audio/lv2: Fix Python (3.x) build, Add missing dependencies
While lv2 itself works fine with any Python version we support, the build
fails using a Python > 3.6, since the build bundles an old version of waf.
waf upstream fixed the bug in a later version. [1]
Restrict Python to up to 3.6 for now. [2]
While here:
- Add missing dependencies identified in QA. [3]
- Pet portlint (USES order)
[1] facdc0b173
PR: 235103
Reported by: cs [3]
Submitted by: Charlie Li <ml+freebsd vishwin info> [2][3]
Approved by: Michael Beer <beerml sigma6audio de>
audio/lv2: Remove CONFLICTS_INSTALL
lv2core expired and was deleted on 2016-11-30 in ports r427460
I only noted this after committing ports r499627, so remove it accordingly.
PR: 235103
Approved by: Michael Beer <beerml sigma6audio de> (maintainer)
Approved by: ports-secteam (blanket: build fix, missing dependencies)
be0c5b21a5