[erlang-questions] How to get wxerlang working in in Ubuntu 14.04.4 LTS

Mon Apr 11 11:04:59 CEST 2016

Maybe the problem is related to the docker environment. I only had a brief
contact with docker so I am not sure if I remember everything correctly.

How do You connect to Erlang in the docker environment? Do You use SSH? Do
You use "-X" for the connection?
Could You check if "DISPLAY" is set?! If DISPLAY is empty You will always
get the above error.

This is just a *pseudo example* using a ssh connection to localhost:

LOCAL> ssh -X bsmr@REDACTED
Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-85-generic x86_64)
REMOTE> echo $DISPLAY
localhost:10.0

But without a proper DISPLAY variable wx (or every other X11 application)
will fail.

Regards,
Boris

2016-04-11 10:37 GMT+02:00 Stefan Houtzager <stefan.houtzager@REDACTED>:

> Thanks Boris,
>
> When I install libwxbase3.0-dev, libwxgtk3.0-dev and libglu1-mesa-dev
> instead of  freeglut3-dev wx2.8-headers wx-common libwxbase2.8
> libwxgtk2.8-dev libqt4-opengl-dev libgtk2.0-dev libgl1-mesa-dev
> libglu1-mesa-dev libpng3
> I get the same error on  wx:demo().
> which wx-config && wx-config --version-full gives
> /usr/bin/wx-config
> 3.0.0.0
>   Maybe I have to configure some files from within my script?
>
>
> On Mon, Apr 11, 2016 at 10:00 AM, Boris Mühmer <boris.muehmer@REDACTED>
> wrote:
>
>> Hello Stefan,
>>
>> You need to install *libwxbase3.0-dev* and *libwxgtk3.0-dev*.
>>
>> I also believe You should install *libglu1-mesa-dev*. I have it in my
>> erlang setup dependency list, but I can not remember why this was needed.
>> It is possible that the gl demo did not work without it.
>>
>> But "my dependency list" started with 12.04, and some things were manuall
>> changed/configured with 14.04. Maybe some things are automatically resolved
>> now (like libwxgtk3.0-dev automatically includes libwxbase3.0-dev and
>> libglu1-mesa-dev).
>>
>>
>> Regards,
>> Boris
>>
>> 2016-04-11 9:22 GMT+02:00 Stefan Houtzager <stefan.houtzager@REDACTED>:
>>
>>> Hi,
>>>
>>> I would appreciate an installscript for a recent erlang version
>>> on Ubuntu 14.04.4 LTS with wxerlang working.
>>>   I am a starting elixir developer (and for that need erlang). I would
>>> like to get wxerlang working and created a dockerimage to make my
>>> installation easy portable. I use otp_src_18.3.tar.gz and install several
>>> wx packages and others, I'm not sure if I miss some or install some that
>>> are not needed. Anyway, after the install the output of which wx-config
>>> && wx-config --version-full is
>>>
>>> /usr/bin/wx-config
>>> 2.8.12.1
>>>
>>> But wx:demo(). results in an error:
>>>
>>> Eshell V7.3  (abort with ^G)
>>> 1> wx:demo().
>>> Error: Unable to initialize gtk, is DISPLAY set properly?
>>> ok
>>> 2>
>>>
>>> The most important installs in the dockerfile (just linux commands after
>>> the RUN statements, phusion/baseimage:0.9.18 is Ubuntu 14.04.4 LTS reworked
>>> for docker)  I copied below, the full dockerfile and the logging of the
>>> output I arttached.
>>>
>>>
>>> FROM phusion/baseimage:0.9.18
>>> MAINTAINER Stefan Houtzager <stefan.houtzager@REDACTED>
>>>
>>> # Important!  Update this no-op ENV variable when this Dockerfile
>>> # is updated with the current date. It will force refresh of all
