While investigating the residual problem with #7814, I discovered that there is some excessive inlining going on in libraries/time/Data/Time/Format.hs: wc -l libraries/time/Data/Time/Format.hs libraries/time/dist-install/build/Data/Time/Format.cmm 247 libraries/time/Data/Time/Format.hs 103342 libraries/time/dist-install/build/Data/Time/Format.cmm Format.cmm is created by -ddump-cmm-raw with the STAGE1 GHC HEAD. I am compiling for ELF/PPC, but that should be an irrelevant detail. Can somebody confirm this? Thanks and cheers, Gabor