Hello,

GNU Guile-CV 0.3.1 is released.

This is a maintenance release, which fixes a bug in the =pre-inst-env=
script, which is used by Guile-CV at build time and may also be used to
test and run an uninstalled Guile-CV instance.

  [ for those who wouldn't know

  [ the message is marked-up using org-mode - https://orgmode.org/ - and
  [ best viewed in emacs, or any org-mode aware editor, or (skip reading
  [ here and) visit

  [	https://www.gnu.org/software/guile-cv/
  [ or
  [	https://savannah.gnu.org/projects/guile-cv

* About

[[http://www.gnu.org/software/guile-cv/][GNU Guile-CV]]
Image Processing and Analysis in [[http://www.gnu.org/software/guile/][Guile]]
a Computer Vision functional programming library

Guile-CV is based on [[http://ukoethe.github.io/vigra/][Vigra]] (Vision with Generic Algorithms), enhanced
with additional algorithms (Image Textures, Delineate, Reconstruction
and many more), all accessible through a nice, clean and easy to use
high level API.

Guile-CV is natively multi-threaded, and takes advantage of multiple
cores, using high-level and fine grained application-level parallelism
constructs available in Guile, based on its support to POSIX threads.

* Download

Here are the compressed sources and a GPG detached signature [fn:1]:

	http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.3.1.tar.gz
	http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.3.1.tar.gz.sig

This released was bootstrapped with the following tools:

	-] gcc              (Debian 11.2.0-10) 11.2.0 
	-] autoconf         (GNU Autoconf) 2.71 
	-] automake         (GNU automake) 1.16.5 
	-] libtool          (GNU libtool) 2.4.6 
	-] makeinfo         (GNU texinfo) 6.8 
	-] pdflatex         3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian)
	-] vigra	    1.11.1
	-] vigra_c	    commit e81e12a [Sep 2019]
	-] guile-3.0        3.0.7.51-b1bba
	-] guile-lib-1.0    0.2.7

* Changes since 0.3.0

Here is a summary of visible changes since version 0.2.1. See GNU
Guile-CV's [[http://git.savannah.gnu.org/cgit/guile-cv.git][git summary]] and [[http://git.savannah.gnu.org/cgit/guile-cv.git/log/][git log]] for a complete description.

** Bug fixing

The =pre-inst-env.in= script has been fixed and now adds a specific
build time library location, so Guile 3.0 (>= 3.0.6) finds libguile-cv
at build time.

Guile 3.0 (>= 3.0.6) does not use libltdl anymore, and although in guile
(system foreign-library) module, both the comment and the definition of
augment-ltdl-library-path seems to take care of finding .so files either
aside .la or in a .libs/ subdir, it does not work.

* Bug reports

Please report bugs to bug-guile-cv@gnu.org

* Mailing lists

For the time being, Guile-CV uses Guile's mailing list:

  guile-user@gnu.org is for general user help and discussion;

  guile-devel@gnu.org is used to discuss most aspects of Guile-CV,
  including development and enhancement requests.


David


[fn:1]

  Use a .sig file to verify that the corresponding file (without the
  .sig suffix) is intact.  First, be sure to download both the .sig file
  and the corresponding tarball.  Then, run a command like this:

	gpg --verify guile-cv-0.3.1.tar.gz.sig

  If that command fails because you don't have the required public key,
  then run this command to import it:

	gpg --keyserver keys.gnupg.net --recv-keys A3057AD7

  and rerun the 'gpg --verify' command