>>> # of the base images and things like `apt-get update` won't be using
>>> # old cached versions when the Dockerfile is built.
>>> ENV REFRESHED_AT 05-04-2016
>>>
>>> # Set correct environment variables.
>>>
>>> # Setting ENV HOME does not seem to work currently. HOME is unset in
>>> Docker container.
>>> # See bug : https://github.com/phusion/baseimage-docker/issues/119
>>> #ENV HOME /root
>>> # Workaround:
>>> RUN echo /root > /etc/container_environment/HOME
>>>
>>> # Regenerate SSH host keys. baseimage-docker does not contain any, so you
>>> # have to do that yourself. You may also comment out this instruction;
>>> the
>>> # init system will auto-generate one during boot.
>>> RUN /etc/my_init.d/00_regen_ssh_host_keys.sh
>>>
>>> # Use baseimage-docker's init system.
>>> CMD ["/sbin/my_init"]
>>>
>>> # ...put your own build instructions here...
>>>
>>> # Set the locale
>>> RUN locale-gen en_US.UTF-8
>>> ENV LANG en_US.UTF-8
>>> ENV LANGUAGE en_US:en
>>> ENV LC_ALL en_US.UTF-8
>>>
>>> WORKDIR /tmp
>>>
>>> # See : https://github.com/phusion/baseimage-docker/issues/58
>>> RUN echo 'debconf debconf/frontend select Noninteractive' |
>>> debconf-set-selections
>>>
>>> # update and install some software requirements
>>> RUN apt-get update && apt-get upgrade -y && apt-get install -y curl wget
>>> git unzip autoconf make g++ gcc fop libxml2-utils xsltproc
>>>
>>> WORKDIR /
>>>
>>> RUN add-apt-repository ppa:openjdk-r/ppa
>>> RUN apt-get update && apt-get install openjdk-8-jdk -y
>>>
>>> WORKDIR /
>>>
>>> # install nano (and pico)
>>> RUN apt-get update && apt-get install nano -y
>>>
>>> # Needed for terminal handling (libc-dev libncurses5 libtinfo-dev
>>> libtinfo5 ncurses-bin)
>>> RUN apt-get -y install libncurses5-dev openssl libssl-dev m4
>>> libncurses-dev libgmp3-dev libglu-dev
>>>
>>> # For building with wxWidgets
>>> RUN apt-get -y install freeglut3-dev wx2.8-headers wx-common
>>> libwxbase2.8 libwxgtk2.8-dev libqt4-opengl-dev libgtk2.0-dev
>>> libgl1-mesa-dev libglu1-mesa-dev libpng3
>>>
>>> # For building ssl (libssh-4 libssl-dev zlib1g-dev)
>>> RUN apt-get -y install libssh-dev
>>>
>>> # ODBC support (libltdl3-dev odbcinst1debian2 unixodbc)
>>> RUN apt-get -y install unixodbc-dev
>>> RUN apt-get -y install ncurses-dev
>>> RUN wget http://www.erlang.org/download/otp_src_18.3.tar.gz
>>> RUN tar -xvzf otp_src_18.3.tar.gz
>>> RUN chmod -R 777 otp_src_18.3
>>> WORKDIR otp_src_18.3
>>> RUN ./configure
>>> RUN make
>>> RUN make install
>>> RUN cd .. && rm -R otp_src_18.3/
>>>
>>> RUN echo "ERLANG_HOME=/usr/local/lib/erlang" >> ~/.bashrc
>>> RUN echo "export PATH=$PATH:$ERLANG_HOME/bin" >> ~/.bashrc
>>> RUN echo "export DISPLAY=:100.0" >> ~/.bashrc
>>>
>>> RUN apt-get purge --auto-remove openjdk-8-jdk -y
>>> RUN rm -R /usr/lib/jvm
>>>
>>>
>>> --
>>> Kind regards,
>>>
>>> Stefan Houtzager
>>>
>>> Houtzager ICT consultancy & development
>>>
>>> www.linkedin.com/in/stefanhoutzager
>>>
>>> _______________________________________________
>>> erlang-questions mailing list
>>> erlang-questions@REDACTED
>>> http://erlang.org/mailman/listinfo/erlang-questions
>>>
>>>
>>
>
>
> --
> Kind regards,
>
> Stefan Houtzager
>
> Houtzager ICT consultancy & development
>
> www.linkedin.com/in/stefanhoutzager
>
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