Bug#511609: depends or recommends pkg-config?

[Jack Bates]

Package: libgnutls-dev
Version: 2.4.2-4
Severity: minor

Should libgnutls-dev depends or recommends pkg-config?

mod-gnutls build-depends on libgnutls-dev, but I got this error building the latest version of the package:

[...]
checking whether to build static libraries... yes
checking for Apache 2.0 version >= 2.0.40... yes
checking whether DEFAULT_EXP_LIBEXECDIR is declared... no
checking for pkg-config... no
checking for libgnutls - version >= 2.4.0... no
*** The pkg-config script installed by LIBGNUTLS could not be found
*** If LIBGNUTLS was installed in PREFIX, make sure PREFIX/bin is in
*** your path, or set the PKG_CONFIG environment variable to the
*** full path to pkg-config.
configure: error:
***
*** libgnutls was not found. You may want to get it from
*** http://www.gnutls.org/
***
[...]

This error went away when I added pkg-config to the mod-gnutls build-depends...

-- System Information:
Debian Release: 5.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libgnutls-dev depends on:
ii  libc6-dev [libc-dev]   2.7-18            GNU C Library: Development Librari
ii  libgcrypt11-dev        1.4.1-2           LGPL Crypto library - development 
ii  libgnutls26            2.4.2-4           the GNU TLS library - runtime libr
ii  libtasn1-3-dev         1.5-1             Manage ASN.1 structures (developme
ii  zlib1g-dev             1:1.2.3.3.dfsg-12 compression library - development

libgnutls-dev recommends no packages.

Versions of packages libgnutls-dev suggests:
ii  gnutls-bin                    2.4.2-4    the GNU TLS library - commandline 
pn  gnutls-doc                    <none>     (no description available)
pn  guile-gnutls                  <none>     (no description available)

-- no debconf information