java-swt and tuxguitar

[Andreas Enge <andreas@enge.fr>]

Hello,

after switching to GuixSD, I realised I need to do a little bit of android
development, and tried to install the android sdk. Running the android
script failed, since swt-pi-gtk-3550 could not be found. Something like
this is provided by java-swt, but this package could not be built since
its source has disappeared from the download location. So I updated from
4.5 to 4.6. Since the package provides libswt-pi-gtk-4623.so, I suppose I
would have needed to downgrade to 3.5 instead...

The upgrade broke the build of (the only dependent package) tuxguitar.
The latter has seen a new release recently, but this does not build with the
current recipe (the patched GNUmakefile does not exist any more). Ricardo,
would you like to look into this, or should I simply revert the upgrade
of java-swt and look for a location for its source?

Andreas