We don't want C specific flags in GST_CXXFLAGS, so base it on the
GST_CFLAGS that only contains the pkg-config CFLAGS but none of
the GST_OPTION_CFLAGS. Also, we only need the local includes once.
Fix typo as well (GST_FLAGS -> GST_CFLAGS).

pkg-config sets GST_CFLAGS and GST_LIBS. We need to use CFLAGS as a starting
point for for both C and CXX settings.

For GST_RIFF_TAG_JUNQ.

Fixes bug #584536.

Slushy freeze remains in effect.

It's disabled anyway and the latest version of it is in
gst-plugins-bad. Fixes bug #603779.

Make implicit requirement explicit.

In older versions the volume set during stream connection had
no defined sematic and usually it was a relative volume. What
was needed for our use case is an absolute volume though, otherwise
the volume will be always decreased on stream connection if it's
less than 100%.
Since pulse 0.9.20 that volume is always an absolute volume if
flat volumes are used and relative otherwise, which is the same
as for pa_context_set_sink_input_volume().

Relevant pulse changesets:
http://git.0pointer.de/?p=pulseaudio.git;a=commit;h=f27a50691c8fe45bac7dd6b21fac91a359def3a1
http://git.0pointer.de/?p=pulseaudio.git;a=commit;h=2501687579e359d5032a4d165b2ffc8f5b1b8ba6

Older versions than 0.9.10 are really really old and buggy. Drop
compatibility with them. Nobody should run anything that old.

Also see: https://bugzilla.gnome.org/show_bug.cgi?id=595029

Add a configure check for functional isinf() and fpclass(), and
use fpclass() where possible when isinf() is not available.

Remove the code to deal with a ringbuffer reset as this code is now in the base
class.
Bump the -base requirement as we need the new baseaudiosink code to function
properly.

Hook up build infrastructure (autotools, docs, unit test).

This requires GLib 2.16 but that version is already required by core anyway.

To avoid confusion.

Add check for pulseaudio 0.9.15 and enable 24bits samples in that case.

Enumerate v4l2 devices using gudev if available.

Fixes bug #583640.

Need git core for basesink bufferlist additions; -base requirement
bumped gratuitously.

If we're lucky it'll get used on automatic rebuilds as well that way.

and update common to pull in a similar fix. Also check in configure
whether the compiler supports do while macros (GLib wants this
defined and it is needed to avoid warnings with some c++ compilers
apparently).

The helper function soup_message_headers_get_content_type that we now use
was added in 2.26.