check flags:    
building check-recursive
Making check in lib
make[1]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/lib'
make[1]: Nothing to be done for `check'.
make[1]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/lib'
Making check in utils
make[1]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils'
building check-recursive
Making check in lower-rstore
make[2]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lower-rstore'
building check-am
make  check-TESTS
make[3]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lower-rstore'
building check-TESTS
make[3]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lower-rstore'
make[2]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lower-rstore'
Making check in lift-rstore
make[2]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lift-rstore'
building check-am
make  check-TESTS
make[3]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lift-rstore'
building check-TESTS
make[3]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lift-rstore'
make[2]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils/lift-rstore'
make[2]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils'
make[2]: Nothing to be done for `check-am'.
make[2]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils'
make[1]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1/utils'
make[1]: Entering directory `/private/tmp/nix-4328-0/relation-stores-0.1.1'
make[1]: Nothing to be done for `check-am'.
make[1]: Leaving directory `/private/tmp/nix-4328-0/relation-stores-0.1.1'