configure does not detect librados or librbd since the switch to meson

[Peter Lieven]

Hi,


on Dedian / Ubuntu configure does no longer detect librbd / librados since the 
switch to meson.

I need to add dirs: ['/usr/lib'] to the cc.find_library for librados and 
librbd. But I am not familiar with meson

and can't say if thats the appropriate fix.


I would be thankful for a hint. I would create a patch to fix this and include 
it upfront of my rbd driver rewrite

that I would like to respin asap.


Peter