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authorsimonmar <unknown>2001-05-31 11:25:51 +0000
committersimonmar <unknown>2001-05-31 11:25:51 +0000
commit0f53b896cbda2c2030e93f3afd07f0aa553487e0 (patch)
treeddb238f4776e5b630a34bd86e25a83f35d91dc70 /ghc/compiler/rename/Rename.lhs
parent85f83fc1f0c1a7d6c543fe001ba89548efec2380 (diff)
downloadhaskell-0f53b896cbda2c2030e93f3afd07f0aa553487e0.tar.gz
[project @ 2001-05-31 11:25:51 by simonmar]
If we can't read the old interface file for some reason (eg. it isn't there, or it has the wrong version), then output the error if -ddump-hi-diffs is on. It used to be part of -ddump-rn-trace, but -ddump-hi-diffs seems more logical, since it covers all the other information about why a module is being recompiled.
Diffstat (limited to 'ghc/compiler/rename/Rename.lhs')
-rw-r--r--ghc/compiler/rename/Rename.lhs4
1 files changed, 3 insertions, 1 deletions
diff --git a/ghc/compiler/rename/Rename.lhs b/ghc/compiler/rename/Rename.lhs
index de1e0be278..b8fce2eb20 100644
--- a/ghc/compiler/rename/Rename.lhs
+++ b/ghc/compiler/rename/Rename.lhs
@@ -413,7 +413,9 @@ checkOldIface ghci_mode dflags hit hst pcs iface_path source_unchanged maybe_ifa
-> readIface iface_path `thenRn` \ read_result ->
case read_result of
Left err -> -- Old interface file not found, or garbled; give up
- traceRn (text "Bad old interface file" $$ nest 4 err) `thenRn_`
+ traceHiDiffsRn (
+ text "Cannot read old interface file:"
+ $$ nest 4 err) `thenRn_`
returnRn (outOfDate, Nothing)
Right parsed_iface