Normalize building 9.6 packages

Previously in af8b090 and 55eae4b there was some thrashing done to be
able to build packages for a postgres server version that was not served
by postgres-server-dev-all package.

This commit removes that thrashing and updates the required
postgres-server-dev-all package version to latest, which allows building
of extensions for 9.6 without gymnastics.

.travis.yml

@@ -7,10 +7,9 @@ env:
     - DIST=trusty
 before_install:
   - sudo apt-get -y install wget software-properties-common
-  - sudo add-apt-repository -y "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main 9.6" && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
+  - sudo add-apt-repository -y "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main" && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
   - sudo apt-get update
-  - sudo apt-get -y --force-yes install debhelper devscripts postgresql-server-dev-all postgresql-server-dev-9.6
-  - echo '9.4\n9.5\n9.6' > ~/.pg_supported_versions
+  - sudo apt-get -y --force-yes install debhelper devscripts postgresql-server-dev-all
 before_script:
   - make clean
 script:

README.md

@@ -6,7 +6,7 @@ Author: Peter Geoghegan [`<pg@bowt.ie>`](mailto:pg@bowt.ie)
 
 License: <a href="https://opensource.org/licenses/postgresql">PostgreSQL license</a>
 
-Minimum supported version: PostgreSQL 9.4
+Supported versions: PostgreSQL 9.4, PostgreSQL 9.5, PostgreSQL 9.6
 
 ## Overview
 
@@ -45,7 +45,7 @@ operator class support functions.
 
 `amcheck` is proposed as a contrib extension for PostgreSQL 10, scheduled for
 release in 2017.  This externally maintained version of the extension exists to
-target earlier versions of PostgreSQL (PostgreSQL 9.4+).
+target earlier versions of PostgreSQL (PostgreSQL 9.4 - PostgreSQL 9.6).
 
 ### Bugs
 

debian/control

@@ -1,7 +1,7 @@
 Source: amcheck
 Priority: extra
 Maintainer: Peter Geoghegan <pg@bowt.ie>
-Build-Depends: debhelper (>= 9), postgresql-server-dev-all (>= 171~), postgresql-server-dev-9.6
+Build-Depends: debhelper (>= 9), postgresql-server-dev-all (>= 171~)
 Standards-Version: 3.9.6
 Section: database
 Homepage: https://github.com/petergeoghegan/amcheck

debian/tests/control

@@ -1,3 +1,3 @@
-Depends: @, postgresql-server-dev-9.4, postgresql-server-dev-9.5, postgresql-server-dev-9.6, postgresql-contrib-9.4, postgresql-contrib-9.5, postgresql-contrib-9.6
+Depends: @, postgresql-server-dev-all, postgresql-contrib-9.4, postgresql-contrib-9.5, postgresql-contrib-9.6
 Tests: installcheck
 Restrictions: allow-stderr

debian/tests/control.in

@@ -1,3 +1,3 @@
-Depends: @, postgresql-server-dev-PGVERSION, postgresql-contrib-PGVERSION
+Depends: @, postgresql-server-dev-all, postgresql-contrib-PGVERSION
 Tests: installcheck
 Restrictions: allow-stderr