How to make a shared lib recognized by debhelpers?

[Ole Streicher <olebole@debian.org>]

Hi,

I am currently adopting plplot [1], which included a simplification and
modernization of the build system (using modern debhelpers).

I now have the problem, that one of the shared libraries is probably not
detected correctly: "lintian" tells me

E: octave-plplot: unstripped-binary-or-object usr/lib/x86_64-linux-gnu/octave/site/oct/api-v51/x86_64-pc-linux-gnu/plplot_octave.oct
E: octave-plplot: missing-dependency-on-libc needed by usr/lib/x86_64-linux-gnu/octave/site/oct/api-v51/x86_64-pc-linux-gnu/plplot_octave.oct

The Depends: field of the package however contains the entry
${shlibs:Depends}, and this also works correctly for the other binary
packages built from the source.

The manpages of dh_makeshlibs, dh_shlibdeps and dh_strip didn't
enlighten me here. In the original plplot package, "strip" was called
directly in install-arch, which doesn't look very smart, because it
f.e. also prevents the creation of a proper debug image, and
dpkg-shlibdeps needs to be called lated as well explicitly for this
library.

How can I do a proper handling of the library here? I guess (I am not an
octave expert, however), that the name of the library shall not be
changed.

Best regards

Ole