separated ppc and ppc64 tests, for more regular timing

.travis.yml

@@ -92,7 +92,17 @@ matrix:
             - gcc-aarch64-linux-gnu
             - libc6-dev-arm64-cross
 
-    - env: Ubu=14.04 Cmd='make ppctest && make clean && make ppc64test'
+    - env: Ubu=14.04 Cmd='make ppctest'
+      dist: trusty
+      sudo: required
+      addons:
+        apt:
+          packages:
+            - qemu-system-ppc
+            - qemu-user-static
+            - gcc-powerpc-linux-gnu
+
+    - env: Ubu=14.04 Cmd='make ppc64test'
       dist: trusty
       sudo: required
       addons:
@@ -101,7 +111,6 @@ matrix:
             - qemu-system-ppc
             - qemu-user-static
             - gcc-powerpc-linux-gnu
-            - libc6-dev-armel-cross
 
     - env: Ubu=14.04 Cmd='make -C lib all && CFLAGS="-O1 -g" make -C zlibWrapper valgrindTest && make -C tests valgrindTest'
       os: linux