Fix broken LLVM install

build.Dockerfile

@@ -9,8 +9,10 @@ ADD "https://github.com/joseluisq/macosx-sdks/releases/download/14.5/MacOSX14.5.
 RUN apt-get update && \
     apt-get install -y ca-certificates
 COPY llvm.sources /etc/apt/sources.list.d/llvm.sources
+COPY install-llvm.sh .
 RUN apt-get update && \
-    apt-get install -y bash bzip2 clang-21 git lld-21 llvm-21 make patch xz-utils && \
+    ./install-llvm.sh && \
+    apt-get install -y bash bzip2 git make patch xz-utils && \
     ln -s $(which clang-21) /usr/bin/clang && \
     ln -s $(which clang++-21) /usr/bin/clang++ && \
     ln -s $(which ld64.lld-21) /usr/bin/ld64.lld && \
@@ -19,11 +21,13 @@ RUN apt-get update && \
 FROM rust:1.93-bookworm
 ADD --chmod=644 "https://apt.llvm.org/llvm-snapshot.gpg.key" /etc/apt/trusted.gpg.d/apt.llvm.org.asc
 COPY llvm.sources /etc/apt/sources.list.d/llvm.sources
+COPY install-llvm.sh .
 RUN rustup target add x86_64-pc-windows-msvc && \
     rustup target add x86_64-apple-darwin && \
     rustup target add aarch64-apple-darwin && \
     apt-get update && \
-    apt-get install -y clang-21 lld-21 libc6-dev libasound2-dev libudev-dev genisoimage mingw-w64 && \
+    ./install-llvm.sh && \
+    apt-get install -y libc6-dev libasound2-dev libudev-dev genisoimage mingw-w64 && \
     cargo install cargo-bundle xwin && \
     xwin --accept-license splat --output xwin && \
     rm -rf .xwin-cache && \