Add portable equivalent to pthread_once. Also move DllMain to H5TSwi… #231

	# NOTE: This action requires write permissions to be set in your GitHub
	# repo/fork for it to be able to commit changes.
	#
	# This is currently enabled via:
	#
	# settings > Actions > General > Workflow permissions
	#
	# which you will need to set to "Read and write permissions"
	#
	name: clang-format Commit Changes
	on:
	workflow_dispatch:
	push:
	permissions:
	contents: read
	jobs:
	formatting-check:
	name: Commit Format Changes
	runs-on: ubuntu-latest
	if: "!contains(github.event.head_commit.message, 'skip-ci')"
	permissions:
	contents: write # In order to allow EndBug/add-and-commit to commit changes
	steps:
	- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
	- name: Fix C and Java formatting issues detected by clang-format
	uses: DoozyX/clang-format-lint-action@9ea72631b74e61ce337d0839a90e76180e997283 # v0.13
	with:
	source: '.'
	extensions: 'c,h,cpp,hpp,java'
	clangFormatVersion: 13
	inplace: True
	style: file
	exclude: './config ./hl/src/H5LTanalyze.c ./hl/src/H5LTparse.c ./hl/src/H5LTparse.h ./src/H5Epubgen.h ./src/H5Einit.h ./src/H5Eterm.h ./src/H5Edefin.h ./src/H5version.h ./src/H5overflow.h'
	- uses: EndBug/add-and-commit@a94899bca583c204427a224a7af87c02f9b325d5 # v9.1.4
	with:
	author_name: github-actions
	author_email: 41898282+github-actions[bot]@users.noreply.github.com
	message: 'Committing clang-format changes'

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