ci: add system dependencies to travis ci

diff --git a/.travis.yml b/.travis.yml
index f834b7f2b81738f54b2c12f61163ac07fea1f413..da2327cf56add658c1b917d99c7841382e5e2298 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,8 @@
 language: ruby
+dist: bionic
+before_install:
+- sudo apt-get update -y && \
+- sudo apt-get install -y ruby ruby-dev libtokyocabinet-dev zlib1g-dev libbz2-dev libxml2-dev libxslt1-dev
 rvm:
   - 2.7.0
   - 2.6.0