Adding upstream version 3.2.2.upstream/3.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# [![htop logo](htop.png)](https://htop.dev)
+
+[![CI](https://github.com/htop-dev/htop/workflows/CI/badge.svg)](https://github.com/htop-dev/htop/actions)
+[![Coverity Scan Build Status](https://scan.coverity.com/projects/21665/badge.svg)](https://scan.coverity.com/projects/21665)
+[![Mailing List](https://img.shields.io/badge/Mailing%20List-htop-blue.svg)](https://groups.io/g/htop)
+[![IRC #htop](https://img.shields.io/badge/IRC-htop-blue.svg)](https://web.libera.chat/#htop)
+[![GitHub Release](https://img.shields.io/github/release/htop-dev/htop.svg)](https://github.com/htop-dev/htop/releases/latest)
+[![Packaging status](https://repology.org/badge/tiny-repos/htop.svg)](https://repology.org/project/htop/versions)
+[![License: GPL v2+](https://img.shields.io/badge/License-GPL%20v2+-blue.svg)](COPYING?raw=true)
+
+![Screenshot of htop](docs/images/screenshot.png?raw=true)
+
+## Introduction
+
+`htop` is a cross-platform interactive process viewer.
+
+`htop` allows scrolling the list of processes vertically and horizontally to see their full command lines and related information like memory and CPU consumption.
+Also system wide information, like load average or swap usage, is shown.
+
+The information displayed is configurable through a graphical setup and can be sorted and filtered interactively.
+
+Tasks related to processes (e.g. killing and renicing) can be done without entering their PIDs.
+
+Running `htop` requires `ncurses` libraries, typically named libncurses(w).
+
+`htop` is written in C.
+
+For more information and details visit [htop.dev](https://htop.dev).
+
+## Build instructions
+
+### Prerequisite
+List of build-time dependencies:
+  * standard GNU autotools-based C toolchain
+    - C99 compliant compiler
+    - `autoconf`
+    - `automake`
+    - `autotools`
+  * `ncurses`
+
+**Note about `ncurses`:**
+> `htop` requires `ncurses` 6.0. Be aware the appropriate package is sometimes still called libncurses5 (on Debian/Ubuntu). Also `ncurses` usually comes in two flavours:
+>* With Unicode support.
+>* Without Unicode support.
+>
+> This is also something that is reflected in the package name on Debian/Ubuntu (via the additional 'w' - 'w'ide character support).
+
+List of additional build-time dependencies (based on feature flags):
+*  `sensors`
+*  `hwloc`
+*  `libcap` (v2.21 or later)
+*  `libnl-3`
+
+Install these and other required packages for C development from your package manager.
+
+**Debian/Ubuntu**
+~~~ shell
+sudo apt install libncursesw5-dev autotools-dev autoconf automake build-essential
+~~~
+
+**Fedora/RHEL**
+~~~ shell
+sudo dnf install ncurses-devel automake autoconf gcc
+~~~
+
+**Archlinux/Manjaro**
+~~~ shell
+sudo pacman -S ncurses automake autoconf gcc
+~~~
+
+**macOS**
+~~~ shell
+brew install ncurses automake autoconf gcc
+~~~
+
+### Compile from source:
+To compile from source, download from the Git repository (`git clone` or downloads from [GitHub releases](https://github.com/htop-dev/htop/releases/)), then run:
+~~~ shell
+./autogen.sh && ./configure && make
+~~~
+
+### Install
+To install on the local system run `make install`. By default `make install` installs into `/usr/local`. To change this path use `./configure --prefix=/some/path`.
+
+### Build Options
+
+`htop` has several build-time options to enable/disable additional features.
