Linux Qt SDK

An extraction-based development SDK for rebuilding modified Varinomics C++/Qt repositories on Ubuntu 24.04 x86_64 without administrator access, a desktop, Docker or an additional Qt download.

This is the public SDK used for Logonomic development. It contains external dependencies only; consumers build Logonomic and owned libraries from current source checkouts. See the Logonomic build documentation for that handoff.

SDK_FOR_ASSISTANTS.md contains the download, activation, source preparation, build and focused-test commands. The SDK supplies Qt 6.12.0, CMake 3.31.10, Ninja 1.13.2 and scoped Linux support dependencies. The host supplies Bash, ordinary core tools and GCC/G++ 13. The preflight checks the actual architecture and library ABI rather than trusting a distribution label.

Changing application and library source remains outside the SDK. Explicit source paths let review sessions compile their modified checkouts. Some native Logonomic integration checks require delegated systemd/cgroup capabilities; the handoff links the separate native CI procedure without weakening them.

Reproduce the SDK

Use Ubuntu 24.04 x86_64 with Python 3.12, python3-venv, GCC 13, APT metadata, dpkg-deb, tar, xz and readelf. Preparation may retrieve public binary inputs; using the finished SDK does not require system package installation. All compile-capable commands on the owner's workstation run through its existing queued-build. On Windows, wrap the corresponding wsl command with the Windows queue. The portable fallback queue is only for consumer machines without an existing owner queue.

python3 -m venv /tmp/qt-sdk-preparation
/tmp/qt-sdk-preparation/bin/python -m pip install --only-binary=:all: \
    --requirement preparation-requirements.txt
queued-build --slots 1 -- /tmp/qt-sdk-preparation/bin/python scripts/prepare.py \
    assemble --work /path/to/writable/sdk-work
recipe_revision=$(git rev-parse HEAD)
queued-build --slots 1 -- /tmp/qt-sdk-preparation/bin/python scripts/prepare.py \
    pack --work /path/to/writable/sdk-work --recipe-revision "$recipe_revision"

inputs.lock.json freezes the exact public binary archives, their SHA-256 hashes and sizes. Preparation reuses valid cached downloads. assemble requires a fresh staging directory and builds only the small SDK-owned Xvfb path helper; Qt and all support libraries are prebuilt supplier inputs. Packaging records and verifies every payload entry and includes no product sources or binaries. The Qt development structure, including private headers and imported targets, remains complete for the selected module archives. Optional features whose additional modules are not selected are listed as unavailable in the manifest.

scripts/prepare.py resolve --work /path/to/writable/sdk-work is the explicit maintainer operation for selecting a new frozen input set. It uses an empty APT installation state and archive cache, so the builder's installed or cached packages cannot disappear from the resulting dependency closure. Do not run it merely because application commits changed.

Inspect staged and relocated payloads with:

python3 scripts/inspect_payload.py /path/to/sdk --output /path/to/elf-inventory.json
python3 scripts/prepare.py verify /path/to/sdk

The ELF inventory records every ELF dependency and ABI requirement; verify also checks the complete packaged file inventory. Required dependencies must resolve inside the SDK or the declared glibc/GCC runtime baseline. Optional SQL server drivers and Qt Quick 3D spatial audio remain explicitly unavailable unless their external capabilities are supplied.

THIRD_PARTY_NOTICES.md identifies licenses and exact corresponding-source locations. Large binary archives belong in versioned GitHub Releases; this repository contains only the reproducible recipe, consumer scripts and documentation.