Create Ubuntu 22.04 build container

Dockerfile-ubuntu2204

@@ -0,0 +1,60 @@
+FROM ubuntu:22.04 AS build1
+
+MAINTAINER Ray Burgemeestre
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get -y install g++ git sudo wget gnupg2 && \
+    apt-get -y install libssl-dev build-essential && \
+    apt-get -y install vim gdb strace patch && \
+    \
+    apt update -y && \
+    apt-get install -y clang-14 clang-tidy-14 libclang-14-dev clangd-14 lldb-14 lld-14 clangd-14 && \
+    apt-get install -y libc++-14-dev libc++-14-dev clang-format-14 && \
+    \
+    rm -rf /var/lib/apt/lists/*
+
+# Install newer CMake to avoid some warnings the "FindBoost" script throws on
+#  more recent versions of boost that the system CMake doesn't now about.
+# I chose a bloody new boost, so I need to use the latest RC1 (at the time of writing)
+# EDIT: actually we can get rid of this block, Ubuntu 22.04 has a recent enough version already
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.24.1/cmake-3.24.1.tar.gz && \
+    tar -zxf cmake-3.24.1.tar.gz && \
+    cd cmake-3.24.1 && \
+    ./bootstrap && \
+    make -j $(nproc) && \
+    make install && \
+    cd .. && \
+    rm -rf cmake-3.24.1 && \
+    rm -rf cmake-3.24.1.tar.gz
+
+# Install emscripten deps
+RUN sudo apt-get update && \
+    sudo apt-get install -y libsdl2-dev && \
+    (git clone https://github.com/emscripten-core/emsdk.git || true) && \
+    cd emsdk && \
+    ./emsdk install latest && \
+    ./emsdk activate latest && \
+    sudo cp -prv ./emsdk_env.sh /etc/profile.d/
+
+# Warmup emscripten (this will pre-fetch SDL2, and cache it)
+RUN /emsdk/upstream/emscripten/em++ -s WASM=1 -s USE_SDL=2 -s USE_SDL_TTF=2 -O3 /dev/null || true
+
+# Fix some weird linker issue CAF build runs into. (fails to link -lc++abi)
+RUN cp -prv /usr/lib/llvm-14/lib/libc++abi.so.1.0 /usr/lib/llvm-14/lib/libc++abi.so
+
+# EDIT: no longer needed!
+# RUN cp -prv /usr/lib/llvm-14/lib/libunwind.so.1.0 /usr/lib/llvm-14/lib/libunwind.so
+
+COPY switch-to-latest-clang /usr/local/bin/switch-to-latest-clang
+
+RUN chmod +x /usr/local/bin/switch-to-latest-clang
+
+RUN apt clean
+
+FROM scratch
+
+COPY --from=build1 / /
+
+CMD "/bin/bash"

Makefile

@@ -17,6 +17,15 @@ ubuntu2004nocache:
 ubuntu2004publish:
 	docker push rayburgemeestre/build-ubuntu:20.04
 
+ubuntu2204:
+	docker build . -f Dockerfile-ubuntu2204 -t rayburgemeestre/build-ubuntu:22.04
+
+ubuntu2204nocache:
+	docker build . -f Dockerfile-ubuntu2204 -t rayburgemeestre/build-ubuntu:22.04 --no-cache
+
+ubuntu2204publish:
+	docker push rayburgemeestre/build-ubuntu:22.04
+
 shell:
 	docker run -it -v $$PWD:$$PWD --workdir $$PWD rayburgemeestre/build-ubuntu:18.04 /bin/bash
 

switch-to-latest-clang

@@ -3,10 +3,10 @@
 set +e
 set -o pipefail
 
-update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-12 40 > /tmp/.switch-to-clang.stdout
-update-alternatives --install /usr/bin/cc cc /usr/bin/clang-12 40 >>  /tmp/.switch-to-clang.stdout
-update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-12 40 >>  /tmp/.switch-to-clang.stdout
-update-alternatives --install /usr/bin/clang clang /usr/bin/clang-12 40 >>  /tmp/.switch-to-clang.stdout
-update-alternatives --install /usr/bin/ld ld /usr/bin/ld.lld-12 40 >>  /tmp/.switch-to-clang.stdout
+update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-14 40 > /tmp/.switch-to-clang.stdout
+update-alternatives --install /usr/bin/cc cc /usr/bin/clang-14 40 >>  /tmp/.switch-to-clang.stdout
+update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-14 40 >>  /tmp/.switch-to-clang.stdout
+update-alternatives --install /usr/bin/clang clang /usr/bin/clang-14 40 >>  /tmp/.switch-to-clang.stdout
+update-alternatives --install /usr/bin/ld ld /usr/bin/ld.lld-14 40 >>  /tmp/.switch-to-clang.stdout
 
 echo compiler set to: $(readlink /etc/alternatives/c++)