[GAP Forum] XGap on OSX Mojave

[Bryan Dunphy]

Hi,

I have been trying to install the xgap package according to the README
included in the xgap-4.29/ subdirectory. However, when I try to run the
xgap.sh startup script in the terminal it waits for XQuartz to start up and
then simply displays the following output:

"open master failed"

I am using the most recent version of XQuartz which is 2.7.11 and Gap
4.10.1. I am running macOS 10.14.3 Mojave.

I have looked through the config.log that creates the makefile for xgap and
the PATH variable seems to be pointing to the right place for the X11
installation.

Perhaps I am missing something obvious but I was hoping someone else may
have had this issue and could suggest where I am going wrong?

The main reason I am trying to activate xgap is to use the Interactive Todd
Coxeter (itc) package which depends on xgap. If there was another way to
use the itc package I would also be open to that suggestion.

Many thanks for your help,
Bryan