add make clean

Dockerfile

@@ -96,11 +96,11 @@ COPY epics /epics
 # get and build EPICS base
 RUN git clone ${EPICS_BASE_SRC} -q ${GIT_OPTS} ${EPICS_BASE} && \
     bash /epics/scripts/patch-epics-base.sh
-RUN make -C ${EPICS_BASE} -j $(nproc)
+RUN make -C ${EPICS_BASE} -j $(nproc); make -C ${EPICS_BASE} clean
 
 # also build the sequencer as it is used by many support modules
 RUN bash /epics/scripts/get-sncseq.sh
-RUN make -C ${SUPPORT}/sncseq -j $(nproc)
+RUN make -C ${SUPPORT}/sncseq -j $(nproc); make -C ${SUPPORT}/sncseq clean
 
 # setup a global python venv and install ibek
 COPY requirements.txt /requirements.txt

build

@@ -17,11 +17,16 @@ cd $(dirname ${0})
 # use docker if available else use podman
 if ! docker version &>/dev/null; then docker=podman; else docker=docker; fi
 
+if ! $docker buildx version &>/dev/null; then
+    echo "buildx required. (install with 'apt install docker-buildx')"
+    exit 1
+fi
+
 # make sure new repos get their submodule ibek-support
 git submodule update --init
 
 # build and developer images
-$docker build --network host --target $TARGET \
+$docker buildx build --network host --target $TARGET \
         --build-arg TARGETARCH=amd64 \
         --build-arg TARGET_ARCHITECTURE=$T_A \
         -t ${TAG} .

epics/scripts/runtime-prep-epics-base.sh

@@ -6,7 +6,4 @@ if [[ $TARGET_ARCHITECTURE == "rtems" ]]; then
     echo "removing non rtems architecture binaries"
     rm -rf ${EPICS_BASE}/bin/${EPICS_HOST_ARCH}
     rm -rf ${EPICS_BASE}/lib/${EPICS_HOST_ARCH}
-
-else
-    echo "No epics-base patch required for architecture <$TARGET_ARCHITECTURE>"
 fi