Step by step tutorial on how to use PARI/GP development version in Sage

This tutorial explains how to use a PARI/GP development version inside Sage.

Prerequisites

1. We assume that your PARI/GP source code is at $PARI_ROOT
2. You need to use a version of Sage compiled from source located at $SAGE_ROOT

Procedure

1. Download the script pari_sage.sh

2. Do

   $ cd $PARI_ROOT
   $ sage -sh                # starts Sage environment
   $ source pari_build.sh    # reading pari_build.sh
   $ pari_set_environment    # setting properly environment variables for compilation
   $ pari_build              # building pari
   $ pari_install            # installing pari

3. Recompile cysignals

$ sage -f cysignals       # recompile cysignals (to be linked correctly against pari)

1. Compile the last version of cypari

$ sage -pip install git+https://github.com/defeo/cypari2

1. Recompile what needs to be

$ sage -br

Procedure to restore the standard PARI package in Sage

$ sage -f pari
$ sage -f cysignals
$ sage -f cypari
$ sage -br