How do I install a GAP package in Sage?

gap
install

asked 2019-03-25 20:58:00 +0100

I would like to install the package DiGraphs (https://www.gap-system.org/Packages/d...) into the GAP version that is part of Sage. I just installed the latest version of Sage, Sage 8.6, on a Mac. There is a page about doing this here: https://wiki.sagemath.org/InstallingG... but you will notice that at the top it says "Since GAP 4.10 release, in Sage 8.6 (Jan 2019), you should not use the following instructions!" Of course it offers no alternatives. The readme for the DiGraphs says that you should have the GAP packages IO and orb installed. I am not able to install the IO package, which I downloaded from here: https://www.gap-system.org/Packages/i... and then put in the folder where the other GAP packages are, namely Applications/SageMath/local/share/gap/pkg/

The readme file for the IO package says to change directories to the folder containing the IO package and then run "./configure", which I have done. Next it says to run "make", but this gives me the following error:

src/io.c:14:10: fatal error: 'src/compiled.h' file not found

#include "src/compiled.h" /* GAP headers */

Can anyone help me with this? I have had the DiGraphs package installed within GAP inside of Sage previously, but I recently got a new computer and had to reinstall everything, and it seems certain things have changed with the new version of Sage.

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answered 2019-03-26 15:42:56 +0100

David E. Roberson
71 ●1 ●1 ●9

In the end I did the following and it seems to have worked:

I went here: http://www.cecm.sfu.ca/sage/spkg/upst... and downloaded the version of GAP 4.10 from there that already has io and orb and digraphs in it. Then I replaced the gap folder in /Applications/SageMath/local/share/ with this new gap folder. I opened a terminal at this new gap folder and ran "./configure" and then "make". Then I opened a terminal at the io folder inside this new gap folder and ran "./configure" and then "make", and then did the same at the digraphs folder.

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answered 2019-03-27 23:59:06 +0100

John Palmieri

8876 ●19 ●73 ●192 http://www.math.washin...

updated 2019-03-28 00:00:22 +0100

The "io" package, at least, wasn't included in Sage's gap_packages until Sage 8.7, so you will have to manually install "io" or download the newest version of Sage. (I think it is not yet available in pre-built binaries for the Mac, only source code so far. But binaries should be available soon.)

I just installed "orb" by downloading it and following the directions in README.md: unpack the tarball "in the pkg subdirectory of your GAP 4 installation", which is "local/share/gap/pkg". Then run ./configure and make.

I'm hoping that the same thing will work with "io", but I haven't tried it.