Test protobuf in wheezy

docker/Dockerfile_wheezy

@@ -44,6 +44,15 @@ ENV LC_ALL en_US.UTF-8
 RUN pip install awscli
+ENV PROTOBUF_VERSION 3.2.0
+RUN curl -fsSL "https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/protobuf-cpp-${PROTOBUF_VERSION}.tar.gz" \
+  | tar -xzC /tmp \
+  && cd /tmp/protobuf-${PROTOBUF_VERSION} \
+  && ./configure \
+  && make -j 3 \
+  && make check \
+  && make install
+
 ENV GIT_VERSION 2.7.4
 RUN curl -fsSL "https://www.kernel.org/pub/software/scm/git/git-${GIT_VERSION}.tar.gz" \
 	| tar -xzC /tmp \
@@ -84,15 +93,6 @@ RUN mkdir /usr/local/yarn \
 	| tar -xzC /usr/local/yarn --strip 1 \
   && ln -sf /usr/local/yarn/bin/yarn /usr/local/bin/
-ENV PROTOBUF_VERSION 3.2.0
-RUN curl -fsSL "https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/protobuf-cpp-${PROTOBUF_VERSION}.tar.gz" \
-  | tar -xzC /tmp \
-  && cd /tmp/protobuf-${PROTOBUF_VERSION} \
-  && ./configure \
-  && make -j 3 \
-  && make check \
-  && make install
-
 RUN mkdir -p /opt/gitlab /var/cache/omnibus ~/.ssh
 RUN git config --global user.email "packages@gitlab.com"