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Re: GNUAstro on Ubuntu 22

From: Mohammad Akhlaghi
Subject: Re: GNUAstro on Ubuntu 22
Date: Thu, 13 Oct 2022 12:44:24 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3

Thanks Aaron,

So on mine the issue seems to be libgit2.so.28

Did you re-build Gnuastro from source after installing libgit2 with apt?

... unless you want me to keep trying to install from source and breaking it in creative ways, of course

It would indeed be good to be creative, and such feedback is indeed very valuable. The Conda suggestion was just to avoid such issues causing delays in your main work and since you mentioned some dependencies from Conda ;-).

Personally, I always build Gnuastro and its mandatory dependencies from source myself and don't rely on any package manager (as described in [1]): there are so many configure-time options that they can benefit from. For example simply adding CFLAGS="-g0 -O3" to the configure script will speed them up due to increased compiler optimization features (that are usually not enabled by package managers), or things like CFITSIO that need a configure-time option to access a FITS file in parallel and has CPU-specific optimizations (see [2]).


[1] https://www.gnu.org/software/gnuastro/manual/html_node/Mandatory-dependencies.html
[2] https://www.gnu.org/software/gnuastro/manual/html_node/CFITSIO.html

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