GStreamer 1.6 introduced a base class library for adaptive streaming elements. These use the libgstadaptivedemux-1.0.so library to implement that. the library is installed as part of the runtime package but not the development package. It looks like the installation script `libgstreamer-plugins-bad-dev.install` doesn't have the necessary installation line:
```
debian/tmp/usr/lib/*/gstreamer-1.0/include
debian/tmp/usr/lib/*/pkgconfig
debian/tmp/usr/include/gstreamer-@GST_ABI@/gst/codecparsers
debian/tmp/usr/include/gstreamer-@GST_ABI@/gst/gl
debian/tmp/usr/include/gstreamer-@GST_ABI@/gst/insertbin
debian/tmp/usr/include/gstreamer-@GST_ABI@/gst/mpegts
debian/tmp/usr/include/gstreamer-@GST_ABI@/gst/uridownloader
debian/tmp/usr/lib/*/libgstcodecparsers-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstgl-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstbadbase-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstbadvideo-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstinsertbin-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstmpegts-@GST_ABI@.so
debian/tmp/usr/lib/*/libgsturidownloader-@GST_ABI@.so
debian/tmp/usr/lib/*/libgstwayland-@GST_ABI@.so
debian/tmp/usr/share/gir-*
@mirallocdev@
```
Looks like it's missing `debian/tmp/usr/lib/*/libgstadaptivedemux-@GST_ABI@.so`
```
buildslave@ubuntu:~$ lsb_release -rd
Description: Ubuntu 15.10
Release: 15.10
buildslave@ubuntu:~$ apt-cache policy libgstreamer-plugins-bad1.0-dev
libgstreamer-plugins-bad1.0-dev:
Installed: 1.6.0-1ubuntu1
Candidate: 1.6.0-1ubuntu1
Version table:
*** 1.6.0-1ubuntu1 0
500 http://gb.archive.ubuntu.com/ubuntu/ wily/universe amd64 Packages
100 /var/lib/dpkg/status
```
