GPGME question: who uses /usr/include/{gpgmepp,qgpgme}_version.h ?

[Daniel Kahn Gillmor]

Hi all--

i just realized that in addition to /usr/include/qgpgme/ and
/usr/include/gpgme++/, GPGME's development headers want to ship
/usr/include/qgpgme_version.h and /usr/include/libgpgmepp_version.h.

These files contain #define macros for the version information of the
library that's being built against.

What's the reason for having these two files at the same level
(/usr/include/) instead of shipping them inside the shipped directories?
For example, why not ship /usr/include/qgpgme/version.h instead?

On my own dev workstation, i see many more packages following the
foo/version.h approach:

    0 dkg at alice:~$ ls /usr/include/*/*version.h | wc -l
    29
    0 dkg at alice:~$ ls /usr/include/*version.h | wc -l
    4
    0 dkg at alice:~$ 

Is there a reason to use ${library}_version.h instead of putting the
file inside the shipped directory?  fwiw, if there's a concern about
backward compatibility, I've looked on https://codesearch.debian.net and
i don't see anyone using these version.h files directly in debian at all
at the moment.

   --dkg
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