Hi, I got an build error on Mac today: make -r --no-print-directory -f ghc.mk phase=final all "inplace/bin/ghc-stage1" -o utils/dll-split/dist-install/build/tmp/dll-split -hisuf dyn_hi -osuf dyn_o -hcsuf dyn_hc -fPIC -dynamic -H32m -O -hide-all-packages -i -iutils/dll-split/. -iutils/dll-split/dist-install/build -iutils/dll-split/dist-install/build/autogen -Iutils/dll-split/dist-install/build -Iutils/dll-split/dist-install/build/autogen -optP-include -optPutils/dll-split/dist-install/build/autogen/cabal_macros.h -package base-4.7.0.0 -package containers-0.5.0.0 -package filepath-1.3.0.2 -XHaskell98 -no-user-package-db -rtsopts -odir utils/dll-split/dist-install/build -hidir utils/dll-split/dist-install/build -stubdir utils/dll-split/dist-install/build -optl-Wl,-headerpad_max_install_names utils/dll-split/dist-install/build/Main.dyn_o ld: unknown option: --undefined=_ghczmprim_GHCziTypes_Izh_static_info collect2: ld returned 1 exit status make[1]: *** [utils/dll-split/dist-install/build/tmp/dll-split] Error 1 make: *** [all] Error 2 --Kazu