branch core-updates updated (40a461f -> b6bee63)

[guix-commits]

civodul pushed a change to branch core-updates
in repository guix.

    from 40a461f  gnu: libcxx: Hide GCC's C++ headers during the build process.
     new d8f78f5  gnu: ld-wrapper: Use _IOLBF on Guile 2.0 only.
     new b6bee63  gnu: Default to Guile 3.0.

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 build-aux/build-self.scm            |   4 +-
 gnu/packages/admin.scm              |  15 +-
 gnu/packages/base.scm               |   4 +-
 gnu/packages/ci.scm                 |   2 +-
 gnu/packages/commencement.scm       |   2 +-
 gnu/packages/emacs-xyz.scm          |   4 +-
 gnu/packages/gnupg.scm              |  16 +--
 gnu/packages/gtk.scm                |  59 ++++----
 gnu/packages/guile-xyz.scm          | 269 ++++++++++++++++++++++--------------
 gnu/packages/guile.scm              |  96 +++++++++----
 gnu/packages/mail.scm               |  11 +-
 gnu/packages/package-management.scm |  63 +++++----
 gnu/packages/plotutils.scm          |  13 +-
 gnu/packages/ssh.scm                |  15 +-
 gnu/packages/version-control.scm    |   2 +-
 gnu/packages/vpn.scm                |   4 +-
 gnu/packages/web.scm                |   2 +-
 guix/gexp.scm                       |   4 +-
 guix/self.scm                       |  10 +-
 19 files changed, 361 insertions(+), 234 deletions(-)