compiler crash under MacOS X

[Gregory Wright]

Hi Joerg,

This problem is almost certainly bug #751.

This gives a compiler crash if the threaded run time system
is used.  The latest darwinports ghc (which I maintain) builds
the run time without threads.  What is the output of

sudo port info ghc

?
If you do not have revision 2 of the 6.4.2 portfile, you need to
update:

sudo port selfupdate

If you are running the latest version, your experiences
are... interesting.

Best Wishes,
Greg


On Jul 17, 2006, at 5:36 AM, Joerg van den Hoff wrote:

> hi,
>
> my very first tries with ghc, using the 'program'
>
> module Fact where
> fact :: Integer -> Integer
> fact n = product [1..n]
>
>
> gave the following compiler crash under MacOS X 10.4.7 (ghc  
> installed from source via DarwinPorts):
>
> Compiling Fact             ( fact.hs, interpreted )
> ghc-6.4.2: internal error: scavenge_stack: weird activation record  
> found on stack: 463
>     Please report this as a compiler bug.  See:
>     http://www.haskell.org/ghc/reportabug
>
>
> more irritating, this error was _not_ reproducible. a  second try  
> did run through:
>
> `ghc -c fact.hs' yielded a file `fact.o'
>
> but `ghc -o fact fact.o' yielded:
>
> /usr/bin/ld: Undefined symbols:
> _ZCMain_main_closure
> ___stginit_ZCMain
> collect2: ld returned 1 exit status
>
>
> and `ghc -v --make fact' yielded
>
>
> Glasgow Haskell Compiler, Version 6.4.2, for Haskell 98, compiled  
> by GHC version 6.4.2
> Using package config file: /opt/local/lib/ghc-6.4.2/package.conf
> Using package config file: /Users/vdh/.ghc/powerpc-darwin-6.4.2/ 
> package.conf
> Hsc static flags: -static
> *** Chasing dependencies:
> Chasing modules from: fact
> Stable modules:
> *** Compiling Fact             ( fact.hs, fact.o ):
> compile: input file fact.hs
> *** Checking old interface for Fact:
> Skipping  Fact             ( fact.hs, fact.o )
> *** Deleting temp files
> Deleting: /tmp/ghc18926.s
> Warning: deleting non-existent /tmp/ghc18926.s
> Upsweep completely successful.
> *** Deleting temp files
> Deleting:
> link(batch): upsweep (partially) failed OR
>    Main.main not exported; not linking.
> *** Deleting temp files
> Deleting:
>
>
> what I got where two files `fact.o' and `fact.hi' (attached).
>
> hope this helps in one way or the other
>
>
> all the best
>
> joerg van den hoff
>
>
>
>
>
> <fact.o>
> module Fact where
> fact :: Integer -> Integer
> fact n = product [1..n]
> <fact.hi>
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