Use new vcpkg libffi dll name ffi-8.dll (#1237) #18

	name: "Linux Build"
	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-20.04
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install autopoint build-essential libdbi-dev libtool-bin tcl-dev lua5.1 liblua5.1-0-dev valgrind dc python3-pip python3-setuptools libpango1.0-dev ghostscript gettext
	sudo pip install cpp-coveralls

	- name: Build
	run: \|
	V=$(cat VERSION)
	./bootstrap
	./configure --prefix=/opt/rrdtool-master
	make
	sudo make install
	/opt/rrdtool-master/bin/rrdtool
	/opt/rrdtool-master/share/rrdtool/examples/4charts.pl
	- name: Run Checks
	run: \|
	make check
	- name: Test bindings
	run: \|
	(cd bindings/perl-shared && make test)
	(cd bindings/python && sudo chown -R $USER . && python setup.py test)
	- name: Run "rrdcached-tcp"
	run: \|
	make check TESTS_STYLE="rrdcached-tcp"
	- name: Run "rrdcached-udp"
	run: \|
	make check TESTS_STYLE="rrdcached-unix"
	- name: Run valgrind
	run: \|
	make check TESTS_STYLE="valgrind-logfile" TESTS="modify1 modify2 modify3 modify4 modify5 tune1 tune2 graph1 rrdcreate dump-restore create-with-source-1 create-with-source-2 create-with-source-3 create-with-source-4 create-with-source-and-mapping-1 create-from-template-1 dcounter1 vformatter1 list1 pdp-calc1"
	podchecker doc/*.pod
	- name: Dist and Re-Build Test
	run: \|
	V=$(cat VERSION)
	make dist
	tar xf rrdtool-$V.tar.gz
	cd rrdtool-$V
	./configure
	make
	sudo make install
	cd /opt/rrdtool-$V
	bin/rrdtool

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