preload tclap and xml2

docker/ask.Dockerfile

@@ -25,27 +25,29 @@ ARG LIBNFNETLINK_TAR
 ARG LIBNFCT_TAR
 ARG FMLIB_TAR
 ARG FMC_TAR
+ARG LIBXML2_TAR
+ARG TCLAP_TAR
 
-ARG NXP_VERSION
-ARG MONO_ASK_VERSION
+# ASK's version pins (hardcoded wget)
 ARG LIBNFNETLINK_VERSION
 ARG LIBNFCT_VERSION
-ARG FMLIB_VERSION
-ARG FMC_VERSION
 
 # Linux kernel
-COPY "${NXP_TAR}" ./kernel.tar.gz
+COPY "${NXP_TAR}"          ./kernel.tar.gz
 
 # Copy the ASK and Netfilter tarballs 
-COPY "${MONO_ASK_TAR}" .
+COPY "${MONO_ASK_TAR}"     ./mono-ask.tar.gz
+COPY "${FMC_TAR}"          ./fmc.tar.gz
+COPY "${FMLIB_TAR}"        ./fmlib.tar.gz
+COPY "${LIBXML2_TAR}"      ./libxml2.tar.xz
+COPY "${TCLAP_TAR}"        ./tclap.tar.gz
+# Pinned version should keep version names
 COPY "${LIBNFNETLINK_TAR}" ./libnfnetlink-${LIBNFNETLINK_VERSION}.tar.bz2
 COPY "${LIBNFCT_TAR}" ./libnetfilter_conntrack-${LIBNFCT_VERSION}.tar.xz
-COPY "${FMC_TAR}" ./fmc.tar.gz
-COPY "${FMLIB_TAR}" ./fmlib.tar.gz
 
 # Extract ASK and place Netfilter dependencies where the Makefile expects them
 RUN mkdir -p ASK/sources/tarballs && \
-    tar zxf "${MONO_ASK_VERSION}.tar.gz" -C "ASK" --strip-components=1 && \
+    tar zxf "mono-ask.tar.gz" -C "ASK" --strip-components=1 && \
     mv libnfnetlink-${LIBNFNETLINK_VERSION}.tar.bz2 ASK/sources/tarballs/ && \
     mv libnetfilter_conntrack-${LIBNFCT_VERSION}.tar.xz ASK/sources/tarballs/
 
@@ -57,6 +59,18 @@ RUN mkdir -p ASK/sources/fmc && \
     tar zxf "fmc.tar.gz" -C "ASK/sources/fmc" --strip-components=1 && \
     tar zxf "fmlib.tar.gz" -C "ASK/sources/fmlib" --strip-components=1
 
+RUN mkdir -p tclap && tar zxf "tclap.tar.gz" -C "tclap" --strip-components=1 && \
+    cp -r tclap/include/tclap /opt/aarch64-linux-musl-cross/aarch64-linux-musl/include/ && \
+    rm -rf tclap
+
+RUN mkdir -p libxml2 && tar xf "libxml2.tar.xz" -C "libxml2" --strip-components=1 && \
+    cd libxml2 && \
+    CC=aarch64-linux-musl-gcc ./configure --host=aarch64-linux-musl \
+        --prefix=/opt/aarch64-linux-musl-cross/aarch64-linux-musl \
+        --enable-static --disable-shared --without-python --without-zlib --without-lzma && \
+    make -j$(nproc) && make install && \
+    cd .. && rm -rf libxml2
+
 WORKDIR /src/ASK
 
 COPY patches/mono-ask.mk .

docker/download-packages.Dockerfile

@@ -91,6 +91,20 @@ WORKDIR /out/ask/libnfct
 RUN curl -fL --retry 3 -o "${LIBNFCT_VERSION}.tar.xz" \
     "https://www.netfilter.org/projects/libnetfilter_conntrack/files/libnetfilter_conntrack-${LIBNFCT_VERSION}.tar.xz"
 
+# ---- tclap ----
+FROM base AS tclap
+ARG TCLAP_VERSION
+WORKDIR /out/ask/tclap
+RUN curl -fL --retry 3 -o "${TCLAP_VERSION}.tar.gz" \
+    "https://sourceforge.net/projects/tclap/files/tclap-${TCLAP_VERSION}.tar.gz"
+
+# ---- libxml2 ----
+FROM base AS libxml2
+ARG LIBXML2_VERSION
+WORKDIR /out/ask/libxml2
+RUN curl -fL --retry 3 -o "${LIBXML2_VERSION}.tar.xz" \
+    "https://download.gnome.org/sources/libxml2/2.12/libxml2-${LIBXML2_VERSION}.tar.xz"
+
 # ---- libcli ----
 FROM base AS libcli
 ARG LIBCLI_VERSION
@@ -136,6 +150,8 @@ COPY --from=vpp /out/ /
 COPY --from=libnfnetlink /out/ /
 COPY --from=libnfct /out/ /
 COPY --from=libcli /out/ /
+COPY --from=libxml2 /out/ /
+COPY --from=tclap /out/ /
 COPY --from=alpine_rootfs /out/ /
 COPY --from=nxp_linux /out/ /
 COPY --from=crio /out/ /