Add libass and all its dependencies

scripts.d/35-fontconfig.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+FONTCONFIG_SRC="https://www.freedesktop.org/software/fontconfig/release/fontconfig-2.13.92.tar.xz"
+
+ffbuild_enabled() {
+    return 0
+}
+
+ffbuild_dockerstage() {
+    to_df "ADD $SELF /root/fc.sh"
+    to_df "RUN bash -c 'source /root/fc.sh && ffbuild_dockerbuild && rm /root/fc.sh'"
+}
+
+ffbuild_dockerbuild() {
+    mkdir fc
+    cd fc
+
+    wget "$FONTCONFIG_SRC" -O fc.tar.gz || return -1
+    tar xaf fc.tar.gz || return -1
+    rm fc.tar.gz
+    cd fontconfig* || return -1
+
+    local myconf=(
+        --prefix="$FFBUILD_PREFIX"
+        --enable-libxml2
+        --disable-shared
+        --enable-static
+    )
+
+    if [[ $TARGET == win* ]]; then
+        myconf+=(
+            --host="$FFBUILD_TOOLCHAIN"
+        )
+    else
+        echo "Unknown target"
+        return -1
+    fi
+
+    ./configure "${myconf[@]}" || return -1
+    make -j$(nproc) || return -1
+    make install || return -1
+
+    cd ../..
+    rm -rf fc
+}
+
+ffbuild_configure() {
+    echo --enable-fontconfig
+}
+
+ffbuild_unconfigure() {
+    echo --disable-fontconfig
+}