Linux

Use the correct link.exe flag for preserving the specified symbol even if it is unused #214

	name: Linux

	on:
	pull_request: {}
	push:
	branches: master

	jobs:
	test:
	strategy:
	matrix:
	platform:
	- ubuntu-latest
	toolchain:
	- stable
	runs-on: ${{ matrix.platform }}
	steps:
	- uses: actions/checkout@v2
	- uses: actions/cache@v1
	with:
	path: ~/.cargo/registry
	key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
	- uses: actions/cache@v1
	with:
	path: ~/.cargo/git
	key: ${{ runner.os }}-cargo-index-${{ hashFiles('Cargo.lock') }}
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.toolchain }}
	profile: minimal
	override: true
	# multiple additional targets are not supported, so we invoke the action multiple times
	# Feature request: https://github.com/actions-rs/toolchain/issues/165
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.toolchain }}
	profile: minimal
	target: "i686-unknown-linux-gnu"
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.toolchain }}
	profile: minimal
	target: "x86_64-unknown-linux-musl"
	- name: "Test on the native x86_64-unknown-linux-gnu"
	run: cargo test --all-features --workspace
	- name: "Test cross-compiling to x86_64-unknown-linux-musl"
	env:
	AUDITABLE_TEST_TARGET: "x86_64-unknown-linux-musl"
	run: cargo test --all-features --workspace
	- name: "Install the 32-bit GCC toolchain"
	run: sudo apt-get install gcc-multilib
	- name: "Test cross-compiling to i686-unknown-linux-gnu"
	env:
	AUDITABLE_TEST_TARGET: "i686-unknown-linux-gnu"
	run: cargo test --all-features --workspace

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