Fix

ffmpeg/Makefile

@@ -26,7 +26,7 @@ ffmpeg_impl:
 	pushd x264 && \
 	./configure --cxx=$$(which c++) --enable-static --enable-shared --prefix=$$(realpath $$PWD/../x264_out) && \
 	make -j $$(nproc) && \
-	make install &&
+	make install
 
 	pushd x264 && \
 	./configure --cxx=$$(which c++) --enable-static --enable-shared && \