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. This is currently a bit hackish and the aim is to have this possibility natively supported (see this thread on sage-devel.
We assume that your PARI/GP source code is at $PARI_ROOT
You need version of Sage compiled from source that is run with the command sage
Download the script pari_sage.sh
Start Sage environment
$ cd $PARI_ROOT $ sage -sh # starts Sage environment
Optional step: apply Sage patches located in $SAGE_ROOT/build/pkg/pari/patches.
$ cd $PARI_ROOT $ make clean # start with a clean slate $ source pari_sage.sh # reading pari_build.sh $ pari_set_environment # setting properly environment variables for compilation $ pari_build # building pari $ pari_install # installing pari
$ sage -f cysignals # recompile cysignals (to be linked correctly against pari)
Compile the last version of cypari (this currently breaks, but this pull request fixes it)
$ sage -pip install git+https://github.com/defeo/cypari2
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