I can do both 32 and 64-bit builds.I started with 32 bits.

I got
"inplace/bin/ghc-stage2.exe" -hisuf hi -osuf  o -hcsuf hc -static  -H64m -O0 -fasm    -package-name vector            -0.10.9.1 -hide-all-packages -i -ilibraries/vector/. -ilibraries/vector/dist-install/build -ilibraries/vec            tor/dist-install/build/autogen -Ilibraries/vector/dist-install/build -Ilibraries/vector/dist-install/build            /autogen -Ilibraries/vector/include -Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-includ            e -optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package base-4.7.1.0 -package deepseq-1            .3.0.2 -package ghc-prim-0.3.1.0 -package primitive-0.5.2.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O             -fasm  -no-user-package-db -rtsopts      -odir libraries/vector/dist-install/build -hidir libraries/vector            /dist-install/build -stubdir libraries/vector/dist-install/build   -c libraries/vector/./Data/Vector/Fusio            n/Stream/Monadic.hs -o libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
"/usr/bin/ar" q  libraries/primitive/dist-install/build/libHSprimitive-0.5.2.1.a @libraries/primitive/dist            -install/build/libHSprimitive-0.5.2.1.a.contents
/usr/bin/ar: creating libraries/primitive/dist-install/build/libHSprimitive-0.5.2.1.a
"rm" -f libraries/primitive/dist-install/build/libHSprimitive-0.5.2.1.a.contents
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp2 ... linking ... ghc-stage2.exe: unable to load package `integer-gmp2'
ghc-stage2.exe: D:\Niklas\scratch\ghc-build\msys\home\niklas\ghc\libraries\integer-gmp2\dist-install\build            \HSinteger-gmp2-0.0.1.0.o: unknown symbol `_scalbn'

I built it´with gmp-6.0.0.



2014-07-22 14:02 GMT+02:00 Herbert Valerio Riedel <hvr@gnu.org>:
On 2014-07-22 at 13:33:04 +0200, Niklas Larsson wrote:
> I can test on Windows.

great! Are you using the 32bit or 64bit compiler?

All you'd need to do is 'git checkout' the wip/T9281 branch, add the line

  INTEGER_LIBRARY=integer-gmp2

at the end of mk/build.mk (and 'BuildFlavour=quick' should suffice) and
try to build GHC with that. If you end up with a working stage2
compiler, and 'inplace/bin/ghc-stage2 --interactive' reports loading the
package 'integer-gmp2' then everything went better than expected :)

Then running the testsuite via

  cd testsuite/ && make WAY=normal SKIP_PERF_TESTS=YES

should only fail with a few testcases due to the strings "integer-gmp2"
vs. "integer-gmp" being different in the output.

Thanks,,
  hvr