/usr/share/debmake/extra2dev/package.install is in debmake 4.2.9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | # You must remove unused comment lines for the released package.
### Candidates as below and see dh_install(1).
###usr/include
###usr/lib/*/*.so
###usr/lib/*/pkgconfig/*.pc
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