fix: permission issues from 465d4ec3

Signed-off-by: Alix von Schirp <github@avonschirp.bootmedia.de>

Dockerfile

@@ -5,7 +5,7 @@ ARG FFMPEG_VERSION=8.0.1
 ARG X264_COMMIT=b35605a
 ARG LAME_VERSION=3.100
 
-ARG PREFIX=/opt/ffmpeg
+ARG PREFIX=/tmp/ffmpeg-build
 ARG MAKEFLAGS="-j4"
 
 RUN wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc
@@ -16,8 +16,6 @@ RUN apt-get install -y libclang-rt-20-dev-wasm32 libclang-rt-20-dev-wasm64 libc+
 RUN apt-get update && apt-get install -y autoconf libtool build-essential pkgconf
 
 
-FROM build AS userbuild
-
 USER ${BUILD_USER}
 
 # libx264
@@ -106,8 +104,8 @@ RUN emmake make -j4 && \
   emmake make install
 
 
-COPY ./src/ffprobe-wasm-wrapper.cpp /build/src/ffprobe-wasm-wrapper.cpp
-COPY ./Makefile /build/Makefile
+COPY --chown=${BUILD_USER}:${BUILD_USER} ./src/ffprobe-wasm-wrapper.cpp /build/src/ffprobe-wasm-wrapper.cpp
+COPY --chown=${BUILD_USER}:${BUILD_USER} ./Makefile /build/Makefile
 
 WORKDIR /build
 

Makefile

@@ -2,8 +2,8 @@ dist/ffprobe-wasm.js:
 	mkdir -p dist && \
 	emcc --bind \
 	-O3 \
-	-L/opt/ffmpeg/lib \
-	-I/opt/ffmpeg/include/ \
+	-L/tmp/ffmpeg-build/lib \
+	-I/tmp/ffmpeg-build/include/ \
 	-s EXPORTED_RUNTIME_METHODS="[FS, cwrap, ccall, getValue, setValue, writeAsciiToMemory]" \
 	-s INITIAL_MEMORY=268435456 \
 	-lavcodec -lavformat -lavfilter -lavdevice -lswresample -lswscale -lavutil -lm -lx264 \