Updated license headers in files from GPL to MIT #13

	name: Ubuntu2004-R

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	build:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2
	- name: ls
	run: ls -la ${{github.workspace}}

	- name: Install deps
	run: sudo apt install -y swig autoconf automake build-essential dirmngr gnupg apt-transport-https ca-certificates software-properties-common
	- name: CRAN R
	run: \|
	sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
	sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu focal-cran40/'
	sudo apt install r-base

	- name: Configure
	run: \|
	cd ${{github.workspace}}
	./autogen.sh
	./configure --without-mpi

	- name: Build
	run: \|
	make r

	- uses: actions/upload-artifact@v2
	with:
	name: Rsomoclu
	path: ${{github.workspace}}/src/Rsomoclu_*.tar.gz

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