Bug#433500: libc6-dev uninstallable

[Claudio Saavedra <csaavedra@alumnos.utalca.cl>]

Package: libc6-dev
Severity: grave
Justification: renders package unusable

After having upgraded Debian, libc6-dev got uninstalled. Now I can't 
install it. Apt reports the following:

Package libc6-dev is not available, but is referred to by another 
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  linux-kernel-headers
E: Package libc6-dev has no installation candidate



-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.20-1-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libc6-dev depends on:
ii  libc6                         2.6-2      GNU C Library: Shared libraries
ii  linux-kernel-headers          2.6.18-7   Linux Kernel Headers for developme

Versions of packages libc6-dev recommends:
ii  gcc-3.4 [c-compiler]      3.4.6-5        The GNU C compiler
ii  gcc-4.0 [c-compiler]      4.0.3-7        The GNU C compiler
ii  gcc-4.2 [c-compiler]      4.2-20070712-1 The GNU C compiler