Fix problems with using f2c.e/f77.sh on plain Fortran files #524


	name: IRAF CI test

	on: [push, pull_request]

	jobs:
	tests:
	name: ${{ matrix.name }}
	runs-on: ${{ matrix.os }}
	env:
	CFLAGS: ${{ matrix.cflags }}
	LDFLAGS: ${{ matrix.ldflags }}

	strategy:
	matrix:
	include:
	- name: Ubuntu latest x86_64
	os: ubuntu-latest
	cflags: -O2 -g -Wall -Wno-stringop-truncation -Wno-unused-result -Wno-format-overflow -Wno-parentheses

	- name: Ubuntu 20.04 Focal i386
	os: ubuntu-20.04
	irafarch: linux
	ldflags: -m32
	cflags: -m32 -O2 -g -Wall -Wno-stringop-truncation -Wno-unused-result -Wno-format-overflow -Wno-parentheses

	- name: macOS x86_64
	os: macos-latest
	cflags: -O2 -g -Wall -Wno-logical-op-parentheses

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Setup dependencies on Ubuntu
	if: startsWith(matrix.os, 'ubuntu')
	run: \|
	if [ ${LDFLAGS} == '-m32' ] ; then
	sudo dpkg --add-architecture i386
	sudo apt-get update -y
	sudo apt-get install -y gcc-multilib libcurl4-openssl-dev:i386 libexpat1-dev:i386 libreadline-dev:i386 zlib1g-dev:i386
	else
	sudo apt-get update -y
	sudo apt-get install -y build-essential libcurl4-openssl-dev libexpat1-dev libreadline-dev zlib1g-dev
	fi

	- name: Build IRAF
	run: \|
	if [ "${{ matrix.irafarch }}" ] ; then export IRAFARCH=${{ matrix.irafarch }}; fi
	make

	- name: Run tests
	run: \|
	make test

	- name: Installation test
	run: \|
	sudo make install
	/usr/local/lib/iraf/test/run_tests /usr/local/lib/iraf/test/noao.astutil.md
	cd pkg/images
	xc -d -c x_images.x

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