+ is_stable_obj = this_mod_name `elem` stable_obj
+ is_stable_bco = this_mod_name `elem` stable_bco
+
+ old_hmi = lookupUFM old_hpt this_mod_name
+
+ -- We're using the dflags for this module now, obtained by
+ -- applying any options in its LANGUAGE & OPTIONS_GHC pragmas.
+ dflags = ms_hspp_opts summary
+ prevailing_target = hscTarget (hsc_dflags hsc_env)
+ local_target = hscTarget dflags
+
+ -- If OPTIONS_GHC contains -fasm or -fvia-C, be careful that
+ -- we don't do anything dodgy: these should only work to change
+ -- from -fvia-C to -fasm and vice-versa, otherwise we could
+ -- end up trying to link object code to byte code.
+ target = if prevailing_target /= local_target
+ && (not (isObjectTarget prevailing_target)
+ || not (isObjectTarget local_target))
+ then prevailing_target
+ else local_target
+
+ -- store the corrected hscTarget into the summary
+ summary' = summary{ ms_hspp_opts = dflags { hscTarget = target } }
+
+ -- The old interface is ok if
+ -- a) we're compiling a source file, and the old HPT
+ -- entry is for a source file
+ -- b) we're compiling a hs-boot file
+ -- Case (b) allows an hs-boot file to get the interface of its
+ -- real source file on the second iteration of the compilation
+ -- manager, but that does no harm. Otherwise the hs-boot file
+ -- will always be recompiled
+
+ mb_old_iface
+ = case old_hmi of
+ Nothing -> Nothing
+ Just hm_info | isBootSummary summary -> Just iface
+ | not (mi_boot iface) -> Just iface
+ | otherwise -> Nothing
+ where
+ iface = hm_iface hm_info
+