i3lock/README.md

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i3lock - improved screen locker
===============================
[i3lock](https://i3wm.org/i3lock/)> is a simple screen locker like slock.
After starting it, you will see a white screen (you can configure the
color/an image). You can return to your screen by entering your password.
Many little improvements have been made to i3lock over time:
- i3lock forks, so you can combine it with an alias to suspend to RAM
(run "i3lock && echo mem > /sys/power/state" to get a locked screen
after waking up your computer from suspend to RAM)
- You can specify either a background color or a PNG image which will be
displayed while your screen is locked.
- You can specify whether i3lock should bell upon a wrong password.
- i3lock uses PAM and therefore is compatible with LDAP etc.
On OpenBSD i3lock uses the bsd_auth(3) framework.
Install
-------
See [the i3lock home page](https://i3wm.org/i3lock/).
Requirements
------------
- pkg-config
- libxcb
- libxcb-util
- libpam-dev
- libcairo-dev
- libxcb-xinerama
- libxcb-randr
- libev
- libx11-dev
- libx11-xcb-dev
- libxkbcommon >= 0.5.0
- libxkbcommon-x11 >= 0.5.0
Running i3lock
-------------
Simply invoke the 'i3lock' command. To get out of it, enter your password and
press enter.
On OpenBSD the `i3lock` binary needs to be setgid `auth` to call the
authentication helpers, e.g. `/usr/libexec/auth/login_passwd`.
Building i3lock
---------------
We recommend you use the provided package from your distribution. Do not build
i3lock unless you have a reason to do so.
First install the dependencies listed in requirements section, then run these
commands (might need to be adapted to your OS):
```
autoreconf --force --install
rm -rf build/
mkdir -p build && cd build/
../configure \
--prefix=/usr \
--sysconfdir=/etc \
--disable-sanitizers
make
```
Upstream
--------
Please submit pull requests to https://github.com/i3/i3lock