1 files changed, 58 insertions, 19 deletions
diff --git a/.travis.yml b/.travis.yml
index ff313b07..07e8d247 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,19 +1,66 @@
-language: python
+os: linux
 dist: trusty
 sudo: false
 
+language: python
+
+cache:
+  pip: true
+  directories:
+    - $HOME/.ccache
+    - libs
+
 python:
-  - 2.6
   - 2.7
-  - 3.3
-  - 3.4
-  - 3.5
   - 3.6
-  - 3.7
-  - 3.7-dev
-  - 3.8-dev
-  - pypy
-  - pypy3
+  - 3.5
+  - 3.4
+
+env:
+  global:
+    - USE_CCACHE=1
+    - CCACHE_SLOPPINESS=pch_defines,time_macros
+    - CCACHE_COMPRESS=1
+    - CCACHE_MAXSIZE=70M
+    - PATH="/usr/lib/ccache:$PATH"
+    - LIBXML2_VERSION=2.9.8
+    - LIBXSLT_VERSION=1.1.32
+  matrix:
+    - STATIC_DEPS=true
+    - STATIC_DEPS=false
+
+matrix:
+  include:
+    - python: 3.7
+      dist: xenial    # Required for Python 3.7
+      sudo: required  # travis-ci/travis-ci#9069
+      env: STATIC_DEPS=true
+    - python: 3.7
+      dist: xenial    # Required for Python 3.7
+      sudo: required  # travis-ci/travis-ci#9069
+      env: STATIC_DEPS=false
+    - python: 3.8-dev
+      dist: xenial    # Required for Python 3.7
+      sudo: required  # travis-ci/travis-ci#9069
+      env: STATIC_DEPS=true
+    - python: 3.8-dev
+      dist: xenial    # Required for Python 3.7
+      sudo: required  # travis-ci/travis-ci#9069
+      env: STATIC_DEPS=false
+    - python: 3.6
+      env:
+        - STATIC_DEPS=true
+        - LIBXML2_VERSION=2.9.2  # minimum version requirements
+        - LIBXSLT_VERSION=1.1.27
+    - python: pypy
+      env: STATIC_DEPS=false
+    - python: pypy3
+      env: STATIC_DEPS=false
+  allow_failures:
+    - python: 3.7  # Currently needed to avoid waiting forever for the build.
+    - python: 3.8-dev
+    - python: pypy
+    - python: pypy3
 
 install:
     - pip install -U pip wheel
@@ -22,13 +69,5 @@ install:
 
 script:
   - CFLAGS="-O0 -g -fPIC" python -u setup.py build_ext --inplace $(if [ -n "${TRAVIS_PYTHON_VERSION##2.*}" -a -n "${TRAVIS_PYTHON_VERSION##3.[34]*}" ]; then echo -n " -j7 "; fi )
+  - ccache -s || true
   - CFLAGS="-O0 -g -fPIC" PYTHONUNBUFFERED=x make test
-
-matrix:
-  allow_failures:
-    - python: 3.8-dev
-    - python: pypy
-    - python: pypy3
-
-cache:
-  pip: true