+
+#### Generic
+
+  * `--enable-unicode`:
+    enable Unicode support
+    - dependency: *libncursesw*
+    - default: *yes*
+  * `--enable-affinity`:
+    enable `sched_setaffinity(2)` and `sched_getaffinity(2)` for affinity support; conflicts with hwloc
+    - default: *check*
+  * `--enable-hwloc`:
+    enable hwloc support for CPU affinity; disables affinity support
+    - dependency: *libhwloc*
+    - default: *no*
+  * `--enable-static`:
+    build a static htop binary; hwloc and delay accounting are not supported
+    - default: *no*
+  * `--enable-debug`:
+    Enable asserts and internal sanity checks; implies a performance penalty
+    - default: *no*
+
+#### Performance Co-Pilot
+
+  * `--enable-pcp`:
+    enable Performance Co-Pilot support via a new pcp-htop utility
+    - dependency: *libpcp*
+    - default: *no*
+
+#### Linux
+
+  * `--enable-sensors`:
+    enable libsensors(3) support for reading temperature data
+    - dependencies: *libsensors-dev*(build-time), at runtime *libsensors* is loaded via `dlopen(3)` if available
+    - default: *check*
+  * `--enable-capabilities`:
+    enable Linux capabilities support
+    - dependency: *libcap*
+    - default: *check*
+  * `--with-proc`:
+    location of a Linux-compatible proc filesystem
+    - default: */proc*
+  * `--enable-openvz`:
+    enable OpenVZ support
+    - default: *no*
+  * `--enable-vserver`:
+    enable VServer support
+    - default: *no*
+  * `--enable-ancient-vserver`:
+    enable ancient VServer support (implies `--enable-vserver`)
+    - default: *no*
+  * `--enable-delayacct`:
+    enable Linux delay accounting support
+    - dependencies: *pkg-config*(build-time), *libnl-3* and *libnl-genl-3*
+    - default: *check*
+
+
+## Runtime dependencies:
+`htop` has a set of fixed minimum runtime dependencies, which is kept as minimal as possible:
+* `ncurses` libraries for terminal handling (wide character support).
+
+### Runtime optional dependencies:
+`htop` has a set of fixed optional dependencies, depending on build/configure option used:
+
+#### Linux
+* `libdl`, if not building a static binary, is always required when support for optional dependencies (i.e. `libsensors`, `libsystemd`) is present.
+* `libcap`, user-space interfaces to POSIX 1003.1e capabilities, is always required when `--enable-capabilities` was used to configure `htop`.
+* `libsensors`, readout of temperatures and CPU speeds, is optional even when `--enable-sensors` was used to configure `htop`.
+* `libsystemd` is optional when `--enable-static` was not used to configure `htop`. If building statically and `libsystemd` is not found by `configure`, support for the systemd meter is disabled entirely.
+
+`htop` checks for the availability of the actual runtime libraries as `htop` runs.
+
+#### BSD
+On most BSD systems `kvm` is a requirement to read kernel information.
+
+More information on required and optional dependencies can be found in [configure.ac](configure.ac).
+
+## Usage
+See the manual page (`man htop`) or the help menu (**F1** or **h** inside `htop`) for a list of supported key commands.
+
+## Support
+
+If you have trouble running `htop` please consult your operating system / Linux distribution documentation for getting support and filing bugs.
+
+## Bugs, development feedback
+
+We have a [development mailing list](https://htop.dev/mailinglist.html). Feel free to subscribe for release announcements or asking questions on the development of `htop`.
+
+You can also join our IRC channel [#htop on Libera.Chat](https://web.libera.chat/#htop) and talk to the developers there.
+
+If you have found an issue within the source of `htop`, please check whether this has already been reported in our [GitHub issue tracker](https://github.com/htop-dev/htop/issues).
+If not, please file a new issue describing the problem you have found, the potential location in the source code you are referring to and a possible fix if available.
+
+## History
+
+`htop` was invented, developed and maintained by [Hisham Muhammad](https://hisham.hm/) from 2004 to 2019. His [legacy repository](https://github.com/hishamhm/htop/) has been archived to preserve the history.
+
+In 2020 a [team](https://github.com/orgs/htop-dev/people) took over the development amicably and continues to maintain `htop` collaboratively.
+
+## License
+
+GNU General Public License, version 2 (GPL-2.0) or, at your option, any later version.
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