Package Details: astromatic-sextractor 2.28.0-1

Git Clone URL: (read-only, click to copy)
Package Base: astromatic-sextractor
Description: builds a catalogue of objects from an astronomical image (build from source)
Upstream URL:
Keywords: astronomy
Licenses: GPL3
Submitter: ydallilar
Maintainer: jankoh
Last Packager: jankoh
Votes: 5
Popularity: 0.000179
First Submitted: 2017-04-25 05:01 (UTC)
Last Updated: 2023-06-18 14:47 (UTC)

Latest Comments

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MarsSeed commented on 2023-07-25 17:01 (UTC)

@jankoh, thank you for checking openblas and verifying that it is indeed the correct dependency to use.

jankoh commented on 2023-06-18 15:08 (UTC) (edited on 2023-06-18 15:09 (UTC) by jankoh)

Package updated.

@MardSeed: Changeing dependencies to blas-openblas introduces error messages from namcap at the moment only:

$ namcap -m $PKG_NAME*.pkg.tar.zst
astromatic-sextractor W: dependency-implicitly-satisfied openblas (libraries-needed ['usr/lib/'] ['usr/bin/sex'])
astromatic-sextractor W: dependency-not-needed blas-openblas

The package blas-openblas itself does not contain needed header file cblas.h; and when using enable-openblas for configure, all we need is package openblas, which includes both the header file as well as the share-object lib. That way the package a) builds in a clean environment, and b) keeps namcap happy.

If those things change in the future, we might reconsider changing the dependencies as suggested.

MarsSeed commented on 2023-06-18 10:24 (UTC) (edited on 2023-06-18 10:25 (UTC) by MarsSeed)

Please make this depend on blas-openblas. It does not make sense to make it depend on openblas: in Arch, that is a just a barebones package. This application needs also cblas and lapacke interfaces from OpenBLAS, and that is only in blas-openblas package.

jankoh commented on 2023-06-15 22:48 (UTC)

The 2.25.0-6 package is only a small update to make the package build again in current arch. Another update to 2.28.0 is on it's way, but needs a little more twaeking to make it build again. It'll take another couple days to make this work.

jankoh commented on 2023-06-15 14:35 (UTC)

@MarsSeed, missed the recent update, thanks for notifying. I'll try to provide an update as soon as possible.

Best regards Jan

MarsSeed commented on 2023-06-15 11:31 (UTC) (edited on 2023-06-15 11:33 (UTC) by MarsSeed)

TLDR; Please change depends openblas-lapack to blas-openblas.

Arch announced on June 14 a new blas-openblas repo package.

That is the same as the earlier AUR package openblas-lapack, providing the OpenBLAS implementation of blas, cblas, lapack, lapacke.

This means the openblas-lapack AUR package should be deleted.

Users and dependent packages should switch to using the blas-openblas repo package instead.

ydallilar commented on 2018-05-24 18:30 (UTC) (edited on 2018-05-24 18:31 (UTC) by ydallilar)

Yes, that seems to be a new feature. I was thinking about it. There are a few considerations:

1) Recently updated sextractor and scamp can use openblas instead but psfex still can't (maybe an update for psfex is on the way as well?). So, for now we should be consistent probably. For example, users who compile sextractor against openblas then need to remove openblas and install atlas-lapack to compile psfex.

2) I can change dependencies from atlas-lapack to ("blas" "lapack" "cblas"). But, this doesn't explicitly state that the user has either atlas-lapack or openblas-lapack installed.

So, my goto for now:

  • change the deps to ("fftw" "blas" "lapack" "cblas")

  • add a switch to fallback to openblas-lapack if atlas-lapack doesn't exist. However, build will fail if neither of them exists.

  • manual "_use_mkl" switch to use mkl instead. This will have priority than others.

Let me know if anyone has further comments or suggestions. Thanks.

juliotux commented on 2018-05-24 17:12 (UTC)

Using "--enable-openblas --with-openblas-incdir=/usr/include" arguments in ./configure this package can be built with openblas, instead of atlas.

Also "--enable-mkl" can be used to build the pkg with mkl instead of openblas or atlas.

Using this code the makepkg should be able to detect what library to use:

_OPENBLAS=`pacman -Qq openblas-lapack 2>/dev/null` || true
if [ "$_OPENBLAS" != "" ]; then
    _EXTRAOPTS="--enable-openblas --with-openblas-incdir=/usr/include"

_MKL=`pacman -Qq intel-mkl 2>/dev/null` || true
if [ "$_MKL" != "" ]; then

build() {
  cd $srcdir/${_pkgname}-${pkgver}
  ./configure --prefix=/usr $_EXTRAOPTS

ydallilar commented on 2017-08-25 13:53 (UTC)

I would like sextractor to compile with others but it only works with atlas-lapack. You can compile atlas-lapack with --cripple-atlas-performance. That works regardless of cpu throttling check.

juliotux commented on 2017-08-25 03:24 (UTC)

Should not be better to change the dependency from "atlas-lapack" to "openblas-lapack" or simply ("blas" "lapack" "cblas")? atlas-lapack have problems not easy to solve with cpu thottling.