how to know the GLIBC version and update it in ubuntu?

[loody]

hi:


2010/12/12 Karl Larsen <klarsen1 at gmail.com>:
> On 12/11/2010 09:36 AM, loody wrote:
>>
>> Dear all:
>> How could I know the version of GLIBC I used in ubuntu?
>> ( I type gcc -v, but I only see the version of gcc)
>> And how could I update the glibc?
>> (sudo apt-get install glibc?)
>> appreciate your help,
>> miloody
>>
>>
>
>    Here is what I have in an up to date Ubuntu 10.04:
>
> karl at Lucid:~$ gcc -v
> Using built-in specs.
> Target: x86_64-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Ubuntu
> 4.4.3-4ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
> --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
> --enable-multiarch --enable-linker-build-id --with-system-zlib
> --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
> --with-gxx-include-dir=/usr/include/c++/4.4 --program-suffix=-4.4
> --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-plugin
> --enable-objc-gc --disable-werror --with-arch-32=i486 --with-tune=generic
> --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
> --target=x86_64-linux-gnu
> Thread model: posix
> gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5)
> karl at Lucid:~$
>
> Did you get something like this?
>
> I can write in any computer code you like.
>
> 73 Karl
my output is as below:

$ gcc -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
4.4.1-4ubuntu9'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--enable-shared --enable-multiarch --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4
--program-suffix=-4.4 --enable-nls --enable-clocale=gnu
--enable-libstdcxx-debug --enable-objc-gc --enable-targets=all
--disable-werror --with-arch-32=i486 --with-tune=generic
--enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu
--target=i486-linux-gnu
Thread model: posix
gcc version 4.4.1 (Ubuntu 4.4.1-4ubuntu9)
$
appreciate your help,
miloody