Fix RingBuffer::tryWrite, cleanup #1089

	name: makefile

	on:
	push:
	branches:
	- '*'
	pull_request:
	branches:
	- '*'
	env:
	DEBIAN_FRONTEND: noninteractive

	jobs:
	linux-x86_64:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	- name: Set up dependencies
	run: \|
	sudo apt-get update -qq
	sudo apt-get install -yq libasound2-dev libcairo2-dev libdbus-1-dev libgl1-mesa-dev liblo-dev libpulse-dev libsdl2-dev libx11-dev libxcursor-dev libxext-dev libxrandr-dev xvfb
	- name: Without any warnings
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror
	run: \|
	make clean >/dev/null
	make -j $(nproc)
	- name: Run tests
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror
	run: \|
	xvfb-run make -C tests run
	- name: As C++98 mode
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror -std=gnu++98
	run: \|
	make clean >/dev/null
	make -j $(nproc)
	- name: No namespace
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror -DDONT_SET_USING_DISTRHO_NAMESPACE -DDONT_SET_USING_DGL_NAMESPACE
	run: \|
	make clean >/dev/null
	make -j $(nproc)
	- name: Custom namespace
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror -DDISTRHO_NAMESPACE=WubbWubb -DDGL_NAMESPACE=DabDab
	run: \|
	make clean >/dev/null
	make -j $(nproc)
	- name: With OpenGL 3.x
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror
	run: \|
	make clean >/dev/null
	make -j $(nproc) USE_OPENGL3=true
	- name: Without Cairo
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror
	run: \|
	make clean >/dev/null
	make -j $(nproc) HAVE_CAIRO=
	- name: Without OpenGL
	env:
	CFLAGS: -Werror
	CXXFLAGS: -Werror
	run: \|
	make clean >/dev/null
	make -j $(nproc) HAVE_OPENGL=

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