Merge pull request #17982 from mppf/follow-17979
fix quickstart builds
Following #17979 which added too much checking since
CHPL_MAKE_THIRD_PARTY_LINK_ARGS isn't always defined
to be something other than the empty string
(e.g. it was failing for quickstart config)
Reviewed by @ronawho - thanks!
[x] quickstart build works and make check succeeds on a mac