@@ -142,7 +142,7 @@ test-suite test
142142 type: exitcode-stdio-1.0
143143 main-is: Main.hs
144144 hs-source-dirs: test
145− ghc-options: -O0 -Wall
145+ ghc-options: -O0 -Wall -threaded -with-rtsopts=-N4
146146 if flag(dev)
147147 ghc-options: -Wmissed-specialisations
148148 -Wall-missed-specialisations
@@ -169,7 +169,7 @@ test-suite properties
169169 type: exitcode-stdio-1.0
170170 main-is: Prop.hs
171171 hs-source-dirs: test
172− ghc-options: -O0 -Wall
172+ ghc-options: -O0 -Wall -threaded -with-rtsopts=-N4
173173 if flag(dev)
174174 ghc-options: -Wmissed-specialisations
175175 -Wall-missed-specialisations