gnu: r-igraph: Move to (gnu packages graph). * gnu/packages/statistics.scm (r-igraph): Move from here... * gnu/packages/graph.scm (r-igraph): ...to here.
gnu: Add python-igraph. * gnu/packages/graph.scm (python-igraph): New variable.
gnu: Add igraph. * gnu/packages/graph.scm: New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
gnu: viewnior: Don't build icon-theme.cache. * gnu/packages/image-viewers.scm (viewnior)[arguments]: Add phase to disable building the icon-theme.cache.
gnu: googletest: Build shared libraries. * gnu/packages/check.scm (googletest)[arguments]: Pass "-DBUILD_SHARED_LIBS=ON" in #:configure-flags.
gnu: Add ois. * gnu/packages/game-development.scm (ois): New variable.
gnu: dealii: Update to 8.5.0. * gnu/packages/maths.scm (dealii): Update to 8.5.0. [arguments]: Delete 'hint-example-prefix phase, which would need adjusting for this version. Users can use e.g. 'export DEAL_II_DIR=$GUIX_ENVIRONMENT'. Adjust configuration flags.
gnu: stress-make: Patch default shell. * gnu/packages/debug.scm (stress-make)[arguments]: Add 'set-default-shell phase.
gnu: suitesparse: Update to 4.5.5. * gnu/packages/maths.scm (suitesparse): Update to 4.5.5. [source]: Add 'modules' and 'snippet' field to remove bundled source. [arguments]: Remove 'prepare-out' phase. Adjust #:make-flags for metis. Make build parallel, since it now appears to be safe. [inputs]: Add metis.
gnu: suitesparse: Use modify-phases. * gnu/packages/maths.scm (suitesparse)[arguments]: Use modify-phases.
gnu: petsc, slepc: Use 'parallel-job-count'. * gnu/packages/maths.scm (petsc, slepc)[arguments]: Set #:make-flags to override default unlimited '-j'. (petsc)[arguments]: Scrub build machine cores from installed files in 'clean-local-references' phase.
gnu: slepc: Update to 3.7.4. * gnu/packages/maths.scm (slepc): Update to 3.7.4. [source]: Use direct source link. Remove 'file-name' field.
gnu: petsc: Update to 3.7.6. * gnu/packages/maths.scm (petsc): Update to 3.7.6.
gnu: epiphany: Update to 3.24.3. * gnu/packages/gnome.scm (epiphany): Update to 3.24.3.
gnu: tracker: Update to 1.12.2. * gnu/packages/gnome.scm (tracker): Update to 1.12.2.
gnu: gnome-online-accounts: Update to 3.24.2. * gnu/packages/gnome.scm (gnome-online-accounts): Update to 3.24.2.
gnu: mutter: Update to 3.24.4. * gnu/packages/gnome.scm (mutter): Update to 3.24.4.
gnu: gedit: Support gspell. * gnu/packages/gnome.scm (gedit)[arguments]: Remove #:configure-flags. [inputs]: Add gspell.
gnu: gedit: Update to 3.22.1. * gnu/packages/gnome.scm (gedit): Update to 3.22.1.
gnu: gspell: Propagate enchant dependency. * gnu/packages/gnome.scm (gspell)[inputs]: Move enchant from here... [propagated-inputs]: ...to here.