Bug#715413: bc is needed to build a kernel 3.9

[Matteo Cortese <matteo_cortese@fastwebnet.it>]

Package: linux-source-3.9
Version: 3.9.6-1
Severity: normal

This package should recommend bc (the GNU command-line calculator), 
because it is otherwise impossible to build a kernel -- see around line 
135 of kernel/Makefile:

quiet_cmd_bc  = BC      $@
      cmd_bc  = bc -q $(filter-out FORCE,$^) > $@

Note that all this was not present in kernel 3.2

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

Kernel: Linux 3.9.6 (PREEMPT)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-source-3.9 depends on:
ii  binutils  2.22-8
ii  bzip2     1.0.6-4

Versions of packages linux-source-3.9 recommends:
ii  gcc                   4:4.7.2-1
ii  libc6-dev [libc-dev]  2.17-3
ii  make                  3.81-8.2

Versions of packages linux-source-3.9 suggests:
ii  libncurses5-dev [ncurses-dev]  5.9+20130608-1
pn  libqt4-dev                     <none>
ii  pkg-config                     0.26-1

-- no debconf information