[gccjit] provide optional CI check to build with gccjit trunk #27

	name: Build (gccjit-trunk)
	on:
	push:
	pull_request:
	types: [labeled, synchronize, opened, reopened]

	jobs:
	build:
	runs-on: ubuntu-24.04
	if: contains(github.event.pull_request.labels.*.name, 'check-gcc-trunk')
	env:
	LLVM_DIR: /usr/lib/llvm-18/cmake
	steps:
	- uses: actions/checkout@v4

	- name: Install build tools and libraries
	run: \|
	sudo apt-get update
	sudo apt-get install -y gcc-14 g++-14 gcc-14-multilib cmake ninja-build llvm-18-dev llvm-18-tools \
	libmlir-18-dev mlir-18-tools python3 python3-pip build-essential \
	libmpfr-dev libmpc-dev libgmp-dev flex bison libbison-dev
	pip install lit

	- name: Run sccache-cache
	uses: mozilla-actions/[email protected]

	- name: Build GCCJIT
	run: \|
	git clone https://github.com/gcc-mirror/gcc --depth 1
	mkdir gcc-build
	mkdir gcc-install
	export PREFIX=$(pwd)/gcc-install
	export SCCACHE_GHA_ENABLED=true
	cd gcc-build
	../gcc/configure CC='sccache gcc-14' CXX='sccache g++-14' \
	--disable-multilib \
	--enable-host-shared \
	--enable-languages=jit,c++ \
	--disable-bootstrap \
	--enable-checking=release \
	--prefix=$PREFIX
	make -j$(nproc)
	make install
	echo "GCCJIT_ROOT=$PREFIX" >> $GITHUB_ENV


	- name: Build
	run: \|
	export SCCACHE_GHA_ENABLED=true
	cmake -B build -G Ninja \
	-DGCCJIT_ROOT=${GCCJIT_ROOT} \
	-DCMAKE_C_COMPILER_LAUNCHER=sccache \
	-DCMAKE_CXX_COMPILER_LAUNCHER=sccache \
	-DCMAKE_C_COMPILER=gcc-14 \
	-DCMAKE_CXX_COMPILER=g++-14 .
	cmake --build build
	cmake --build build --target gccjit-tools

	- name: Run tests
	run: \|
	sudo ln -s /usr/lib/x86_64-linux-gnu /usr/lib64
	cmake --build build --target check

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