#2169: Compilation fails first time without giving an error, later succeeds
without changing code
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Reporter: nccb | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.8.3
Component: Compiler | Version: 6.8.2
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86_64 (amd64)
Os: Linux |
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Comment (by nccb):
Sorry about that - I had forgotten about the auto-generated modules having
custom errors. I think you have spotted it; FlowGraph is compiled
directly after OrdAST, and it seems that sometimes the per-module settings
from OrdAST have "bled through" into FlowGraph (we are using -fwarn-
unused-matches in OrdAST, sorry for not noticing that in the original
report). What seems especially odd is that FlowGraph can fail a second
time, when OrdAST has already been compiled (some problem with temporary
files?). I'll try and trim it down into a neater testcase.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2169#comment:3>
GHC <http://www.haskell.org/ghc/>
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