build

Merge pull request #2043 from peternewman/nortle-ftdi #638

Job	Run time
coverage-debian-stable-amd64-gcc	20m 46s
distcheck-debian-stable-amd64-gcc	18m 21s
distcheck-debian-stable-amd64-clang	2m 38s
Verify trees for distcheck-debian-stable-amd64-clang	21s
Verify trees for distcheck-debian-stable-amd64-gcc	17s
	42m 23s

Provide feedback