CMake build failure on Raspberry Pi

[hanno-becker]

What version of OR-Tools and what language are you using?

v9.7, language: Python

What operating system (Linux, Windows, ...) and version?

Operating System: Raspbian GNU/Linux 11 (bullseye) Kernel: Linux 5.15.84-v8+

What did you do?

git clone --branch v9.7 https://github.com/google/or-tools.git
[ apply patch for https://github.com/google/or-tools/issues/4027 ]
cd or-tools
mkdir build
cmake -S. -Bbuild -DBUILD_PYTHON:BOOL=ON
cd build
make

What did you expect to see

make succeeding

What did you see instead?

At the very end of the build, when the Python venv is being setup, the following failure occurs:

Consolidate compiler generated dependencies of target issue57 Consolidate compiler generated dependencies of target issue1303 [ 98%] Built target cvrp_disjoint_tw
make[2]: Leaving directory '/home/pi/or-tools/build' 
Consolidate compiler generated dependencies of target issue173
make[2]: Leaving directory '/home/pi/or-tools/build' 
make[2]: Leaving directory '/home/pi/or-tools/build'
make[2]: Leaving directory '/home/pi/or-tools/build' 
make[2]: Leaving directory '/home/pi/or-tools/build' [ 98%] Built target bug_fz1
[ 98%] Built target forbidden_intervals_test
[ 98%] Built target cpp11_test
[ 98%] Built target issue57
make[2]: Entering directory '/home/pi/or-tools/build' [ 98%] Built target init_test
[ 98%] Built target issue1303
make[2]: Entering directory '/home/pi/or-tools/build'
make[2]: Entering directory '/home/pi/or-tools/build' [ 98%] Built target issue173
make[2]: Entering directory '/home/pi/or-tools/build' Consolidate compiler generated dependencies of target lp_test 
Consolidate compiler generated dependencies of target min_max_test 
make[2]: Leaving directory '/home/pi/or-tools/build' Consolidate compiler generated dependencies of target fzn 
make[2]: Entering directory '/home/pi/or-tools/build' 
make[2]: Leaving directory '/home/pi/or-tools/build' 
make[2]: Leaving directory '/home/pi/or-tools/build' 
make[2]: Leaving directory '/home/pi/or-tools/build' Create venv and install ortools
[100%] Built target lp_test
[100%] Built target fzn
[100%] Built target min_max_test
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple Looking in links: /home/pi/or-tools/build/python/dist 
ERROR: Could not find a version that satisfies the requirement ortools==9.7.2996 (from versions: none) 
ERROR: No matching distribution found for ortools==9.7.2996

[notice] A new release of pip available: 22.3 -> 23.3.2 [notice] To update, run: python -m pip install --upgrade pip
make[2]: *** [CMakeFiles/python_package.dir/build.make:111: python_package] Error 1 
make[2]: Leaving directory '/home/pi/or-tools/build' 
make[1]: *** [CMakeFiles/Makefile2:2612: CMakeFiles/python_package.dir/all] Error 2 
make[1]: Leaving directory '/home/pi/or-tools/build' make: *** [Makefile:166: all] Error 2
make: Leaving directory '/home/pi/or-tools/build'

Any help is greatly appreciated. Thank you!