maybe_command(): Ensure that command is defined and non-empty #249

	name: smoke-ubuntu-linux

	on:
	push:
	branches:
	- "*"
	tags-ignore:
	- "*"
	pull_request:

	jobs:
	ubuntu:
	env:
	PERL_USE_UNSAFE_INC: 0
	AUTHOR_TESTING: 1
	AUTOMATED_TESTING: 1
	RELEASE_TESTING: 1

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1
	- name: perl -V
	run: perl -V
	- name: Makefile.PL
	run: perl Makefile.PL
	- name: make test
	run: make test

	linux:
	name: "linux ${{ matrix.perl-version }}"
	needs: [ubuntu]
	env:
	PERL_USE_UNSAFE_INC: 0
	AUTHOR_TESTING: 1
	AUTOMATED_TESTING: 1
	RELEASE_TESTING: 1

	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	perl-version:
	[
	"5.32",
	"5.30",
	"5.28",
	"5.26",
	"5.24",
	"5.22",
	"5.20",
	"5.18",
	"5.16",
	"5.14",
	"5.12",
	"5.10",
	"5.8",
	]

	container:
	image: perl:${{ matrix.perl-version }}

	steps:
	- uses: actions/checkout@v1
	- name: perl -V
	run: perl -V
	- name: Makefile.PL
	run: perl Makefile.PL
	- name: make test
	run: make test

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