Обновление README.md, исходников, пакетки

assets/var/gnu/libjxl.md

@@ -0,0 +1,22 @@
+libjxl 0.11.2
+=
+https://github.com/libjxl/libjxl/archive/refs/tags/v0.11.2.tar.gz
+
+``` sh *** build ***
+./deps.sh
+mkdir -p build
+cd build
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX=/pkg/gnu/libjxl \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DBUILD_TESTING=OFF \
+  -DJPEGXL_FORCE_SYSTEM_BROTLI=ON \
+  -DJPEGXL_ENABLE_EXAMPLES=OFF \
+  -DJPEGXL_ENABLE_TOOLS=OFF
+make -j$(nproc)
+make install
+```
+
+``` sh *** build deps ***
+brotli
+```