build system loops with GhcLibWays = "v dyn" on Mac

Noticed it seemed to be looping on build so I ran this:

make -d |grep "Must remake"

it seems like it keeps building libffi.dylib.5...

Must remake target mk/are-validating.mk'. Must remake target libffi/libffi.dylib.5'.

Must remake target libffi/libffi.dylib.5.0.9'. Must remake target libffi/libHSffi-ghc6.11.20090913.dylib'.

Must remake target inplace/bin/hsc2hs'. Must remake target libraries/hpc/dist-boot/build/Trace/Hpc/Reflect.hs'.

Must remake target libraries/hpc/dist-boot/build/.depend-v'. Must remake target compiler/stage1/build/Fingerprint.hs'.

Must remake target utils/genprimopcode/dist/build/Lexer.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Version.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Package.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Utils.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/InstallDirs.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/PackageDescription.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Setup.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/PackageIndex.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/GHC/IPI641.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/GHC.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Register.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/PreProcess.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Build/PathsModule.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Hugs.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/LHC.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/JHC.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/PackageDescription/Check.hi'. Must remake target libraries/Cabal/dist-boot/build/Distribution/Simple/Configure.hi'.

Must remake target libraries/Cabal/dist-boot/build/Distribution/PackageDescription/Parse.hi'. Must remake target libraries/hpc/dist-boot/build/Trace/Hpc/Reflect.o'. Must remake target libraries/hpc/dist-boot/build/libHShpc-0.5.0.2.a'. Must remake target libraries/binary/dist-boot/build/Data/Binary.hi'.

Must remake target compiler/stage1/build/.depend-v'. Must remake target mk/are-validating.mk'.

Must remake target `libffi/libffi.dylib.5'.

Trac metadata

Trac field	Value
Version	6.10.4
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Build System
Test case
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