#4106: undefined reference to `__stg_EAGER_BLACKHOLE_INFO'
------------------------+---------------------------------------------------
Reporter: Mikolaj | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.1 | Keywords:
Os: Linux | Testcase:
Architecture: powerpc | Failure: Other
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That's probably powerpc (Linux) specific (I know, I know), but perhaps
somebody has an easy fix... I guess it's a problem with GHC (6.12.1,
recompiled from source, to be sure), not the 'parallel' library.
The bug is a failing test suite for
http://hackage.haskell.org/package/parallel, versions from 1.1.0.1 to at
least 2.2.0.1. Version 1.1.0.0 works fine and the culprit is the following
clause in parallel.cabal:
{{{
if impl(ghc >= 6.11) {
-- To improve parallel performance:
ghc-options: -feager-blackholing
}
}}}
Some relevant lines from the test output:
{{{
=====> conc057(threaded2)
cd . && '/home/mikolaj/Desktop/ghc6-6.12.1/inplace/bin/ghc-stage2'
-fforce-recomp -dcore-lint -dcmm-lint -no-user-package-conf -dno-debug-
output -o conc057 conc057.hs -O -threaded -eventlog -O0 -package parallel
>conc057.comp.stderr 2>&1
Compile failed (status 256) errors were:
/usr/local/lib/parallel-2.2.0.1/ghc-6.12.1/libHSparallel-2.2.0.1.a(Strategies.o):
In function `sXK_info':
(.text+0x56): undefined reference to `__stg_EAGER_BLACKHOLE_INFO'
/usr/local/lib/parallel-2.2.0.1/ghc-6.12.1/libHSparallel-2.2.0.1.a(Strategies.o):
In function `sXK_info':
(.text+0x5a): undefined reference to `__stg_EAGER_BLACKHOLE_INFO'
}}}
I attach the full test output from version 2.2.0.1 of parallel and a
similar compilation failure, when using parallel 1.1.0.1 in vty in
LambdaHack.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4106>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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