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Building Bitcoin Core from Read-Only Archive
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cmake-read-only.md

Working with a Read-Only Source Directory

To build with a read-only source directory, the build directory must reside outside of the source directory. For instance, it can be a sibling directory:

cmake -B ../build
cmake --build ../build

Running ctest is also supported for the read-only source directory:

ctest --test-dir ../build

Note: PR30533 improves this functionality.

To run functional tests with the read-only source directory, choose one of the following options:

  1. Disable Python bytecode creation: 
    python3 -B ../build/test/functional/test_runner.py
    or 
    env PYTHONDONTWRITEBYTECODE=1 ../build/test/functional/test_runner.py

UPDATE: Actually, there is no need to force Python to disable bytecode creation. It will skip it automaticaly if filesystem permissions do not allow to write it.

  1. Specify the Python cache prefix path somewhere outside of the source directory: 
    python3 -X pycache_prefix=$(PWD)/../build ../build/test/functional/test_runner.py
    or 
    env PYTHONPYCACHEPREFIX=$(PWD)/../build ../build/test/functional/test_runner.py
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