[Debian-astro-maintainers] Bug#956578: libcasa-python3-4: package became uninstallable with update of libboost-python1.67.0

[Giacomo Mulas]

On Mon, 13 Apr 2020, Sebastian Ramacher wrote:

> This is caused by the ongoing effort to remove Python 3.7. casacore
> needs to be rebuilt against the new libboost-python1.67.0
> version. But this build fails with:
>
> | -- Looking for python3 specific environment...
> | -- Found PythonInterp: /usr/bin/python3.7 (found version "3.7.7")
> | -- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so (found version "3.8.2")
> | -- Found Boost: /usr/include (found version "1.67.0")
> | CMake Error at /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:146 (message):
> |   Could NOT find Boost (missing: python37) (found version "1.67.0")
> | Call Stack (most recent call first):
> |   /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:393 (_FPHSA_FAILURE_MESSAGE)
> |   /usr/share/cmake-3.16/Modules/FindBoost.cmake:2179 (find_package_handle_standard_args)
> |   python3/CMakeLists-older-cmake.txt:37 (find_package)
> |   python3/CMakeLists.txt:4 (include)

I guess this depends on CMake finding and trying to use python 3.7 instead
of 3.8, even if python 3.8 libraries are then found and selected.  Isn't
there a way to force CMake to use python 3.8?  I confess I am more familiar
with autotools than with CMake, but I would be very surprised if there were
not a switch in its config to explicitly select the python to use.  I will
try to have a look at the source package and let you know if I find it out.

Thanks anyway, bye
Giacomo

-- 
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Giacomo Mulas <giacomo.mulas at inaf.it>
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INAF - Osservatorio Astronomico di Cagliari
via della scienza 5 - 09047 Selargius (CA)

tel.   +39 070 71180255
mob. : +39 329  6603810
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"When the storms are raging around you, stay right where you are"
                          (Freddy Mercury)
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