[lwip-users] mqtt client memory footprint?

[m8847]

Hi all,

I'm considering adding mqqt client to an old product, (without SSL), so I 
thought I should ask here, if someone has some rough figure on the used program 
memory.  

I will need to upgrade lwip on this platform in order to compile the mqtt 
code, which will take some time & effort, which is why I ask this before 
starting this.

Thanks,
  Micael