tools/ci/docker/linux/Dockerfile: add libmad0-dev in docker environment
@@ -246,6 +246,7 @@ RUN apt-get update -qq && DEBIAN_FRONTEND="noninteractive" apt-get install -y -q
libc6-dev-i386 \
libcurl4-openssl-dev \
libncurses5-dev \
+ libmad0-dev:i386 \
libpulse-dev libpulse-dev:i386 \
libpython2.7 \
libtinfo5 \
