marina mythtranscode # emerge -s glibc
Searching...
[ Results for search key : glibc ]
[ Applications found : 6 ]

*  app-doc/ebook-glibc [ Masked ]
      Latest version available: 2.2.4
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 803 kB
      Homepage:    http://lidn.sourceforge.net
      Description: ebook-glibc-2.2.4 ebook based on ebook eclass
      License:     OPL

*  app-emulation/emul-linux-ppc-glibc [ Masked ]
      Latest version available: 2.3.4.20041102-r1
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 13,104 kB
      Homepage:    http://www.gentoo.org/
      Description: GNU C Library for emulation of 32bit ppc on ppc64
      License:     GPL-2

*  app-emulation/emul-linux-x86-glibc [ Masked ]
      Latest version available: 1000
      Latest version installed: [ Not Installed ]
      Size of downloaded files: 0 kB
      Homepage:    http://www.gentoo.org/
      Description: GNU C Library for emulation of 32bit x86 on amd64
      License:     GPL-2

*  cross-alpha-unknown-linux-gnu/glibc
      Latest version available: 2.3.5-r3
      Latest version installed: 2.3.5-r2
      Size of downloaded files: 15,631 kB
      Homepage:    http://www.gnu.org/software/libc/libc.html
      Description: GNU libc6 (also called glibc2) C library
      License:     LGPL-2

*  cross-mips-unknown-linux-gnu/glibc
      Latest version available: 2.3.6-r2
      Latest version installed: 2.3.5-r2
      Size of downloaded files: 16,088 kB
      Homepage:    http://www.gnu.org/software/libc/libc.html
      Description: GNU libc6 (also called glibc2) C library
      License:     LGPL-2

*  sys-libs/glibc
      Latest version available: 2.3.5-r3
      Latest version installed: 2.3.5-r3
      Size of downloaded files: 15,631 kB
      Homepage:    http://www.gnu.org/software/libc/libc.html
      Description: GNU libc6 (also called glibc2) C library
      License:     LGPL-2




marina mythtranscode # emerge sys-libs/glibc -av

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild   R   ] sys-libs/glibc-2.3.5-r3  USE="nls pic -build -erandom -glibc-compat20 -glibc-omitfp -hardened -linuxthreads-tls -nptl -nptlonly -profile -userlocales" 26 kB