Updates to the Meson build to fix portability issues and warnings #1287

	name: build-meson

	on: [push, pull_request]

	jobs:
	buildmeson:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest] # windows-latest takes to long
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: "recursive"
	fetch-depth: 0
	- name: Install Conda environment
	uses: mamba-org/setup-micromamba@v1
	with:
	environment-name: highsdev
	create-args: >-
	python==3.8
	meson
	pkgconfig
	ninja
	zlib
	catch2
	numpy
	cache-environment: true
	init-shell: >-
	bash
	zsh
	- name: Build and test
	shell: bash -l {0}
	run: \|
	meson setup bbdir -Duse_zlib=enabled -Dwith_tests=True
	meson test -C bbdir

	# highspy no longer compiled with meson
	# see if it can be done separately if it is needed for meson projects
	# - name: Test compiled highspy
	# shell: bash -l {0}
	# run: \|
	# meson configure bbdir -Dwith_pybind11=True
	# meson compile -C bbdir
	# LD_LIBRARY_PATH=$(pwd)/bbdir/src \
	# PYTHONPATH=$(pwd)/bbdir \
	# python examples/call_highs_from_python.py

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