/usr/bin/saga-depends is in libsaga-dev 2.1.2+dfsg-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #!/bin/sh
#
# This tiny script is a debhelper script that adds substitution vars for
# packages that have to depend on the libsaga libraries.
#
# Use: saga-depends [binary-name ...]
#
if [ $# -ne 0 ]; then
cat >>debian/${PKG}.substvars <<EOF
saga:Depends=libsaga-2.1.2
EOF
else
cat >>debian/substvars <<EOF
saga:Depends=libsaga-2.1.2
EOF
fi
|