On 28 June 2011 08:13, eric <fsshl@xxxxxxx> wrote:
> On Tue, 2011-06-28 at 01:16 +0100, Jonathan Wakely wrote:
>> On 28 June 2011 01:14, eric wrote:
>> > On Tue, 2011-06-28 at 00:57 +0100, Jonathan Wakely wrote:
>> >> On 28 June 2011 00:31, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote:
>> >> > On 28 June 2011 00:04, eric wrote:
>> >> >>
>> >> >>> You need to configure gcc with --enable-clocale=gnu and reinstall it.
>> >> >>>
>> >> >>> That should be the default on GNU/Linux but apparently your system is
>> >> >>> missing something necessary to support named locales.
>> >> >>
>> >> >> so I do
>> >> >> ./configure --enable-clocale=gnu
>> >> >
>> >> > (You obviously didn't read the installation docs, you're not supposed
>> >> > to run ./configure in the source directory)
>> >> >
>> >> > Did it actually enable the gnu locale model? You might need to check
>> >> > $TARGET/libstdc++-v3/config.log or compare which header files are
>> >> > installed. Noone can tell if you have the GNU locale model installed
>> >> > successfully.
>> >> >
>> >> > Or why don't you just install gcc from Ubuntu's package manager?
>> >> > Surely GCC 4.5 is available?
>> >> >
>> >> Actually you probably do have the GNU locale code installed, I missed
>> >> that you can get the same error from the GNU model:
>> >>
>> >> void
>> >> locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s,
>> >> __c_locale __old)
>> >> {
>> >> __cloc = __newlocale(1 << LC_ALL, __s, __old);
>> >> if (!__cloc)
>> >> {
>> >> // This named locale is not supported by the underlying OS.
>> >> __throw_runtime_error(__N("locale::facet::_S_create_c_locale "
>> >> "name not valid"));
>> >> }
>> >> }
>> >>
>> >> So the problem must be with your glibc setup.
>> >>
>> >> Is en_US.utf8 listed in /etc/locale.gen? Any other locales?
>> >> Uncomment the ones you want to support, then try running
>> >> /usr/sbin/locale-gen as root
>
> And I do this step, after I copy that link's sample locale.gen on my
> /etc/ directory.
>
>> >> (I don't know if that's the right way to generate locale data for
>> >> Ubuntu, you might want to ask on an Ubuntu forum)
>> >>
>> >> I've just tried it on a Debian box which only has en_US.utf8 locale
>> >> data installed, and Axel's test program worked ok and running "./a.out
>> >> en_US.utf8" wrote to the file unicode.txt, so the problem is not with
>> >> the code or gcc.
>> > ----------------------------
>> > my system don't have /etc/locale.gen
>> > but
>> > it have /etc/locale.alias
>>
>> That isn't the same.
>>
>> You'll need to find someone who knows how to install localization data
>> files on Ubuntu.
>>
>> This isn't a gcc issue.
> ------------------------------------------------------------
> I follow the link and its suggestion(hardway)
> --
> http://people.debian.org/~schultmc/locales.html
>
> --------------
>
> A sample /etc/locale.gen
> # This file lists locales that you wish to have built. You can find a list
> # of valid supported locales at /usr/share/i18n/SUPPORTED. Other
> # combinations are possible, but may not be well tested. If you change
> # this file, you need to rerun locale-gen.
> #
> # XXX GENERATED XXX
> #
> # NOTE!!! If you change this file by hand, and want to continue
> # maintaining manually, remove the above line. Otherwise, use the command
> # "dpkg-reconfigure locales" to manipulate this file. You can manually
> # change this file without affecting the use of debconf, however, since it
> # does read in your changes.
>
> en_US.UTF-8 UTF-8
> ----------------------------------------------------------------
> then run again test code
Did you run locale-gen?
> Not work
> same error, by out << sw2 << endl;
> out.good() is 0
> and when I use no argument, just ./a.out, error
> can not generate locale
>
> looking to see any experienced c/g++ and ubuntu/linux programer's help
> thanks a lot in advance
> Eric
>
>
>
