travis-ci: Add (big-endian) s390x build

s390x is big-endian which is different from any other arch we build.
We have endianness dependent code, thus this is useful to test.

diff --git a/.travis.yml b/.travis.yml
index 09de8d978b48020e6c2ddfe408b993b647be2bf7..c106a53ea3d2773deace53d9e134c39e2b869f87 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -45,6 +45,10 @@ matrix:
       os: linux
       arch: arm64
       compiler: gcc
+    - name: linux/gcc/s390x/openssl-master
+      os: linux
+      arch: s390x
+      compiler: gcc
     - name: osx/clang/x86_64/openssl-master
       os: osx
       compiler: clang