Builds from source.
Carries out security checks on downloads.

Add a new dockerfile and associated files, to build from a source tarball, instead of installing a built and published Alpine APK package.

Signed-off-by: Jonathan Hanson <jonathan@jonathan-hanson.org>

Signed-off-by: Vinod Kumar <kumar003vinod@gmail.com>

Closes #566.

Thanks to marleau.

Closes #600.

Fix duplicate clients being added to by_id hash before the old client
was removed.

Closes #645.

This occurred when a bridge connected for the first time and so made a
local subscription for outgoing topics.

Closes #701.

This reverts commit 6fc7cadb.

The signal handler thread on win32 did listen to 4 HANDLEs,
of which only 3 were initialized.
The result was 1 thread eating 100% cpu.
This commit reduces the HANDLE array storage.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>

https://forum.snapcraft.io/t/errors-when-building-via-launchpad/7448

Closes #849. Closes #965. Thanks to Wolfgand Hottgenroth and Dustin Sallings.

Closes #481.

Closes #968.

At the moment, pkg-config hint files are only installed when CMake is
used as build system. However, it is very convenient for programs using
libmosquitto to have these files always in place, so let's add it
here, too.

Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>

Signed-off-by: Fredrik Fornwall <fredrik@fornwall.net>