Fix Arch Linux build failures (doomtype.h enum error, ATOMIC_FLAG_INIT deprecation)

[pbalduino]

Credits

Issue discovered by @Valeryum999 - thank you!

Problem

Building meniOS on Arch Linux fails with compilation errors and deprecation warnings.

Error Details

Critical Error

doomtype.h:80:5: error: cannot use keyword 'false' as enumeration constant

This is blocking the build completely.

Deprecation Warnings

warning: ATOMIC_FLAG_INIT is deprecated

Multiple warnings throughout the codebase about deprecated atomic initialization.

Screenshots

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Root Cause

Arch Linux uses a very recent toolchain (cutting-edge GCC/Clang), which:

1. Enforces stricter C/C++ standards
2. Deprecates older atomic APIs
3. May have different default compilation flags

The codebase currently builds on older/stable distributions but breaks on modern ones.

Steps to Reproduce

1. Get an Arch Linux system (VM or bare metal)
2. Follow the README.md build instructions
3. Observe compilation failures

Expected: Clean build Actual: Build fails with enum/atomic errors

Files Affected

• doomtype.h:80 - enum using 'false' keyword
• Various files using ATOMIC_FLAG_INIT

Proposed Solution

1. Fix doomtype.h enum issue

The 'false' keyword is reserved in modern C/C++. Likely need to:

• Use integer literals (0, 1) instead of bool keywords in enums
• Or convert to proper boolean type instead of enum

2. Fix ATOMIC_FLAG_INIT deprecation

Modern C11/C++11 deprecates ATOMIC_FLAG_INIT in favor of:

atomic_flag flag = ATOMIC_FLAG_INIT;  // Old (deprecated)
atomic_flag flag = {0};               // Modern

3. Test on modern toolchains

• Arch Linux (rolling release)
• Recent GCC (13+)
• Recent Clang (16+)

Acceptance Criteria

• [ ] Build succeeds on Arch Linux
• [ ] No compilation errors in doomtype.h
• [ ] ATOMIC_FLAG_INIT warnings resolved
• [ ] Tested with GCC 13+ and Clang 16+
• [ ] README updated if specific toolchain versions required
• [ ] CI/build testing on modern distributions

Priority

Medium-High - Blocks adoption on modern Linux distributions

Testing Environment Needed

• Arch Linux VM or bare metal
• Or Docker container with Arch Linux
• Follow exact README steps to reproduce

Environment Info

When reporting or testing, please provide:

# Compiler versions
gcc --version
clang --version

# Distribution info
uname -a
cat /etc/os-release

# Build command used
make ...  # (include full command)

Notes

This is a portability/compatibility issue. The codebase should ideally support:

• Stable distros (Ubuntu LTS, Debian stable)
• Rolling distros (Arch Linux, Fedora)
• Range of compiler versions

Consider adding CI builds for multiple distributions to catch these early.

Related

• Build system: #195 (userland build)
• Doom integration: #300-#312 (Doom build system)

Thanks Again

@Valeryum999 - Your testing on Arch Linux helps make meniOS more portable!