# GL-AX1800 Package Build Results

> [!IMPORTANT]
> **Architecture Confirmed (2026-01-11):** The GL-AX1800 uses **ARMv7 rev 4 (v7l)** - 32-bit ARM architecture. The GL.iNet SDK `ipq807x-2102` correctly targets 32-bit ARM, but uses an outdated GCC 5.5.0 toolchain that cannot compile modern C++23 code.

**Date:** 2026-01-11  
**Target:** GL-AX1800 (Flint 1) - IPQ6000 SoC  
**Architecture:** ARMv7 Processor rev 4 (v7l) - 32-bit ARM  
**SDK Tested:** `ipq807x-2102` (GCC 5.5.0, ARM Cortex-A7, 32-bit) - **Correct arch, outdated compiler**

## Summary

Attempted to build `btop` and `mosh` packages using the GL.iNet SDK. Both failed due to the SDK's outdated GCC 5.5.0 toolchain.

## Findings

### SDK Architecture
The `ipq807x-2102` SDK targets **32-bit ARM** (`arm_cortex-a7`), which matches the actual hardware architecture (ARMv7). However, the toolchain is outdated (GCC 5.5.0 from ~2017) and cannot compile modern C++ standards.

### btop (v1.4.6)
- **Error:** `error: unrecognized command line option '-std=c++23'`
- **Cause:** btop requires C++23, GCC 5.5.0 only supports up to C++14
- **Resolution:** Would need GCC 11+ minimum (GCC 14 recommended)

### mosh (protobuf dependency)
- **Error:** `constexpr constructor calls non-constexpr function`
- **Cause:** protobuf 3.17.3 uses C++14 constexpr features that GCC 5.5.0 doesn't fully implement
- **Resolution:** Would need GCC 7+ for full C++14 constexpr support

### Successfully Built
- ncurses 6.2
- OpenSSL 1.1.1v
- terminfo
- cryptodev-linux 1.12
- Hundreds of kernel modules for ipq807x

## Recommendations (Updated 2026-01-11)

> [!NOTE]
> The GL-AX1800 uses ARMv7 (32-bit ARM), requiring modern ARMv7 toolchains:

1. **Use musl.cc ARMv7 toolchain** - Pre-built `armv7l-linux-musleabihf` with modern GCC
2. **Alternative: musl-cross-make** - Build your own ARM v7 toolchain with GCC 14+
3. **Not recommended: GL.iNet SDK** - Correct architecture but GCC too old (5.5.0)
4. **See detailed options in:** `agent-notes/flint1-sdk-research.md`