Build libgccjit in CI

Author: GuillaumeGomez

src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -ex
+
+apt-get install flex libmpfr-dev libgmp-dev libmpc3 libmpc-dev
+
+# Setting up folders for GCC
+git clone https://github.com/antoyo/gcc gcc-src
+cd gcc-src
+git checkout $(head -1 /scripts/libgccjit.version)
+
+mkdir ../gcc-build ../gcc-install
+cd ../gcc-build
+
+# Building GCC.
+../gcc-src/configure \
+    --enable-host-shared \
+    --enable-languages=jit \
+    --enable-checking=release \
+    --disable-bootstrap \
+    --disable-multilib \
+    --prefix=$(pwd)/../gcc-install
+make
+make install
+
+# Making the generated `.so` library available to linker.
+ln -s ../gcc-install/libgccjit.so /usr/lib/libgccjit.so
+
+rm -rf ../gcc-src

src/ci/docker/host-x86_64/dist-x86_64-linux/libgccjit.version

@@ -0,0 +1 @@
+compiler/rustc_codegen_gcc/libgccjit.version

src/ci/docker/host-x86_64/x86_64-gnu-llvm-16/Dockerfile

@@ -24,7 +24,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils \
   nodejs \
   mingw-w64 \
-  libgccjit-12-dev \
   && rm -rf /var/lib/apt/lists/*
 
 # Note: libgccjit needs to match the default gcc version for the linker to find it.

src/ci/docker/host-x86_64/x86_64-gnu-llvm-17/Dockerfile

@@ -24,7 +24,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   xz-utils \
   nodejs \
   mingw-w64 \
-  libgccjit-13-dev \
   && rm -rf /var/lib/apt/lists/*
 
 # Note: libgccjit needs to match the default gcc version for the linker to find it.

src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile

@@ -15,7 +15,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   sudo \
   xz-utils \
   tidy \
-  libgccjit-12-dev \
   \
 # Install dependencies for chromium browser
   gconf-service \
@@ -62,8 +61,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
-# Make `libgccjit.so` accessible.
-RUN ln -s /usr/lib/gcc/x86_64-linux-gnu/12/libgccjit.so /usr/lib/x86_64-linux-gnu/libgccjit.so
 # Fix rustc_codegen_gcc lto issues.
 ENV GCC_EXEC_PREFIX="/usr/lib/gcc/"
 
@@ -92,6 +89,11 @@ ENV RUST_CONFIGURE_ARGS \
 
 ENV HOST_TARGET x86_64-unknown-linux-gnu
 
+COPY host-x86_64/dist-x86_64-linux/libgccjit.version /scripts/
+COPY host-x86_64/dist-x86_64-linux/build-gccjit.sh /scripts/
+
+RUN sh /scripts/build-gccjit.sh
+
 ENV SCRIPT /tmp/checktools.sh ../x.py && \
   NODE_PATH=`npm root -g` python3 ../x.py test tests/rustdoc-gui --stage 2 \
     --test-args "'--no-sandbox --jobs 1'"