travis-ci: enable -Werror for CMake builds (#2418)

diff --git a/.travis.yml b/.travis.yml
index 373db69250f55c04c3d5e6be416130873b2009a2..0bb19fb9f413f30ca0deb9ed1b6b5a162de6a40a 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -187,7 +187,7 @@ script:
         if [ "$T" = "cmake" ]; then
              mkdir build
              cd build
-             cmake ..
+             cmake .. -DCURL_WERROR=ON
              make
         fi
     - |