mismatched interface file ways

[Dustin DeWeese]

I'm working on a registerised port of GHC 6.8.2 to an ARM CPU.  After making the changes needed (listed in the 'Porting GHC' wiki page), I am trying to compile GHC.

The build fails while compiling the stage 2 compiler with this error message:

basicTypes/OccName.lhs-boot:1:0:
    Bad interface file: /home/dusty/deb-src2/ghc6-6.8.2/libraries/base/dist/build/Prelude.hi
        mismatched interface file ways: expected , found u

I am pretty sure that Prelude is registerised because ghc-asm prints out some diagnostics while compiling it.

Does anyone know what's going on or how I can fix it?  How can I check a .hi file to see if it is unregisterised?

Thanks,
Dusty

Here is my build.mk:
XMLDocWays := html
HADDOCK_DOCS := YES
GhcRTSWays += debug_p thr_debug thr_debug_p
XSLTPROC_OPTS += --nonet
GhcUnregisterised=NO
GhcWithNativeCodeGen=NO
GhcWithInterpreter=NO
SplitObjs=NO
GhcRTSWays := $(shell echo $(GhcRTSWays) | sed "s/\<[a-z_]*thr[a-z_]*\>//g")
GhcNotThreaded=YES
bindir  := ${libdir}/bin
docdir  := $(datarootdir)/doc/ghc6-doc
htmldir := $(docdir)
dvidir  := $(docdir)
pdfdir  := $(docdir)
psdir   := $(docdir)
SRC_HC_OPTS += -optc-mcpu=arm1136j-s -optc-mfpu=vfp -optc-mfloat-abi=softfp -opta-mcpu=arm1136j-s -opta-mfpu=vfp -opta-mfloat-abi=softfp

Here's the output from the build:
../compiler/stage1/ghc-inplace -H16m -O -optc-mcpu=arm1136j-s -optc-mfpu=vfp -optc-mfloat-abi=softfp -opta-mcpu=arm1136j-s -opta-mfpu=vfp -opta-mfloat-abi=softfp  -istage2/utils  -istage2/basicTypes  -istage2/types  -istage2/hsSyn  -istage2/prelude  -istage2/rename  -istage2/typecheck  -istage2/deSugar  -istage2/coreSyn  -istage2/vectorise  -istage2/specialise  -istage2/simplCore  -istage2/stranal -istage2/stgSyn  -istage2/simplStg  -istage2/codeGen  -istage2/main  -istage2/profiling  -istage2/parser  -istage2/cprAnalysis  -istage2/ndpFlatten  -istage2/iface  -istage2/cmm -Wall -fno-warn-name-shadowing -fno-warn-orphans -Istage2 -DOMIT_NATIVE_CODEGEN -package hpc -package bytestring -cpp -fglasgow-exts -fno-generics -Rghc-timing -I. -Iparser -package unix -package Cabal -ignore-package lang -recomp -Rghc-timing  -H16M '-#include "cutils.h"' -package-name  ghc-6.8.2   -fgenerics    -c basicTypes/OccName.lhs-boot -o stage2/basicTypes/OccName.o-boot  -ohi stage2/basicTypes/OccName.hi-boot

basicTypes/OccName.lhs-boot:1:0:
    Bad interface file: /home/dusty/deb-src2/ghc6-6.8.2/libraries/base/dist/build/Prelude.hi
        mismatched interface file ways: expected , found u
<<ghc: 15848512 bytes, 4 GCs, 131072/131072 avg/max bytes residency (1 samples), 16M in use, 0.02 INIT (0.00 elapsed), 0.61 MUT (0.67 elapsed), 0.07 GC (0.08 elapsed) :ghc>>
make[2]: *** [stage2/basicTypes/OccName.o-boot] Error 1
make[2]: Leaving directory `/home/dusty/deb-src2/ghc6-6.8.2/compiler'
make[1]: *** [stage2] Error 2
make[1]: Leaving directory `/home/dusty/deb-src2/ghc6-6.8.2'
make: *** [bootstrap2] Error 2