Package: cmake Version: 3.15.4-1 Control: affects -1 src:casacore Severity: important
Dear maintainer, when both Python 3.7 and 3.8 are installed, cmake does not find the development files of Python 3.7 and fails if not 3.8 development files are installed. Specifically, when I try to build casacore, with the following build dependencies: Build-Depends: [...], python3-dev, python3-numpy, [...] Here, python3-dev pull the Python 3.7 development package, but python3-numpy also depends on Python 3.8 (see bug #945824). When one now uses cmake's find_package(Python3 REQUIRED COMPONENTS Interpreter Development NumPy) to get the required Python 3 components (of the default Python package, which is 3.7), the resulting error is -------------------------------8<----------------------------------- CMake Error at /usr/share/cmake-3.15/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find Python3 (missing: Python3_LIBRARY Python3_INCLUDE_DIR Development NumPy) (found version "3.8.0") Call Stack (most recent call first): /usr/share/cmake-3.15/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-3.15/Modules/FindPython/Support.cmake:1653 (find_package_handle_standard_args) /usr/share/cmake-3.15/Modules/FindPython3.cmake:215 (include) python3/CMakeLists-cmake3.14.txt:3 (find_package) python3/CMakeLists.txt:4 (include) -------------------------------8<----------------------------------- This currently breaks the build of the casacore package for the standard Python version (and it looks that this will always happen when the standard version is not the newest supported one). Best regards Ole
