update .travis.yaml to install system dependencies for new pkgdown version

s-fleck · s-fleck · commit 749d20912209 · 2020-10-17T10:48:36.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,11 @@
 # R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
 
 language: R
+addons:
+  apt:
+    packages:
+      - libharfbuzz-dev # for pkgdown
+      - libfribidi-dev
 matrix:
   include:
   - r: devel
