CI: test powerpc64le-unknown-linux-gnu

.travis.yml

@@ -60,6 +60,18 @@ matrix:
             - libc6-powerpc-cross
             - libc6-dev-powerpc-cross
             - qemu-user-static
+    - env: TARGET=powerpc64le-unknown-linux-gnu
+      os: linux
+      dist: trusty
+      sudo: required
+      addons:
+        apt:
+          packages:
+            - binfmt-support
+            - gcc-powerpc64le-linux-gnu
+            - libc6-ppc64el-cross
+            - libc6-dev-ppc64el-cross
+            - qemu-user-static
     - env: TARGET=x86_64-apple-darwin
       os: osx
     - env: TARGET=x86_64-unknown-linux-gnu

ci/env.sh

@@ -28,4 +28,8 @@ case $TARGET in
         export PREFIX=powerpc-linux-gnu-
         export QEMU_LD_PREFIX=/usr/powerpc-linux-gnu
         ;;
+    powerpc64le-unknown-linux-gnu)
+        export PREFIX=powerpc64le-linux-gnu-
+        export QEMU_LD_PREFIX=/usr/powerpc64le-linux-gnu
+        ;;
 esac