That said, I wonder if there's any point in passing -V to
dh_makeshlibs if the package uses symbols. It doesn't seem useful.
The option started to be used in version 2.4.1-1 (2008),
I believe. From debian/changelog:
* New upstream release (Closes: #480127):
- Not bumping shlibs, no new symbol.
- To achieve this, use two dh_makeshlibs calls (one for
libgphoto2-port0 and one for libgphoto2-$(major), and provide with
the last upstream version sharing the same ABI. Using 2.4.0 here
although some former versions might have been specified. That
shouldn't make any difference from a testing migration point of
view.
Do you know when the .symbols file started to be in use ?