diff --git a/CI/travis/before_install_linux b/CI/travis/before_install_linux
index 3cdc3844f..db248fd65 100755
--- a/CI/travis/before_install_linux
+++ b/CI/travis/before_install_linux
@@ -27,7 +27,7 @@ handle_centos() {
 	# FIXME: see about adding `libserialport-dev` from EPEL ; maybe libusb-1.0.0-devel...
 	yum -y groupinstall 'Development Tools'
 	yum -y install cmake libxml2-devel libusb1-devel libaio-devel \
-		bzip2 gzip rpm rpm-build
+		bzip2 gzip rpm rpm-build libzstd-devel
 
 	if [ "$(get_version | head -c 1)" = "7" ] ; then
 		# install Cmake3, and make it the default
@@ -66,7 +66,7 @@ handle_generic_docker() {
 handle_default() {
 	sudo apt-get -qq update
 	sudo DEBIAN_FRONTEND=noninteractive apt-get install -y cmake graphviz \
-		libaio-dev libavahi-client-dev libserialport-dev \
+		libaio-dev libavahi-client-dev libserialport-dev libzstd-dev \
 		libavahi-common-dev libusb-1.0-0-dev libxml2-dev rpm tar \
 		bzip2 gzip flex bison git libncurses5-dev libcdk5-dev \
 		doxygen man2html python3 python3-pip python3-setuptools
diff --git a/CI/travis/make_linux b/CI/travis/make_linux
index d215d4d6f..cf732d5d1 100755
--- a/CI/travis/make_linux
+++ b/CI/travis/make_linux
@@ -44,6 +44,13 @@ handle_default() {
 
 	FLAGS="-DENABLE_PACKAGING=ON -DDEB_DETECT_DEPENDENCIES=ON -DWITH_EXAMPLES=ON ${PYTHON_HELP} ${DOC_HELP} ${MAN_HELP}"
 
+	# Ubuntu Xenial's libserialport and libzstd are too old
+	if [ "${OS_VERSION}" = xenial ] ; then
+		FLAGS="${FLAGS} -DWITH_SERIAL_BACKEND=OFF"
+	else
+		FLAGS="${FLAGS} -DWITH_ZSTD=ON"
+	fi
+
 	echo "### cmake ${FLAGS}"
 	cmake ${FLAGS} ..
 
@@ -103,7 +110,13 @@ handle_centos() {
 	echo "handle centos"
 	mkdir -p build
 	cd build
-	cmake -DENABLE_PACKAGING=ON -DPYTHON_BINDINGS=ON ..
+
+	FLAGS="-DENABLE_PACKAGING=ON -DPYTHON_BINDINGS=ON -DWITH_SERIAL_BACKEND=OFF -DWITH_ZSTD=ON"
+
+	# CentOS 7's kernel headers are too old for USB support in IIOD
+	[ "${OS_VERSION}" = centos7 ] && FLAGS="${FLAGS} -DWITH_IIOD_USBD=OFF"
+
+	cmake ${FLAGS} ..
 	make
 	make package
 	cd ..