bug#19979: vlc install failed with backtrace

[Axel]

Hello,

I tried to install:

name: vlc
version: 2.1.5
dependencies: alsa-lib-1.0.27.1 avahi-0.6.31 dbus-1.8.12 ffmpeg-2.2.11
+ flac-1.3.0 fontconfig-2.10.93 freetype-2.4.11 git-2.2.1 gnutls-3.2.20
+ libcddb-1.3.0 libgcrypt-1.6.2 libkate-0.4.1 libmad-0.15.1b libogg-1.3.2
+ libpng-1.5.17 libsamplerate-0.1.8 libssh2-1.4.3 libtheora-1.1.1
libvorbis-1.3.4
+ libxext-1.3.3 libxinerama-1.1.3 libxml2-2.9.0 libxpm-3.5.11 lua-5.1.5
+ mesa-10.4.0 opus-1.1 perl-5.16.1 pkg-config-0.27.1 pulseaudio-5.0
+ python-wrapper-3.3.5 qt-4.8.6 sdl-1.2.15 sdl-image-1.2.12 speex-1.2rc1
+ xcb-util-keysyms-0.4.0
location: gnu/packages/video.scm:212:2

and guix crashed with trace:

Backtrace:
In guix/scripts/package.scm:
 814: 19 [process-actions (# # # # ...)]
In guix/monads.scm:
 427: 18 [run-with-store # ...]
In guix/profiles.scm:
 412: 17 [#<procedure 2c9bb10 at guix/profiles.scm:412:2 (store)> #]
In guix/gexp.scm:
 175: 16 [#<procedure 2c9b930 at guix/gexp.scm:175:2 (store)> #]
In guix/monads.scm:
 328: 15 [#<procedure 2c9b960 at guix/monads.scm:327:2 (store)> #]
 328: 14 [#<procedure 2c9b990 at guix/monads.scm:327:2 (store)> #]
In guix/gexp.scm:
 100: 13 [#<procedure 2c9ba20 at guix/gexp.scm:100:21 (store)> #]
In guix/packages.scm:
 612: 12 [cache # # #<procedure thunk ()>]
 861: 11 [thunk]
 793: 10 [bag->derivation # # #]
In srfi/srfi-1.scm:
 576: 9 [map #<procedure 2c9b750 at guix/packages.scm:795:30
(t-12567)> (# # # ...)]
In guix/packages.scm:
 654: 8 [expand-input # # # ...]
 612: 7 [cache # # #<procedure thunk ()>]
 861: 6 [thunk]
 793: 5 [bag->derivation # # #]
In srfi/srfi-1.scm:
 578: 4 [map #<procedure 2964c00 at guix/packages.scm:795:30
(t-12567)> (# # # ...)]
In guix/packages.scm:
 669: 3 [expand-input # # # ...]
 373: 2 [patch-and-repack # # # ...]
In srfi/srfi-1.scm:
 601: 1 [map #<procedure 29c9960 at guix/packages.scm:373:9 (number
patch)> (0) ...]
In guix/packages.scm:
 375: 0 [#<procedure 29c9960 at guix/packages.scm:373:9 (number patch)> 0 #f]

I just installed guixsd 0.8 and updated it with `guix pull`. Other
packages installed without problems.

-- 
axel