Bug#349678: libxft-dev: pkg-config file says requires xproto that don't exist

[Mike Hommey <mh@glandium.org>]

Package: libxft-dev
Version: 2.1.8.2-1
Severity: critical
Justification: breaks unrelated software

The file /usr/lib/pkgconfig/xft.pc says xft requires xproto, which is
available in no package, as stated by apt-file.

Even if it existed, there should be a dependency to the dev package
holding it.

That breaks all packages that build depend on libxft and rely on
pkg-config to get the compilation and linking flags (such as mozilla,
thunderbird, firefox...).

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)