Add libjxl for JPEG-XL support

scripts.d/50-libjxl/45-brotli.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+BROTLI_REPO="https://github.com/google/brotli.git"
+BROTLI_COMMIT="f4153a09f87cbb9c826d8fc12c74642bb2d879ea"
+
+ffbuild_enabled() {
+    return 0
+}
+
+ffbuild_dockerbuild() {
+    git-mini-clone "$BROTLI_REPO" "$BROTLI_COMMIT" brotli
+    cd brotli
+
+    mkdir build && cd build
+
+    cmake -G Ninja -DCMAKE_TOOLCHAIN_FILE="$FFBUILD_CMAKE_TOOLCHAIN" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$FFBUILD_PREFIX" -DCMAKE_POSITION_INDEPENDENT_CODE=ON ..
+    ninja -j$(nproc)
+    ninja install
+
+    # Build system is severely lacking in options, clean up after it
+    rm -r "${FFBUILD_PREFIX}"/bin
+    mv "${FFBUILD_PREFIX}"/lib/libbrotlienc{-static,}.a
+    mv "${FFBUILD_PREFIX}"/lib/libbrotlidec{-static,}.a
+    mv "${FFBUILD_PREFIX}"/lib/libbrotlicommon{-static,}.a
+
+    if [[ $TARGET == win* ]]; then
+        rm "${FFBUILD_PREFIX}"/lib/libbrotli*.dll.a
+    elif [[ $TARGET == linux* ]]; then
+        rm "${FFBUILD_PREFIX}"/lib/libbrotli*.so*
+    else
+        echo "Unknown target"
+        return -1
+    fi
+}