gnu: hdf5: Fix source download location.

* gnu/packages/maths.scm (hdf5): Use "release" directory and not the "current"
    directory for the source, which does not break on new upstream releases.

gnu: Add gsegrafix and dependent libraries.

* gnu/packages/math.scm (gsegrafix): New variable.
* gnu/packages/gtk.scm (pangox-compat): New variable.
* gnu/packages/gnome.scm (libidl, orbit2, libbonobo, gconf, gnome-mime-data,
  gnome-vfs, libgnome, libart-lgpl, libgnomecanvas, libgnomeui, libglade,
  libgnomeprint, libgnomeprintui, libbonoboui): New variables.

gnu: Edit synopses of petsc packages.

* gnu/packages/maths.scm (petsc) [synopsis]: Shorten.
  (petsc-complex,petsc-openmpi,petsc-complex-openmpi) [synopsis]:
  Repeat synopsis from petsc package with extensions.  [description]: Remove.

gnu: Add superlu-dist package.

* gnu/packages/maths.scm (superlu-dist): New variable.
* gnu/packages/patches/superlu-dist-scotchmetis.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: Add pt-scotch package.

* gnu/packages/maths.scm (pt-scotch): New variable.

gnu: Add scotch package.

* gnu/packages/maths.scm (scotch): New variable.
* gnu/packages/patches/scotch-test-threading.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: pspp: Upgrade to 0.8.3

* gnu/packages/maths.scm (pspp): Update to 0.8.3.

gnu: Add petsc-openmpi.

* gnu/packages/maths.scm (petsc-openmpi): New variable.
  (petsc-complex-openmpi): New variable.

gnu: petsc: Clean some more leaked chroot references

* gnu/packages/maths.scm (petsc)[arguments]: Scrub some
  config-generated header files before build.  Only remove files if
  they exist.

gnu: Add missing import in (gnu packages maths).

* gnu/packages/maths.scm: Use (guix utils), which was needed since
  b9100e2f.

gnu: Add missing copyright line

* gnu/packages/maths.scm: Add copyright line missing from 3de01d3.

gnu: petsc: Add input superlu.

* gnu/packages/maths.scm (petsc): Configure with superlu support.

gnu: Add superlu

* gnu/packages/maths.scm (superlu): New variable

gnu: Add petsc

* gnu/packages/maths.scm (petsc): New variable.
  (petsc-complex): New variable.
* gnu/packages/patches/petsc-fix-threadcomm.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: gmsh: Fix typos

* gnu/packages/maths.scm (gmsh): Fix typo and space aftern
  end-of-sentence.

gnu: Add gmsh

* gnu/packages/maths.scm (gmsh): New variable

guix: cmake: Add input and package libraries to the rpath, and adapt package
  definitions accordingly.

* guix/build/cmake-build-system.scm (configure): Add flags.
* gnu/packages/maths.scm (lapack): Drop special code.
* gnu/packages/ssh.scm (libssh): Drop special code.
* gnu/packages/slim.scm (slim): Drop special code and enable shared library.

Co-authored-by: Eric Bavier <bavier@member.fsf.org>

gnu: lapack: Augment library rpath

* gnu/packages/maths.scm (lapack) [arguments]: New post-installation
  phase to augment the rpath of installed libraries.

gnu: lapack: Build shared libraries

* gnu/packages/maths.scm (lapack) [arguments]: Add -DBUILD_SHARED_LIBS to
  #:configure-flags

gnu: Synchronize synopses and descriptions with the Womb.

* gnu/packages/gnunet.scm (gnunet): Synchronize description and synopsis
  with upstream.
* gnu/packages/maths.scm (units): Likewise.
* gnu/packages/grub.scm (grub): Likewise.
* gnu/packages/pretty-print.scm (enscript): Likewise.