Forwarded to https://ghc.haskell.org/trac/ghc/ticket/10424 Index: ghc-8.10.1/compiler/iface/MkIface.hs =================================================================== --- ghc-8.10.1.orig/compiler/iface/MkIface.hs +++ ghc-8.10.1/compiler/iface/MkIface.hs @@ -679,7 +679,7 @@ iface_hash <- computeFingerprint putNameLiterally (mod_hash, ann_fn (mkVarOcc "module"), -- See mkIfaceAnnCache - mi_usages iface0, + usages, sorted_deps, mi_hpc iface0) @@ -714,6 +714,9 @@ (non_orph_rules, orph_rules) = mkOrphMap ifRuleOrph (mi_rules iface0) (non_orph_fis, orph_fis) = mkOrphMap ifFamInstOrph (mi_fam_insts iface0) ann_fn = mkIfaceAnnCache (mi_anns iface0) + -- Do not allow filenames to affect the interface + usages = [ case u of UsageFile _ fp -> UsageFile "" fp; _ -> u | u <- mi_usages iface0 ] + -- | Retrieve the orphan hashes 'mi_orphan_hash' for a list of modules -- (in particular, the orphan modules which are transitively imported by the