Debian specific setup ===================== The core part of the `cysignals' Cython package comes in different flavours. Each flavour is distributed within a distinct Debian package, and these cannot be co-installed. At the time of writing, there are two flavours: the `bare' flavour is built against no specific library and is meant for generic usage; the `pari' flavour is additionally built against the PARI/GP library (version 2.8 or higher) and has a hard-dependency on the PARI/GP runtime library package, and is used by the Sage[Math] umbrella software (from where `cysignals' has been extracted). To be clear, the `pari' flavour contains (i.e. is a superset of) the `bare' flavour. Their respective Debian packages are both a concretization of the virtual Debian package `python-cysignals', their respective flavour being appended as suffix (with a dash) to their package name, as expected: `python-cysignals-bare' and `python-cysignals-pari'. For Debian packages that must (runtime-)depend on `cysignals': - if your usage does not require the PARI/GP Computer Algebra System (CAS), then you must depend on the virtual Debian package `python-cysignals'; - otherwise, you must explicitly depend on the concrete Debian package `python-cysignals-pari'. This approach helps users to avoid installing a full CAS whenever such a big (not to say Huge) machinery is not necessary. The suite of tests and the simple example furnished by the upstream team are distributed `as-is' within the Debian package `python-cysignals-doc'. At the time of writing, this material does not involved the PARI/GP CAS, even so the tests require the debugging tool `cysignals-CSI' as distributed in the Debian package `cysignals-tools' to be performed properly; straightforward Makefile scripts to run them are provided. -- Jerome Benoit <calculus@rezozer.net> Sun, 02 Oct 2016 23:57:03 +0000
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