Update travis to use proj 4.9.2 the painful way.

Closes #149

git-svn-id: http://svn.osgeo.org/postgis/trunk@15889 b70326c6-7e19-0410-871a-916f4a2858ee

.travis.yml

@@ -12,9 +12,19 @@ before_install:
   - sudo apt-get install -y --no-install-recommends
       postgresql-9.6 postgresql-server-dev-9.6 libxml2-utils
       libcunit1-dev xsltproc docbook-xsl docbook-mathml dblatex
-      libproj-dev libgdal-dev libgeos-dev libjson0-dev
-      libsfcgal1 libsfcgal-dev libprotobuf-c0-dev libgdal-dev 
+      libgdal-dev libgeos-dev libjson0-dev
+      libsfcgal1 libsfcgal-dev libprotobuf-c0-dev libgdal-dev
   - dpkg -l | grep postgresql
+  - wget http://download.osgeo.org/proj/proj-4.9.2.tar.gz
+  - tar zxvf proj-4.9.2.tar.gz
+  - cd proj-4.9.2
+  - ./configure --prefix=/usr
+  - make
+  - sudo make install
+  - cd ..
+  - rm -rf proj-4.9.2
+  - rm proj-4.9.2.tar.gz
+  - sudo ldconfig
   - ./autogen.sh
 
 language: c