taskGNU Astronomy Utilities - Tasks: task #15053, Configure option to download and...


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task #15053: Configure option to download and install dependencies

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Thu 27 Sep 2018 11:11:59 AM UTC
Should Start On:  Wed 26 Sep 2018 10:00:00 PM UTC Should be Finished on:  Wed 26 Sep 2018 10:00:00 PM UTC
Category:  Installation Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Thu 27 Sep 2018 11:11:59 AM UTC, original submission:  

The procedure to download, unpack and install Gnuastro's dependencies from source is very standard and well known (as described in the manual).

So to greatly simplify the necessary steps a new Gnuastro user has to take, we can add a configure-time option like `--enable-build-dependencies'.

When this option is called, once the configure script checks all the dependencies, it can start downloading the tarballs of the ones that are missing and build and install them. Afterwards it can re-do the checks to make sure they are installed and usable and continue with its other checks.

This will greatly simplify the installation process for new users, while also ensuring that they get the latest packages.

All Gnuastro's dependencies are very small and basic libraries (except for Ghostscript!). For Ghostscript we can use the user's package manager, or just ignore it over all (it is only for generating PDF outputs in ConvertType), its not an mandatory, or even important, dependency.

In fact, with the various package manager commands we have gathered in the book for the dependencies, we might also be able to simply use them (instead of downloading and building them from source).

Probably we can implement this simpler solution first, or build from source only when the operating system's package manager is not recognized.

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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