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Why is the Ubuntu FlightGear package an older version?

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Why is the Ubuntu FlightGear package an older version?

Postby SurferTim » Fri Aug 09, 2019 11:11 am

Split off from the topic METAR not working.


SurferTim wrote in Fri Aug 09, 2019 10:42 am:
legoboyvdlp wrote in Thu Aug 08, 2019 11:58 am:Notice METAR now works in the last released 2018.3.3 and 2019.1.

...and it still doesn't work with Ubuntu. v2018.3.1. And before you suggest upgrading, there is no upgrade available for Ubuntu FG. Latest version is 2018.3.1

V12 wrote in Fri Aug 09, 2019 11:00 am:For Ubuntu 18.10 and 19.04 is release 2018.3.2 but in this version METAR doesn't works.

legoboyvdlp wrote in Fri Aug 09, 2019 11:05 am:Yes - that's why I said 2018.3.3 V12...

I know. Thanks! That was just a reminder to those in control that the current stable downloadable Ubuntu version is still experiencing problems with METAR.
Last edited by Johan G on Mon Aug 12, 2019 2:50 pm, edited 1 time in total.
Reason: Split off from the topic "METAR not working". Inserted quotes for context.
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Re: METAR not working

Postby Thorsten » Fri Aug 09, 2019 12:09 pm

That was just a reminder to those in control that the current stable downloadable Ubuntu version is still experiencing problems with METAR.


It's pointless to discuss Ubuntu packages here - they need to be discussed with the Ubuntu package managers. 'Those in control' of FG can't do anything about a Linux distro.
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Re: METAR not working

Postby SurferTim » Fri Aug 09, 2019 12:29 pm

Thorsten wrote in Fri Aug 09, 2019 12:09 pm:
That was just a reminder to those in control that the current stable downloadable Ubuntu version is still experiencing problems with METAR.


It's pointless to discuss Ubuntu packages here - they need to be discussed with the Ubuntu package managers. 'Those in control' of FG can't do anything about a Linux distro.

That is an interesting concept. I'll remember that as I develop remote stuff for Linux. You don't support it, no sense sharing it, is there?

Edit: So you do not support one OS over another? Is it possible to download a current Windows version from the download page? Yes.
Is it possible to download a current Ubuntu version from the download page, even though there is a link to do it? No.
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Re: METAR not working

Postby V12 » Fri Aug 09, 2019 12:53 pm

Yes, You can download sources and compile FG. For me, it doesn't works, process failed on some dependencies. And I'm not linux guru to solve it. Waiting for 2019.1 from ppa.
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Re: METAR not working

Postby SurferTim » Fri Aug 09, 2019 1:04 pm

V12 wrote in Fri Aug 09, 2019 12:53 pm:Yes, You can download sources and compile FG. For me, it doesn't works, process failed on some dependencies. And I'm not linux guru to solve it. Waiting for 2019.1 from ppa.

Me too. I was just venting. I don't have a problem with the METAR, and haven't since the day it failed. Only took about an hour for me to hack the code and insert a man-in-the-middle server to redirect the request.

I can't compile it either. It apparently builds the object files ok, then gets right down to the final compile steps and fails.

I do remember that this is open source. I would rather have stuff happen slow than not at all.
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Re: METAR not working

Postby Thorsten » Fri Aug 09, 2019 1:15 pm

So you do not support one OS over another? Is it possible to download a current Windows version from the download page? Yes.
Is it possible to download a current Ubuntu version from the download page, even though there is a link to do it? No.


The standard of software distribution works different under Linux and Windows - under Linux, a distribution includes the OS and the majority of the available software - from the same download source - which allows using lots of shared libraries, package managers which take care of dependencies etc.

Under Windows, a 'distribution' includes pretty much the OS, and each software you install you usually install from a different vendor - so software does not make assumptions about shared libs present on your system and is very much distributed in stand-alone mode.

As for pretty much most OpenSource projects, FG does not compile Linux binaries, the distribution managers do - for the set of shared libs specific for the distribution. That means there's a lag between current FG version and what Linux distributions ship - if you want to get the latest, you have to compile yourself against the set of libs available on your computer. Given how much variation is in what libs are available for what Linux, what I compile locally is almost certainly not going to work for you anyway, so there's no real sense in sharing it.

