debian: Trim build dependencies

dpkg-dev is not needed for building binaries.

make, g++ and libc6-dev will be pulled in by e.g. build-essential
which is not necessary to specify (Debian policy).

Packages should not build-depend on qt5-default but rather
on qt5-base-dev and select QT5 in debian/rules
(https://wiki.debian.org/Lintian/Tags/depends-on-metapackage)

qtdeclarative5-dev is simply not needed.

qttools5-dev-tools is needed for translations using lrelease.

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>

distributions/debian/control

@@ -4,13 +4,8 @@ Priority: optional
 Maintainer: "Marc Landolt jr" <debian@marclandolt.ch>
 Build-Depends:
  debhelper (>= 9),
- dpkg-dev,
- g++,
- libc6-dev | libc-dev,
  libjack-jackd2-dev,
- make,
+ qtbase5-dev,
- qt5-default,
- qtdeclarative5-dev,
  qttools5-dev-tools,
 Standards-Version: 3.9.5
 Homepage: http://llcon.sourceforge.net/

distributions/debian/rules

@@ -1,4 +1,7 @@
 #!/usr/bin/make -f
+
+export QT_SELECT=qt5
+
 %:
 	dh $@