[GAP Forum] XGap on OSX Mojave

[Dmitrii Pasechnik]

Hi,
On Fri, Apr 12, 2019 at 03:08:34PM +0100, Bryan Dunphy wrote:
> 
> 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 suspect that XQuartz might not work on macos 10.14.
Are you able to run, say, XQuartz's xterm?
If this works, then you might try launching xgap from xterm, or
at least with an instance of xterm running.

HTH
Dmitrii

> 
> 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
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