Automic VaultAutomic Vault

brew

Install qd with Homebrew, apt, dnf, MacPorts, pacman, zypper

C++/Fortran-90 double-double and quad-double package. Version 2.3.24 via Homebrew; verified from local package data.

install

Additional install commands

macOS

Homebrewverified · 100%
brew install qd

local Homebrew formula metadata

MacPortsverified · 94%
sudo port install qd

MacPorts ports tree · devel/qd/Portfile · source: api.github.com

Linux

Debian aptverified · 92%
sudo apt install libqd-dev

Debian stable package indexes · libqd-dev · source: deb.debian.org

Fedora dnfverified · 92%
sudo dnf install qd

Fedora Rawhide package metadata · qd · source: dl.fedoraproject.org

Arch Linux pacmanverified · 92%
sudo pacman -S qd

Arch Linux sync databases · qd · source: geo.mirror.pkgbuild.com

openSUSE zypperverified · 92%
sudo zypper install libqd0

openSUSE Tumbleweed package metadata · libqd0 · source: download.opensuse.org

overview

Package summary

C++/Fortran-90 double-double and quad-double package

Commands and aliases

  • qd-config

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • narrow executable package without higher-risk signals

Signals

  • metadata:no-higher-risk-signals

Install behavior

  • No Homebrew post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 6 platform targets.
  • Installs with 1 runtime dependencies.
  • Build metadata lists 3 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
qd-configcliglobal executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08
manager version2.3.24
manager updated
local dataok
upstreamnot checked
latest detectednot detected

https://www.davidhbailey.com/dhbsoftware/

install metadata

Package metadata

Package keybrew:qd
Version2.3.24
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/qd
Homepagehttps://www.davidhbailey.com/dhbsoftware/
Repositoryhttps://github.com/BL-highprecision/QD
Upstream docshttps://github.com/BL-highprecision/QD#readme
LicenseBSD-3-Clause-LBNL
Source archivehttps://www.davidhbailey.com/dhbsoftware/qd-2.3.24.tar.gz
Dependenciesgcc
Build dependenciesautoconf, automake, libtool
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameqd
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

libqd-dev 2.3.23+dfsg.1-1.1+b2

Double-double and quad double types in C++ and F90

https://crd.lbl.gov/~dhbailey/mpdist/

sudo apt install libqd-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: qd
  • 1 dependencies
  • normalized package name match
  • Matched by: Qd
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libqd-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libqd0t64 2.3.23+dfsg.1-1.1+b2

Double-double and quad double types in C++ and F90

https://crd.lbl.gov/~dhbailey/mpdist/

sudo apt install libqd0t64
  • Section: libs
  • Architecture: amd64
  • Source Package: qd
  • 4 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Qd
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libqd0t64 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Ubuntu apt95%

libqd-dev 2.3.23+dfsg.1-1.1build1

Double-double and quad double types in C++ and F90

https://crd.lbl.gov/~dhbailey/mpdist/

sudo apt install libqd-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: qd
  • 1 dependencies
  • normalized package name match
  • Matched by: Qd
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libqd-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libqd0t64 2.3.23+dfsg.1-1.1build1

Double-double and quad double types in C++ and F90

https://crd.lbl.gov/~dhbailey/mpdist/

sudo apt install libqd0t64
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: qd
  • 4 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Qd
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libqd0t64 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
dnf95%

qd 2.3.24-7.fc44

Double-Double and Quad-Double Arithmetic

https://www.davidhbailey.com/dhbsoftware/

sudo dnf install qd
  • License: BSD-3-Clause-LBNL
  • Category: Unspecified
  • Architecture: i686
  • Source Package: qd
  • 6 dependencies
  • 4 provides
  • normalized package name match
  • Matched by: Qd
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: qd from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
dnf95%

qd-devel 2.3.24-7.fc44

Double-Double and Quad-Double Arithmetic

https://www.davidhbailey.com/dhbsoftware/

sudo dnf install qd-devel
  • License: BSD-3-Clause-LBNL
  • Category: Unspecified
  • Architecture: i686
  • Source Package: qd
  • 6 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Qd
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: qd-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
pacman95%

qd 2.3.24-2

C++/Fortran-90 double-double and quad-double library

https://www.davidhbailey.com/dhbsoftware/

sudo pacman -S qd
  • License: BSD-3-Clause
  • Architecture: x86_64
  • 5 dependencies
  • normalized package name match
  • Matched by: Qd
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: qd from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
zypper95%

libqd0 2.3.24-1.6

A library for nonlinear optimization

https://www.davidhbailey.com/dhbsoftware/

sudo zypper install libqd0
  • License: BSD-3-Clause-LBNL
  • Category: System/Libraries
  • Architecture: x86_64
  • Source Package: qd
  • 6 dependencies
  • 4 provides
  • normalized package name match
  • Matched by: Qd
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: libqd0 from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
zypper95%

qd-devel 2.3.24-1.6

Development files for qd

https://www.davidhbailey.com/dhbsoftware/

sudo zypper install qd-devel
  • License: BSD-3-Clause-LBNL
  • Category: Development/Libraries/C and C++
  • Architecture: x86_64
  • Source Package: qd
  • 3 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Qd
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: qd-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
MacPorts95%

qd

sudo port install qd
  • normalized package name match
  • Matched by: Qd
MacPorts ports tree · api.github.com · MacPorts ports tree: devel/qd/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/qd.yml

Used sources

  • Geiger risk classifier
  • Nucleus package database
  • av.db category and tag curation
  • cross-ecosystem install command graph
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment