travis: Use absolute paths for cache dirs

MarcoFalke · MarcoFalke · commit 88884c6f7545 · 2019-06-14T10:47:48.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -31,8 +31,8 @@ language: minimal
 cache:
   ccache: true
   directories:
-    - depends/built
-    - depends/sdk-sources
+    - $TRAVIS_BUILD_DIR/depends/built
+    - $TRAVIS_BUILD_DIR/depends/sdk-sources
     - $HOME/.ccache
 stages:
   - lint
