Narrow the scope of the search for m4. #11

	###
	# Using Conda for dependencies, build and run NetCDF tests
	# using cmake + Visual Studio
	###

	name: Run Visual-Studio based tests using MSYS2 and micromamba

	on: [push,workflow_dispatch]

	concurrency:
	group: ${{ github.workflow}}-${{ github.head_ref }}
	cancel-in-progress: true

	jobs:

	install-dependencies:

	runs-on: windows-latest
	defaults:
	run:
	shell: msys2 {0}

	steps:
	- uses: actions/checkout@v3
	- uses: mamba-org/setup-micromamba@v1
	with:
	environment-name: CI
	- uses: msys2/setup-msys2@v2
	with:
	msystem: MINGW64
	update: true
	install: unzip automake libtool autoconf make m4

	- name: Install Micromamba dependencies
	shell: bash -l {0}
	run: micromamba install --quiet --yes hdf5 zlib cmake

	- name: Query Environment
	run: ls && env && echo "" && pwd && echo "" && which m4

	- name: Find m4
	run: find /c/msys64 -name 'm4'

	- name: CMake (Generate)
	shell: bash -l {0}
	run: >
	mkdir build &&
	cd build &&
	cmake .. -DENABLE_FILTER_TESTING=OFF

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