Help with unregisterised build

[Peter Tanski]

Hello Jeremy,

I don't know if anyone has gotten back to you on this yet.  I have  
not myself done an unregisterised build of GHC before, but I thought  
you should at least hear something.  The people who know about this  
all seem to be at the ICFP programme that has been going on since  
Thursday; they should be back next week.  In the meantime, some work  
has been done recently on the way GHC puts out assembler--not quite  
the same problem as a multiply-defined-symbol error--but you might  
consider grabbing darcs and trying to build from the HEAD branch.   
See <http://hackage.haskell.org/trac/ghc/wiki/Building/ 
GettingTheSources>.

-Pete

Jeremy Wazny wrote:

> I've attempted to build an installation of GHC which uses
> unregisterised libraries, but have not had much success. I am new to
> GHC's build system and would be grateful for some advice.
>
> I'm trying to build the 6.4.2 source distribution on an x86 linux
> machine, using GHC 6.4.2 (the "Generic Linux with glibc2.3" version on
> the download page.) The target is the same machine.
>
> I've created a mk/build.mk file containing just the line:
>
> GhcUnregisterised = YES
>
> which, according to the comment in mk/config.mk, ought to build the
> unregisterised libraries that I'm after (and use them by default.)
>
> I run configure as follows:
>
> ./configure --prefix="$HOME"/ghc_u
>
> and then simply "make".
>
> After some time, the build fails with the following:
>
> ../../ghc/compiler/ghc-inplace -H16m -O -fglasgow-exts -cpp -Iinclude
> -"#include" HsBase.h -funbox-strict-fields -ignore-package base -O
> Rghc-timing -fgenerics  -fgenerics -split-objs    -c GHC/Base.lhs -o
> GHC/Base.o  -ohi GHC/Base.hi
> /tmp/ghc4237.s: Assembler messages:
> /tmp/ghc4237.s:17: Error: symbol `__stg_split_marker' is already
> defined
> /tmp/ghc4237.s:29: Error: symbol `__stg_split_marker' is already
> defined
> /tmp/ghc4237.s:41: Error: symbol `__stg_split_marker' is already
> defined
> /tmp/ghc4237.s:53: Error: symbol `__stg_split_marker' is already
> defined
>
> .... This goes on for a while ...
>

> <<ghc: 124912780 bytes, 12 GCs, 808164/1513632 avg/max bytes residency
> (2 samples), 19M in use, 0.00 INIT (0.00 elapsed), 0.59 MUT (2.39
> elapsed), 0.10 GC (0.09 elapsed) :ghc>>
> make[2]: *** [GHC/Base.o] Error 1
> make[1]: *** [all] Error 1
> make[1]: Leaving directory
> `/mnt/raid/home/jeremyrw/src/src/ghc-6.4.2/libraries'
> make: *** [build] Error 1
>
>
> I've also tried with the following build.mk
> (I was guessing the -fvia-C might avoid the above assembler problem.):
>
> GhcUnregisterised = YES
> GhcLibHcOpts = -O -fvia-C
>
> but it fails in the same way.
>
> I'm not sure what to do at this point.
> Am I missing something in the build.mk?
>
> Is there likely to be anything else that needs to be tweaked?
>
> Has anybody had any success with this sort of thing before?

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