* elf/dlvsym.c: Correct call of _dl_lookup_versioned_symbol_skip
and _dl_lookup_versioned_symbol.
* elf/link.h: Rename hash_name_pair to struct r_found_version.
* sysdeps/alpha/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* intl/l10nflist.c: (_nl_make_l10nflist): Fix bug in computation of
length of abs_filename.
* locale/Makefile (CPPFLAGS): Define LOCALE_ALIAS_PATH.
* locale/programs/ld-monetary.c (monetary_add): Allow value 0
in mon_grouping information. This means no more grouping.
* locale/programs/ld-numeric.c (numeric_add): Write value \377
when seein value 0 in grouping information.
* locale/programs/linereader.c (lr_close): Don't free fname since
it might be used in error messages.
* locale/programs/locale.c: Check whether output of `locale -a'
really is locale directory. Also print locale aliases.
* misc/search.h (__action_fn_t): Parameters VALUE and LEVEL cannot
be const.
1997-02-19 02:16 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/bsd/sun/sunos4/resourcebits.h: Correct #defin to
#define. Reported by Rick Flower <FLOWER@sdvax2.sdd.TRW.COM>.
1997-02-19 01:37 Erik Troan <ewt@redhat.com>
* shadow/sgetspent_r.c: Accept empty third, fourth and fifth fields.
1997-02-19 01:02 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/mman/syscalls.list: msync takes 3 arguments.
Reported by Andreas Jaeger <aj@arthur.pfalz.de>.
* sysdeps/stub/msync.c (msync): Add missing third parameter.
1997-02-19 00:29 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/bsd/sigsuspend.c: Call __sigpause with needed
additional argument.
1997-02-18 22:13 Ulrich Drepper <drepper@cygnus.com>
* inet/net/ethernet.h: New file.
* sysdeps/unix/sysv/linux/netinet/if_ether.c: Add BSD compatibility.
* sysdeps/unix/sysv/linux/net/if_slip.h: New file.
Contributed by a sun <asun@zoology.washington.edu>.
* sysdeps/unix/sysv/linux/net/if_arp.h: Include <sys/socket.h>.
* sunrpc/rpc/rpc_msg.h: Include <rpc/clnt.h>.
Reported by a sun <asun@zoology.washington.edu>.
1997-02-16 14:25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules ((common-objpfx)distinfo-$(subdir)): Depend on sysdep
makefiles which may change the distinfo variables.
1997-02-16 14:03 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers)
[$(subdir)=misc]: Add sys/quota.h.
(sysdep_headers) [$(subdir)=inet]: Add netinet/udp.h.
1997-02-17 13:12 aleph1@dfw.net
* sunrpc/clnt_simp.c (callrpc): Prevent buffer overflow by using
strncpy.
1997-02-18 03:28 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/bug10.c (main): Correct parameter.
1997-02-17 02:51 Ulrich Drepper <drepper@cygnus.com>
* malloc/obstack.h: Add `extern "C"' protection.
* posix/regex.h: Likewise.
* io/ftw.h: Likewise.
* misc/libgen.h: Likewise.
* login/utmp.h: Likewise.
* sysdeps/unix/sysv/linux/sys/reboot.h: Likewise.
* sysdeps/unix/sysv/linux/netinet/in.h: Likewise.
* sunrpc/rpc/pmap_rmt.h: Likewise.
* sunrpc/rpc/auth_des.h: Likewise.
* elf/link.h: Likewise.
Reported by HJ Lu.
1997-02-17 01:45 a sun <asun@zoology.washington.edu>
Linux specific network headers.
* sysdeps/unix/sysv/linux/netinet/if_fddi.h: New file.
* sysdeps/unix/sysv/linux/netinet/if_tr.h: New file.
* sysdeps/unix/sysv/linux/netinet/ip_icmp.h: New file.
* sysdeps/unix/sysv/linux/netinet/ip_fw.h: New file.
* sysdeps/unix/sysv/linux/netinet/igmp.h: New file.
