#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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Changes (by igloo):
* difficulty: => Unknown
* milestone: => 6.8.3
Comment:
Thanks for the report!
You are actually using `-Werror` in the generated `data/OrdAST.hs`. This
shouldn't cause compilation of FlowGraph to fail, but I suspect it is the
culprit nevertheless. You should be able to confirm that by removing the
-Werror and seeing if it fixes it.
Can you please make a tarball of just Haskell source files, so that we
only need to run a `ghc --make ...` command to reproduce the problem?
It would also make our lives a lot easier if you could remove dependencies
on non-boot-libraries, and make the example as small as possible. The
easiest way to do both of these is to replace function definitions with
`undefined` and then remove unused functions, checking that the problem
hasn't fixed itself as you go.
Thanks
Ian
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2169#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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