ci: Add missing python3-dev package for riscv64 #33746

1. 
   maflcko commented at 1:15 pm on October 30, 2025: member

   This is required to compile the pip wheels on native riscv64.
2. DrahtBot added the label Tests on Oct 30, 2025
3. 
   DrahtBot commented at 1:15 pm on October 30, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33746.

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4. 
   maflcko commented at 1:17 pm on October 30, 2025: member

   Otherwise the CI output will look like:

    0+ retry -- pip3 install --break-system-packages pycapnp
    1Collecting pycapnp
    2  Downloading pycapnp-2.2.1.tar.gz (709 kB)
    3     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 709.1/709.1 kB 539.2 kB/s eta 0:00:00
    4  Installing build dependencies: started
    5  Installing build dependencies: finished with status 'done'
    6  Getting requirements to build wheel: started
    7  Getting requirements to build wheel: finished with status 'done'
    8  Preparing metadata (pyproject.toml): started
    9  Preparing metadata (pyproject.toml): finished with status 'done'
   10Building wheels for collected packages: pycapnp
   11  Building wheel for pycapnp (pyproject.toml): started
   12  Building wheel for pycapnp (pyproject.toml): still running...
   13  Building wheel for pycapnp (pyproject.toml): still running...
   14  Building wheel for pycapnp (pyproject.toml): still running...
   15  Building wheel for pycapnp (pyproject.toml): still running...
   16  Building wheel for pycapnp (pyproject.toml): still running...
   17  Building wheel for pycapnp (pyproject.toml): still running...
   18  Building wheel for pycapnp (pyproject.toml): finished with status 'error'
   19  error: subprocess-exited-with-error
   20  
   21  × Building wheel for pycapnp (pyproject.toml) did not run successfully.
   22  │ exit code: 1
   23  ╰─> [494 lines of output]
   24...
   25
   26      -- Installing: /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/bin/capnpc-capnp
   27      *WARNING* no libcapnp detected or rebuild forced. Attempting to build it from source now. If you have C++ Cap'n Proto installed, it may be out of date or is not being detected. This may take a while...
   28      fetching https://capnproto.org/capnproto-c++-1.0.1.tar.gz into /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/bundled
   29      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/rpc-twoparty.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   30      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/stream.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   31      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/rpc.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   32      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/schema.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   33      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/persistent.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   34      copying /tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include/capnp/c++.capnp -> build/lib.linux-riscv64-cpython-312/capnp
   35      building 'capnp.lib.capnp' extension
   36      creating build/temp.linux-riscv64-cpython-312/capnp/helpers
   37      creating build/temp.linux-riscv64-cpython-312/capnp/includes
   38      creating build/temp.linux-riscv64-cpython-312/capnp/lib
   39      riscv64-linux-gnu-g++ -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O2 -Wall -fPIC -I. -Icapnp/includes -I/tmp/pip-install-6_9orfqj/pycapnp_1469b51e09c645a3b47136cf952b1f1d/build64/include -I/ci_container_base/ci/scratch/py_venv/include -I/usr/include/python3.12 -c capnp/helpers/capabilityHelper.cpp -o build/temp.linux-riscv64-cpython-312/capnp/helpers/capabilityHelper.o --std=c++14
   40      In file included from capnp/helpers/capabilityHelper.cpp:1:
   41      ./capnp/helpers/capabilityHelper.h:7:10: fatal error: Python.h: No such file or directory
   42          7 | #include "Python.h"
   43            |          ^~~~~~~~~~
   44      compilation terminated.
   45      error: command '/usr/bin/riscv64-linux-gnu-g++' failed with exit code 1
   46      [end of output]
   47  
   48  note: This error originates from a subprocess, and is likely not a problem with pip.
   49  ERROR: Failed building wheel for pycapnp
   50Failed to build pycapnp
   51ERROR: Could not build wheels for pycapnp, which is required to install pyproject.toml-based projects
   

5. 
   maflcko commented at 1:20 pm on October 30, 2025: member

   This is based on commit 72511fd02e72b74be11273e97bd7911786a82e54 to avoid the clang-16 ICE, so the CI should now pass on FILE_ENV="./ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh".
6. 
   fanquake commented at 3:52 pm on October 30, 2025: member

   ACK fae9235d39a9976a725cfc6f32cfacb1bdfcf7a3 - did not test.
7. ci: Add missing python3-dev package for riscv64 facf8b771a
8. maflcko force-pushed on Oct 30, 2025
9. 
   maflcko commented at 4:46 pm on October 30, 2025: member

   (force pushed for Alpine)
10. 
    fanquake commented at 10:03 am on October 31, 2025: member

    ACK facf8b771a192ba17c8c4f9c43f248d83b3c8015
11. fanquake merged this on Oct 31, 2025
12. fanquake closed this on Oct 31, 2025

    ---

13. maflcko deleted the branch on Oct 31, 2025

Contributors
maflcko DrahtBot fanquake

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