pkgsrc-2021Q2 branch announcement

[Greg Troxel <gdt%netbsd.org@localhost>]

[resend; the copy I sent Monday appears to have vanished]

The pkgsrc developers are proud to announce the 71st quarterly release
of pkgsrc, the cross-platform packaging system.  pkgsrc is available
with more than 26,000 packages, running on 23 separate platforms; more
information on pkgsrc itself is available at https://www.pkgsrc.org/

In total, 210 packages were added, 103 packages were removed, and 2458
package updates (to 1900 unique packages) were processed since the
pkgsrc-2021Q1 release.  Updates include 419 Python packages, 207 Ruby
packages, 169 Haskell packages, 108 perl5 packages, and 83 R packages.

As always, many packages have been brought up to date relative to
upstream.  For the 2021Q2 release we welcome the following
notable packages additions and changes to the pkgsrc collection:

 - cmake 3.20.4
 - Firefox 78.11.0 (as an ESR), 88.0.1
 - Go 1.15.13, 1.16.6
 - LibreOffice 7.1.3.2
 - LXQt 0.17
 - MariaDB 10.4.18, 10.5.10
 - Node.js 12.22.1, 14.17.0
 - openblas 0.3.15
 - PHP 7.3.28, 7.4.20, 8.0.7
 - PostgreSQL 9.6.22, 10.17, 11.12, 12.7, 13.3
 - Python 3.8.10, 3.9.5
 - qemu 6.0.0
 - qgis 3.16.7
 - Rust 1.52.1
 - spotify-qt 3.6
 - SQLite 3.35.5
 - Syncthing 1.15.1
 - TeXLive 2021
 - Thunderbird 78.10.00
 - tor 0.4.5.9
 - Tor Browser 10.0.18
 - vlc-3.0.14
 - WebKitGTK 2.32.1

This branch we say notable goodbyes to:

 - a bunch of go packages, used only for building other departed packages
 - gcc48, gcc49, gcc5
 - postgresql95
 - ruby25

Changes to the pkgsrc infrastructure and notes:

 - Added PKGSRC_BLAS_TYPES which can be set to netlib or certain
   optimized variants, which causes many programs that need a BLAS
   implementation to use the specified one.
 - fftw (-long and -quad variants added, fftwf merged into fftw, more
   parallelization options, explicit SIMD support)
 - github submodule support was added.
 - Note that Firefox, Thunderbird and likely other packages with
   difficult dependencies do not build on NetBSD 8 and other systems
   with non-recent compilers.  Users who wish to run these programs
   are advised to update to NetBSD 9 or newer versions of other
   operating systems.

Instructions on using the binary package manager can be found at
https://pkgin.net, and pkgsrc itself can be retrieved from via CVS or
tar file, and also from a mirror at https://github.com/NetBSD/pkgsrc.
See https://www.netbsd.org/docs/pkgsrc/getting.html for instructions.
The branch name for the 2021Q2 branch is "pkgsrc-2021Q2".