Bug#802413: xserver-xorg-video-qxl: FTBFS: Package 'libcacard', required by 'spice-server', not found

["Chris West (Faux)" <solo-debianbugs@goeswhere.com>]

Source: xserver-xorg-video-qxl
Version: 0.1.4-3
Severity: serious
Justification: fails to build from source
Tags: sid stretch
User: reproducible-builds@lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds@lists.alioth.debian.org

Dear Maintainer,

The package fails to build:

checking for inotify_init1... yes
checking for SPICE... no
configure: error: Package requirements (spice-server >= 0.6.3) were not met:

Package 'libcacard', required by 'spice-server', not found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/xserver-xorg-video-qxl.html

-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)