This post describes how to build the Paho MQTT library on Mac OS X with MacPorts openssl.
Prepare your system
Install the compiler
You need Xcode or the Xcode command line utils. If you're not sure if they are already installed open a terminal and try to run the gcc command. If you need to install the compiler a popup will appear to do so.
Install Mac Ports
If not done already download and install the MacPort system and install the openssl library by executing the following command:
sudo port install openssl
You need at least openssl-1.0.1g_0 to not be affected by heartbleed bug!
Clone the repository
Get the latest version because there are some improvements done the last weeks.
git clone git://git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.c.git
Prepare the build environment
Change to the build directory within the repository:
Now we need to export some environment variables:
If you want to build the samples:
Now give it a try and run make
There should now be some output shown and a darwin_ia64 folder should be created. There you find your paho c library files.
Hope this helps to build your paho library.