devel/gcc-arm-embedded fails package validation with synth

[Jonathan Chen]

Hi,

The devel/gcc-arm-embedded is failing in the package validation phase
when built with synth. The build-phase completes, but when synth
attempts to validate the package dependancies it fails:

The task is complete.  Final tally:
Initial queue size: 1
    packages built: 1
           ignored: 0
           skipped: 0
            failed: 0

Duration: 01:56:14
The build logs can be found at: /var/log/synth
Stand by, recursively scanning 1 port serially.
Scanning existing packages.
gcc-arm-embedded-6.3.20170628.txz failed dependency check.

In particular, the LIB_DEPENDS entry "libelf.so:devel/libelf" is
causing the confusion. On my 11-STABLE/amd64 host, this is included in
the base system (/usr/lib/libelf.so); but since it is listed in
LIB_DEPENDS, synth gets confused as to why the package dependancies
haven't been built. Is the libelf.so entry required for supported
FreeBSD systems?

Cheers.
-- 
Jonathan Chen <jonc at chen.org.nz>