* sysdeps/unix/sysv/linux/netinet/icmp.h: New file.
* sysdeps/unix/sysv/linux/netinet/ip.h: New file.
* sysdeps/unix/sysv/linux/netinet/tcp.h: New file.
* sysdeps/unix/sysv/linux/netipx/ipx.h: New file.
* sysdeps/unix/sysv/linux/netatalk/atalk.h: New file.
* sysdeps/unix/sysv/linux/Dist: Add new network headers.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=misc] (sysdep_headers):
Add sys/quota.h.
[$(subdir)=inet] (sysdep_headers): Add new network header.
* sysdeps/unix/sysv/linux/netinet/udp.h: Add Linux specific changes.
* inet/netinet/ip.h: Move to sysdeps/generic.
* inet/netinet/tcp.h: Likewise.
* sysdeps/generic/netinet/ip.h: Moved to here from inet/netinet.
* sysdeps/generic/netinet/tcp.h: Likewise.
1997-02-17 01:18 Ulrich Drepper <drepper@cygnus.com>
* misc/sys/syslog.h (prioritynames): Correct definition to use
braces where necessary.
(facilitynames): Likewise.
Patch by Ronald F. Guilmette <rfg@monkeys.com>.
Comment and beautify declarations.
1997-02-16 19:54 1997 Philip Blundell <Philip.Blundell@pobox.com>
* inet/Makefile (routines): Add in6_addr, getnameinfo.
* inet/getnameinfo.c: New file. Implementation of getnameinfo()
by Craig Metz.
* inet/in6_addr.c: New file. IPv6 addressing constants.
* posix/Makefile (routines): Add gai_strerror.
* resolv/netdb.h: Add more constants for IPv6 basic API.
* sysdeps/posix/gai_strerror.c: New file.
* sysdeps/stub/gai_strerror.c New file.
* sysdeps/unix/sysv/linux/netinet/in.h: Add definitions for IPv6
basic API.
* sysdeps/posix/getaddrinfo.c: Update from latest version by
Craig Metz and use reentrant getXXbyYY functions.
1997-02-15 14:32 Andreas Jaeger <aj@arthur.pfalz.de>
* argp/argp.h: Declare argp_program_version as const char.
* argp/argp-test.c: Likewise
* stdlib/testrand.c (main): Declare main prototype.
* stdlib/testdiv.c (main): Likewise.
* string/testcopy.c (main): Likewise.
* string/test-ffs.c (main): Likewise.
* time/test_time.c (main): Likewise.
* locale/duplocale.c (__duplocale): Return result.
1997-02-16 03:54 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/netinet/in.h: Declare bindresvport.
Reported by fabsoft@fabserver1.zarm.uni-bremen.de.
* nss/nss.h: Remove declaration of __nss_shlib_revision.
* nss/nsswitch.c: Don't use NSS_SHLIB_VERSION macro.
1997-02-16 03:48 Thorsten Kukuk <kukuk@weber.uni-paderborn.de>
* nis/nss_nis/nis-ethers.c (_nss_nis_getethernam_r): Rename to
_nss_nis_gethostton_r.
(_nss_nis_getetherbyaddr_r): Rename to _nss_nis_getntohost_r.
1997-02-15 22:37 Andy Berkheimer <andy@tho.org>
* resolv/gethnamaddr.c (gethostbyname2): Test for ':' in name before
trying to resolv name as numeric IPv6 address.
* nss/digits_dots.c: Likewise.
Sat Feb 15 04:51:08 1997 Ulrich Drepper <drepper@cygnus.com>
* locale/setlocale.c (setlocale): Don't try to be clever about
unused locales. When the existence of the locale files isn't
tested the result of setlocale might be different.
1997-02-15 03:34 Ulrich Drepper <drepper@cygnus.com>
* locale/setlocale.c (setlocale): Don't increment usage_count of
new locale if it already has the value MAX_USAGE_COUNT (it might
be the C locale data which is read-only).
