diff --git a/Jenkinsfile b/Jenkinsfile
index dcb854f..459f4ae 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -13,7 +13,10 @@ def withDockerCreds(body) {
 
 pipeline {
     agent none
-    environment { DEBUG = "1" }
+    environment {
+        DEBUG = "1"
+        HEADLESS = "1"    
+    }
     options { buildDiscarder logRotator(numToKeepStr: '4') }
     stages {
         stage('build docker image') {
diff --git a/lib/build.sh b/lib/build.sh
index e109afc..51e93d5 100644
--- a/lib/build.sh
+++ b/lib/build.sh
@@ -510,17 +510,10 @@ do_build() {
 		echo_info -n "building ${build} "
 		# build in background
 		local timeBefore=${EPOCHSECONDS}
-		LOGNAME="${build}" echo_if_fail "build_${build}" &
-		local buildPid=$!
-		# start spinner
-		spinner &
-		local spinPid=$!
-		# get build return code
-		wait ${buildPid}
+		spinner start
+		LOGNAME="${build}" echo_if_fail "build_${build}"
 		local retval=$?
-		# stop spinner
-		kill ${spinPid}
-		spinner reset
+		spinner stop
 
 		popd >/dev/null || return 1
 		test ${retval} -eq 0 || return ${retval}
@@ -693,6 +686,7 @@ build_cpuinfo() {
 		-DCPUINFO_BUILD_UNIT_TESTS=OFF \
 		-DCPUINFO_BUILD_MOCK_TESTS=OFF \
 		-DCPUINFO_BUILD_BENCHMARKS=OFF \
+		-DCPUINFO_LOG_TO_STDIO=ON \
 		-DUSE_SYSTEM_LIBS=ON || return 1
 	sanitize_sysroot_libs libcpuinfo || return 1
 }
@@ -727,6 +721,12 @@ build_libopus() {
 }
 
 build_libwebp() {
+	if is_android; then
+		replace_line CMakeLists.txt \
+			"if(ANDROID)" \
+			"if(FALSE)\n"
+	fi
+
 	meta_cmake_build || return 1
 	sanitize_sysroot_libs libwebp libsharpyuv || return 1
 }
@@ -916,7 +916,7 @@ build_libx264() {
 
 build_libmp3lame() {
 	# https://sourceforge.net/p/lame/mailman/message/36081038/
-	if is_darwin; then
+	if is_darwin || is_android; then
 		remove_line \
 			'include/libmp3lame.sym' \
 			'lame_init_old' || return 1
diff --git a/lib/docker.sh b/lib/docker.sh
index 5a9bda1..3a60f38 100644
--- a/lib/docker.sh
+++ b/lib/docker.sh
@@ -20,6 +20,7 @@ set_docker_run_flags() {
 		-v "${REPO_DIR}:${REPO_DIR}"
 		-w "${REPO_DIR}"
 		-e "DEBUG=${DEBUG}"
+		-e "HEADLESS=${HEADLESS}"
 	)
 	for opt in "${FB_COMP_OPTS[@]}"; do
 		declare -n defOptVal="DEFAULT_${opt}"
diff --git a/lib/install_deps.sh b/lib/install_deps.sh
index cd5561f..78f134e 100644
--- a/lib/install_deps.sh
+++ b/lib/install_deps.sh
@@ -91,6 +91,10 @@ print_req_pkgs() {
 		git gnuplot bison rsync ragel
 		zip unzip gperf build-essential
 		binutils ninja ndk-multilib-native-static
+		libandroid-posix-semaphore
+		libandroid-posix-semaphore-static
+		libandroid-shmem
+		libandroid-shmem-static
 	)
 	# shellcheck disable=SC2034
 	local msys_ucrt_pkgs=(
diff --git a/lib/utils.sh b/lib/utils.sh
index 12eac72..10b9740 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -324,18 +324,16 @@ bash_sort() {
 	printf '%s\n' "${arr[@]}"
 }
 
-spinner() {
-	if [[ $1 == 'reset' ]]; then
-		echo -ne ' \n'
-		return 0
-	fi
-
+_start_spinner() {
 	local spinChars=(
 		"-"
 		'\'
 		"|"
 		"/"
 	)
+
+	sleep 1
+
 	while true; do
 		for ((ind = 0; ind < "${#spinChars[@]}"; ind++)); do
 			echo -ne "${spinChars[${ind}]}" '\b\b'
@@ -344,6 +342,28 @@ spinner() {
 	done
 }
 
+spinner() {
+	local action="$1"
+	local spinPidFile="${TMP_DIR}/.spinner-pid"
+	case "${action}" in
+	start)
+		test -f "${spinPidFile}" &&
+			rm "${spinPidFile}"
+
+		# don't want to clutter logs if running headless
+		test "${HEADLESS}" == '1' &&
+			return
+
+		_start_spinner &
+		echo $! >"${spinPidFile}"
+		;;
+	stop)
+		test -f "${spinPidFile}" && kill "$(<"${spinPidFile}")"
+		echo -ne ' \n'
+		;;
+	esac
+}
+
 get_pkgconfig_version() {
 	local pkg="$1"
 	pkg-config --modversion "${pkg}"