checksrc: ensure using `ifdef`/`ifndef` when possible, fix fallouts #25509

	# Copyright (C) Daniel Fandrich, <[email protected]>, et al.
	#
	# SPDX-License-Identifier: curl

	# This workflow will triage pull requests and apply a label based on the
	# paths that are modified in the pull request.
	#
	# To use this workflow, you will need to set up a .github/labeler.yml
	# file with configuration. For more information, see:
	# https://github.com/actions/labeler

	name: 'Labeler'

	'on': [pull_request_target] # zizmor: ignore[dangerous-triggers]

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: true

	permissions: {}

	jobs:
	label:
	name: 'Labeler'
	runs-on: ubuntu-latest
	permissions:
	contents: read # To comply with https://github.com/actions/labeler documentation
	pull-requests: write # To edit labels on PRs

	steps:
	- uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b # v6.0.1
	with:
	repo-token: '${{ secrets.GITHUB_TOKEN }}'

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