dtndht: Fix install target

The previous copying command includes non-existing variables. This commit replaces
the command with a more generic one.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
ibrcommon: Fix install target

The previous copying command includes non-existing variables. This commit replaces
the command with a more generic one.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
ibrdtn: Fix install target

The previous copying command includes non-existing variables. This commit replaces
the command with a more generic one.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
libarchive: Fix install target

This commit replaces the command with a more generic one.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>