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====== mosquitto-clients ======

to be able to build anything on MacOS, install Command Line Tools for Xcode using the following command:
  xcode-select --install

===== cmake =====

To successfully build mosquitto, cmake is required. To install cmake, follow along these instructions: https://cmake.org/install/.

First time install:
  ./bootstrap
  make
  make install

Updating cmake:
  cmake .
  make      
  make install


===== mosquitto-clients =====
Clone master-branch from Github:
  git clone --single-branch -b master https://github.com/eclipse/mosquitto.git
Change directory into mosquitto:
  cd ./mosquitto

==== Building with SSL-support ====

When building with SSL:
  export OPENSSL_ROOT_DIR="$HOME_BREW/Cellar/openssl/1.x.x"
  export OPENSSL_INCLUDE_DIR="$OPENSSL_ROOT_DIR/include"

Generate makefiles
  cmake .
  
make & install libmosquitto
  cd ./lib
  make
  sudo make install
  
make & install mosquitto clients
  cd ../client
  make
  sudo make install

In case you screwed up, clean directory and repeat
  git clean -f -d
  git reset --hard

=== Alternatively: Build without SSL ===
To build without SSL-support add option //-DWITH_TLS=OFF//. This inherits //-DWITH_TLS_PSK=OFF//.

=== Other options ===
  * c-ares (libc-ares-dev on Debian based systems) - disable with `make WITH_SRV=no`
  * libuuid (uuid-dev) - disable with `make WITH_UUID=no`
  * libwebsockets (libwebsockets-dev) - enable with `make WITH_WEBSOCKETS=yes`
  * openssl (libssl-dev on Debian based systems) - disable with `make WITH_TLS=no`

=== cmake: Surpress Policy CMP0042 Warning ===
Add //-DCMAKE_MACOSX_RPATH=ON// to cmake command

===== c-ares =====

If you build with //-WITH_SRV=OFF// this is not needed.

Download latest archive from https://c-ares.haxx.se
  ./configure
  make
  sudo make install