[DRE-maint] Bug#1024651: ruby-gpgme: FTBFS against libgpgme-dev >= 1.18.0-2

[Andreas Metzler]

Source: ruby-gpgme
Version: 2.0.20-1
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
User: pkg-gnupg-maint at lists.alioth.debian.org
Usertags: gpgme-config-transition^

The package relies on gpgme-config to detect gpgme. gpgme-config has been
dropped and replaced by pkg-config pc files.

cu Andreas

------
checking for gpgme-config... no
gpgme-config not found
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.