Do debug build in Travis

The debug builds do extra check, so chose that mode for Travis so we
get early warnings for problems.

diff --git a/.travis.yml b/.travis.yml
index 74878fca3d7f7ab51407b1beb90c4055344781c2..ceafcbb78dd9098ab22a8cf7181aa35beb215926 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,5 +16,5 @@ before_install:
  - popd
 
 script:
- - cmake . && make
+ - cmake -DCMAKE_BUILD_TYPE=Debug . && make
  - cd java && cmake . && make