Add GitHub Actions config for Clang 4.0.1 builds

Dockerfile

@@ -0,0 +1,37 @@
+FROM ubuntu:latest
+
+MAINTAINER Léo <leo@leolam.fr>
+
+# devkitpro/devkita64:latest
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends apt-utils && \
+    apt-get install -y --no-install-recommends sudo ca-certificates pkg-config curl wget xz-utils make git gnupg && \
+    apt-get install -y --no-install-recommends gdebi-core && \
+    apt-get install -y --no-install-recommends cmake && \
+    apt-get install -y --no-install-recommends libncurses5 ninja-build && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN wget https://github.com/devkitPro/pacman/releases/latest/download/devkitpro-pacman.amd64.deb && \
+    gdebi -n devkitpro-pacman.amd64.deb && \
+    rm devkitpro-pacman.amd64.deb && \
+    dkp-pacman -Scc --noconfirm
+
+RUN dkp-pacman -Syyu --noconfirm switch-dev && \
+    dkp-pacman -Scc --noconfirm
+
+ENV DEVKITPRO=/opt/devkitpro
+ENV DEVKITA64=/opt/devkitpro/devkitA64
+ENV PATH=${DEVKITPRO}/tools/bin:$DEVKITA64/bin:$PATH
+
+# BotW build
+
+RUN wget https://releases.llvm.org/4.0.1/clang+llvm-4.0.1-x86_64-linux-gnu-debian8.tar.xz && \
+    tar xf clang+llvm-4.0.1-x86_64-linux-gnu-debian8.tar.xz && \
+    rm clang+llvm-4.0.1-x86_64-linux-gnu-debian8.tar.xz && \
+    mv clang+llvm-4.0.1-x86_64-linux-gnu-debian8 /opt/clang-4.0.1
+
+ENV UKING_CLANG=/opt/clang-4.0.1