#4203: ghc-6.12.3 fails to compile xmonad-0.9.1 tests
---------------------------------+------------------------------------------
Reporter: slyfox | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.3 | Keywords:
Os: Unknown/Multiple | Testcase: yet
Architecture: Unknown/Multiple | Failure: Compile-time crash
---------------------------------+------------------------------------------
Long story:
{{{
$ cabal unpack xmonad-0.9.1
$ cd xmonad-0.9.1
$ sed -i -e 's/Werror/Wall/g' xmonad.cabal # *shrug*
$ cabal configure -ftesting
$ cabal build
}}}
got:
{{{
[ 8 of 11] Compiling Properties ( tests/Properties.hs,
dist/build/xmonad/xmonad-tmp/Properties.o )
ghc: panic! (the 'impossible' happened)
(GHC version 6.12.3 for x86_64-unknown-linux):
bind_args
base:GHC.Real.D:Integral{d r3W}
[tpl_B2{v} [lid], tpl_B3{v} [lid], tpl_B4{v} [lid],
tpl_B5{v} [lid], tpl_B6{v} [lid], tpl_B7{v} [lid], tpl_B8{v} [lid],
tpl_B9{v} [lid], tpl_Ba{v} [lid]]
[TYPE ghc-prim:GHC.Types.Int{(w) tc 3J},
base:GHC.Real.$fOrdRatio_$dEq{v reC} [gid]
`cast` (ghc-prim:GHC.Prim.trans{(w) tc 34y}
<pred>base:GHC.Classes.Eq{tc 23}
(ghc-prim:GHC.Prim.sym{(w) tc 34v}
(main:Properties.NTCo:NonNegative{tc r36K}
(base:GHC.Real.Ratio{tc 31y}
integer-gmp:GHC.Integer.Type.Integer{tc
314})))
<pred>base:GHC.Classes.Eq{tc 23}
(main:Properties.NTCo:NonNegative{tc r36K}
ghc-prim:GHC.Types.Int{(w) tc 3J})
:: <pred><pred>base:GHC.Classes.Eq{tc 23}
(base:GHC.Real.Ratio{tc 31y}
integer-gmp:GHC.Integer.Type.Integer{tc
314})
~
<pred>base:GHC.Classes.Eq{tc 23}
ghc-prim:GHC.Types.Int{(w) tc 3J}),
...
}}}
(whole error message is in whole-failure.txt)
As there is many packages involved i have tried to shrink error to package
w/o external depends (instance_test.tar.gz). '''But''' it has simpler
error, so it can be another bug:
{{{
$ tests:./make_bad.sh
[1 of 3] Compiling Test_QuickCheck ( Test_QuickCheck.hs,
Test_QuickCheck.o )
[2 of 3] Compiling XMonad_StackSet ( XMonad_StackSet.hs,
XMonad_StackSet.o )
[3 of 3] Compiling Properties ( Properties.hs, Properties.o )
ghc: panic! (the 'impossible' happened)
(GHC version 6.12.3 for x86_64-unknown-linux):
expectJust chooseExternalIds: wild_B1
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
ghc-6.10.4 compiles even this stripped thing.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4203>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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