[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Gnuastro 0.17.81 released

From: Mohammad Akhlaghi
Subject: Re: Gnuastro 0.17.81 released
Date: Wed, 6 Jul 2022 13:29:11 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0

Hi Peter,

Thanks for the complements on the manual and for doing the checks. Its great that we haven't had any crashes so far.

About PGPLOT, as you said, the main problem is that it is not free software (others aren't allowed to re-distribute it). So when building WCSLIB, we intentionally recommend to add the configuration option to disable it in WCSLIB. I personally don't use (as much as possible!), encourage or recommend non-free software; and its also a GNU policy ;-).

That appendix on installing it from source is only there for historical reasons (because in the early days, I was curious on running it to see how it works; and after going through the frustration; I thought those notes can be useful to others). But only in the appendix, and not in the main body of the text.

DS9 and TOPCAT are in the optional dependencies from package managers, because they are used in the 'astscript-fits-view' installed script of Gnuastro: it will inspect the contents of the FITS file; if the first HDU is an image, it will be opened in DS9, and if its a table, it will be opened in TOPCAT. Both are also free software ;-).

Thanks also for the notes on Lzip. I just edited the "Quick start" section of the book to focus more on Lzip and avoid the confusions with Gzip:


As described in the announcement, and in the respective parts of the book, Lzip tarballs for software source code have a much better compression rate than Gzip. For example for Gnuastro 0.17, the Lzip'd tarball was 3.7MB while the Gzip'd tarball was 6.0MB (40% better compression). Lzip also uses much more robust archival standards than Gzip; and is a far more robust software (if you tried building it from source, you will notice how elegantly small it is).

As a result, for alpha releases I only release '.tar.lz', but for main releases and for historical reasons, I also put a '.tar.gz' file; but still recommend the '.tar.lz' ;-).

Thanks again Peter for the great comments,

reply via email to

[Prev in Thread] Current Thread [Next in Thread]