[travis] Modernize Mac OSX dependencies

.travis.yml

@@ -1,7 +1,5 @@
 matrix:
   fast_finish: true
-  allow_failures:
-    - os: osx
   include:
     # QT4 based build with Python 2.7 // using container based builds and prebuild binary dependencies in osgeo4travis
     - os: linux

ci/travis/osx/before_install.sh

@@ -13,10 +13,12 @@
 #                                                                         #
 ###########################################################################
 
+# Remove default gdal provided by travis  (we will replace it with gdal 2)
+brew remove gdal || true
+
 brew tap osgeo/osgeo4mac
 brew update
-brew install osgeo/osgeo4mac/qgis-28 --without-postgis --without-postgresql --without-grass --without-gpsbabel --only-dependencies
-brew install qca
+brew install osgeo/osgeo4mac/qgis-214 --without-postgresql --only-dependencies
 brew install spawn-fcgi
 brew install lighttpd
 brew install poppler
@@ -31,6 +33,7 @@ brew ln libffi --force
 
 mkdir -p ${HOME}/Library/Python/2.7/lib/python/site-packages
 echo 'import site; site.addsitedir("/usr/local/lib/python2.7/site-packages")' >> ${HOME}/Library/Python/2.7/lib/python/site-packages/homebrew.pth
+echo 'import site; site.addsitedir("/usr/local/opt/gdal-20/lib/python2.7/site-packages")' >> ${HOME}/Library/Python/2.7/lib/python/site-packages/gdal2.pth
 
 # Needed for Processing
 pip install psycopg2 numpy nose2 pyyaml mock future

ci/travis/osx/install.sh

@@ -30,5 +30,6 @@ cmake \
   -DWITH_PYSPATIALITE=ON \
   -DQWT_INCLUDE_DIR=/usr/local/opt/qwt/lib/qwt.framework/Headers/ \
   -DQWT_LIBRARY=/usr/local/opt/qwt/lib/qwt.framework/qwt \
+  -DGDAL_CONFIG=/usr/local/opt/gdal-20/bin/gdal-config \
   -DCMAKE_CXX_FLAGS="-Wno-deprecated-declarations" \
   ..