[LAU] Sonic Visualiser 3.0 released

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Hello.

Debian 8.7 here.

Trying to build Sonic Visualiser 3.0 or 3.0.1

./configure 
[...] blah 
configure: Failed to find required module capnp using pkg-config,
trying again by old-fashioned means configure: error: Failed to find
appropriate capnp library

But i have installed :  
i capnproto
i libcapnp-0.5.3
i libcapnp-dev
i libpcapnav0
i libpcapnav0-dev

Do i missed a package/library ? Or Debian 8.7 is already too old to
build Sonic Visualiser 3.0 / 3.0.1 ? 

Any help/advice would be appreciate.