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OpenVMS Hobbyist Program | Alpha Systems Forums | Alpha Software Forum

Author

gnuplot on Alpha

dtih
Member

Posts: 4
Joined: 10.02.15

Posted on November 04 2017 15:59

I would like to get gnuplot working on an Alpha 3000-300 with AXP OpenVMS 8.4 - hobbyist installation.

Tried gnuplot 3.4b and got the term type regis to work, but term type X11 crashes.

I built the gnuplot using @buildvms.com after removing the linkopt.vms/share entry.

Author

RE: gnuplot on Alpha

malmberg
Moderator

Posts: 464
Joined: 15.04.08

Posted on November 06 2017 02:40

I have not looked at GNUPLOT yet.

I would look over the updated GNV components, particularly the VMS specific source and build procedures.

https://sourceforge.net/projects/gnv/files/ Source repositories (Mercurial) are available at https://sourceforge.net/p/gnv/_list/hg?source=navbar .

The GNV updated modules like coreutils contain wrapper libraries that allow select() and poll() to work with X11.

There are some tricks needed for porting X11 applications to VMS. You will likely need a wrapper to the main() routine.

1. GNV Bash contains the code to set the DISPLAY environment variable that ported X11 programs expect to the VMS default DECWindows display device you created.

2. OpenVMS uses event flags instead of file descriptors for X11. It uses event flags from the free event flag pool. By default only 2 are free. Look those up in the documentation and use dup() to create file descriptors to /dev/null for them to prevent the the application from opening actual files using those file descriptor numbers.

Much of the older ports are assuming an older VMS version than 8.4.

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malmberg
June 26 2018
https://www.openvmshobbyi
st.com/forum/viewthread.p
hp?forum_id=10&thread_id=
2363

bhamakripa
June 24 2018
I am trying OpenVMS via SIMH. Need to get OS binaries for v7.3. Registered here but don't have any membership number yet which is needed to get license. Pls suggest what to do. I hardly know anyth

basilh
June 05 2018
Any other forum members in Perth, Australia?

LouF91
April 05 2018
ah maybe they love that!

malmberg
March 24 2018
Probably. More people hang out on the comp.os.vms newsgroup.

vaxpert
March 23 2018
I have a PE42A and other Alpha system stuff for sale. I'm in So California. Any interest out there?

goodbyespy
February 27 2018
To Prohorenko. Please, visit group OpenVMS in the ok.ru

peteherrera
February 24 2018
How much does it cost to buy a complete OpenVMS hardcopy documentation set of the latest version

prohorenko
February 17 2018
Please help to obtain the license on OpenVMS

malmberg
December 12 2017
HPE only makes the most current version of OpenVMS Alpha / IA64 /VAX available to hobbyists. When I had access to the Alliance 1 program it was the same. No public downloads are allowed by HPE.

nmbonao
December 08 2017
Is anybody knows OpenVMS 8.2 version downloadable version? or CD copy? Thank you very much

aarommes
December 02 2017
Bitcoin and Blockchain enthusiasts ( plus distributed computing ) please connec / reply: http://www.openvmshobbyis
t.com/forum/viewthread.ph
p?forum_id=130&thread_id=
2991

malmberg
September 10 2017
https://sourceforge.net/p
/vms-ports/wiki/VMSInstal
lation/ For the most part just use VMS 6.1 media instead of 7.3. But why run the older release?

DoeveR
August 07 2017
Where can I find the write up on running VMS 6.1 using the simh emulator?

Bart
March 20 2017
Happy to have found my password again!

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