We (the FG project) did not invent this distribution scheme, it's been around pretty much as long as I remember using Linux (SuSE 3.6 must have been the first I've installed).
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Re: METAR not working

Postby wkitty42 » Fri Aug 09, 2019 2:48 pm

i don't understand why folks on linux are having problems... i'm on linux and don't have the problems any more since the bug was fixed but i do build my own using the download_and_compile.sh (aka dnc) script... the only things i've had to add to my old EoL kubuntu 14.04 system are the newer Qt libs from a PPA and a newer cmake from the cmake repo... the cmake part is available in the dnc script... when i build, i reconfigure every time and build everything... PLIB, OSG, SG, FG and always grab the latest fgdata... always, always, always... using a script makes this a no-brainer...

FWIW: one should be logging everything from their compile attempts... that way you can go look at the log in case you lose info from the scroll back buffer being too small... i use a wrapper script to wrap my dnc script so that everything (stdout and stderr) is logged for later perusal... i've offered my script several times in the past and i'm pretty sure i've also posted the main parts of it a time or three...
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Re: METAR not working

Postby SurferTim » Fri Aug 09, 2019 3:24 pm

wkitty42 wrote in Fri Aug 09, 2019 2:48 pm:i don't understand why folks on linux are having problems... i'm on linux and don't have the problems any more since the bug was fixed but i do build my own using the download_and_compile.sh...blah blah blah

If it is that easy, why is the Ubuntu repository not updated to at least 2018.3.3?
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Re: METAR not working

Postby wkitty42 » Fri Aug 09, 2019 4:11 pm

i don't know... i do know that they are, like the dnc script maintainer, loath to include dependencies from another PPA like i do with my Qt libs... AFAIK and IIRC, that only knocks out the --launcher...

i do not know the intricacies of the build environment(s) on launchpad... i do see, however, when looking there, that the last update of flightgear was on 2019 Jan 09 but flightgear-data was not updated to match and simgear is even newer being built on 2019 May 14... AFAIK, that likely won't work since all three must be of the same version or there will be problems...

it should be noted that above i'm speaking of the plain flightgear PPA... not the flightgear-daily PPA which is more up to date... remember, though, that you cannot use both PPAs at the same time... that, too, will lead to ugly problems...
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: METAR not working

Postby Thorsten » Fri Aug 09, 2019 5:22 pm

If it is that easy, why is the Ubuntu repository not updated to at least 2018.3.3?


I'm sure the Ubuntu people would feel deeply sorry if they knew that they're not providing a timely service for you for free by not updating the repository the moment FG bumps up the version tag. Sadly, you're not telling them, you're telling the FG team how bad it is that Ubuntu does not act and you're asking the FG team for the reasons.

So they probably won't feel sorry after all...
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Re: METAR not working

Postby wkitty42 » Fri Aug 09, 2019 6:39 pm

plus there's the question of if the discussion is about the official debian/ubuntu repository or if it is about the PPA provided by saiarcot895... i assumed the latter instead of the former...
Last edited by wkitty42 on Sat Aug 10, 2019 8:49 pm, edited 1 time in total.
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
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Re: METAR not working

Postby legoboyvdlp » Fri Aug 09, 2019 8:13 pm

Ah - I see, sorry, I wasn't aware it wasn't available on Ubuntu.
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Re: METAR not working

Postby Alant » Fri Aug 09, 2019 10:35 pm

If the official Ubuntu version of Flightgear is not up to date you can very easily compile your own by following this guide http://wiki.flightgear.org/Scripted_Compilation_on_Linux_Debian/Ubuntu
This script downloads all of the packages required and builds the latest version of FG. It is reasonably well supported on the forum.
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Re: METAR not working

Postby SurferTim » Sat Aug 10, 2019 9:42 am

Alant wrote in Fri Aug 09, 2019 10:35 pm:If the official Ubuntu version of Flightgear is not up to date you can very easily compile your own by following this guide http://wiki.flightgear.org/Scripted_Compilation_on_Linux_Debian/Ubuntu
This script downloads all of the packages required and builds the latest version of FG. It is reasonably well supported on the forum.

What version does it download and compile? Where does it get the code?

I tried the download_and_compile script and it failed, but I think I know why. I had added the daily update ppa instead of the ppa for the stable version.

I might try it again.
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Re: METAR not working

Postby Alant » Sat Aug 10, 2019 9:52 am

Please read the wiki article. The script builds either the latest development or the release version. You can choose..
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