Fix issue #2446: rotozoom keeps the colorkey flag. #1686

	name: cppcheck Static Analysis

	# Run cppcheck on src_c changes to main branch, or any PR to main.
	on:
	push:
	branches: main
	paths:
	- 'src_c/**'

	pull_request:
	branches: main
	paths:
	- 'src_c/**'

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

	# TODO: Any more static checkers can be added here
	jobs:
	run-cppcheck:
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/[email protected]

	- name: Install deps
	run: \|
	sudo apt-get update --fix-missing
	sudo apt-get upgrade
	sudo apt install cppcheck

	- name: Run Static Checker
	# skip cppcheck on SDL_gfx and scrap for now
	run: cppcheck src_c --force --enable=performance,portability,warning \
	--suppress=:src_c/SDL_gfx/ --suppress=:src_c/scrap

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