Add CFLAGS to s390x build (#474)

Signed-off-by: Mateus Devino <mdevino@ibm.com>

Author: mdevino

Dockerfile.s390x

@@ -36,7 +36,7 @@ ENV PATH="/root/.cargo/bin:${PATH}"
 RUN cd /tmp && \
     curl -L -O https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-linux-s390_64.zip && \
     unzip protoc-*.zip -d /usr/local && rm protoc-*.zip
-ENV LIBCLANG_PATH=/usr/lib/llvm-14/lib/
+ENV LIBCLANG_PATH=/usr/lib64/
 
 WORKDIR /app
 
@@ -52,6 +52,7 @@ COPY tests/ /app/tests/
 
 WORKDIR /app
 
+ENV CFLAGS="-Wno-string-compare"
 # TODO: Make releases via cargo-release
 RUN cargo build --release
 # Copy test resources required for executing unit tests