Bug#969601: mixxx: ffmpeg and wavpack support not enabled

[Ryan Murray <rmurray@cyberhqz.com>]

Package: mixxx
Version: 2.2.4~dfsg-1
Severity: normal
Tags: patch

While mixxx build-depends on ffmpeg dev packages, the mixxx build system
doesn't look for them without being told to.  This results in file
formats that need ffmpeg being unsupported. Additionally,
mixxx has wavpack support that can be enabled with an additional
Build-Dep and option to the build system.

--- a/debian/control
+++ b/debian/control
@@ -46,6 +46,7 @@
  libvamp-hostsdk3v5,
  libvamp-sdk2v5,
  libvorbis-dev,
+ libwavpack-dev,
  pkg-config,
  portaudio19-dev,
  protobuf-compiler,
--- a/debian/rules
+++ b/debian/rules
@@ -16,6 +16,9 @@
 SCONS_OPTS += qt_sqlite_plugin=0
 SCONS_OPTS += virtualize=0
 SCONS_OPTS += localecompare=1
+# file format support
+SCONS_OPTS += ffmpeg=1
+SCONS_OPTS += wv=1
 # destdir, prefix and machine
 SCONS_OPTS += prefix=/usr
 SCONS_OPTS += install_root=$(CURDIR)/debian/tmp/usr