devel: guard against incompabtible plugin installation
Each package having some *.so plugin for postgresql-server should
be rebuilt against each major version bump of PostgreSQL. Using
this statements in F21+
BuildRequires: postgresql-devel
Require: postgresql-server(:MODULE_COMPAT_%{postgresql_major})
then automatically blocks installation of postgresql-server and
incompatible plugin at the same time and thus indirectly forces
plugin maintainers to rebuild their packages against newer server.
File macros.postgresql now starts providing correct
%{postgresql_major} macro.
Resolves: #1008939
Version: 9.3.4-8