Building HEAD with HEAD fails

[Gabor Greif]

I did not use an inplace-stage2 but had a 'make install' before and
did a boot/reconfigure.

Not sure whether this detail is relevant.

How can I debug this problem? What does the error message say precisely?

Cheers,

    Gabor

On 10/22/15, Edward Z. Yang <ezyang at mit.edu> wrote:
> So... I can't reproduce this.  I validated a copy of GHC HEAD,
> and then used the inplace ghc-stage2 to build another using
> ./configure --with-ghc=... and it built fine.
>
> Maybe, do you have some more details?
>
> Edward
>
> Excerpts from Edward Z. Yang's message of 2015-10-21 11:44:26 -0700:
>> This is likely my fault, w.r.t. to the recent Cabal submodule update.
>> I'm a bit confused why there are things in the DB that don't have ABI
>> hashes though...
>>
>> Edward
>>
>> Excerpts from Gabor Greif's message of 2015-10-21 03:51:02 -0700:
>> > Hi devs,
>> >
>> > just a heads-up (pun intended...)
>> >
>> > (After updating to TOT, boot and configure with a freshly installed
>> > TOT ghc as bootstrap compiler. Then 'make clean'.)
>> >
>> > Running 'make' gives:
>> >
>> > ...
>> > Creating includes/ghcplatform.h...
>> > Done.
>> > "rm" -f utils/hsc2hs/dist/build/.depend.haskell.tmp
>> > "/home/ggreif/bin/ghc" -M -static  -H64m -O0 -fasm   -package-db
>> > libraries/bootstrapping.conf  -hide-all-packages -i -iutils/hsc2hs/.
>> > -iutils/hsc2hs/dist/build -iutils/hsc2hs/dist/build/autogen
>> > -Iutils/hsc2hs/dist/build -Iutils/hsc2hs/dist/build/autogen
>> > -optP-include -optPutils/hsc2hs/dist/build/autogen/cabal_macros.h
>> > -package-id base-4.8.2.0 -package-id containers-0.5.6.2 -package-id
>> > directory-1.2.2.0 -package-id filepath-1.4.0.0 -package-id
>> > process-1.2.3.0 -XHaskell2010  -no-user-package-db -rtsopts      -odir
>> > utils/hsc2hs/dist/build -hidir utils/hsc2hs/dist/build -stubdir
>> > utils/hsc2hs/dist/build -dep-makefile
>> > utils/hsc2hs/dist/build/.depend.haskell.tmp -dep-suffix ""
>> > -include-pkg-deps  utils/hsc2hs/./Main.hs  utils/hsc2hs/./C.hs
>> > utils/hsc2hs/./Common.hs  utils/hsc2hs/./CrossCodegen.hs
>> > utils/hsc2hs/./DirectCodegen.hs  utils/hsc2hs/./Flags.hs
>> > utils/hsc2hs/./HSCParser.hs  utils/hsc2hs/./UtilsCodegen.hs
>> > <command line>: package db: duplicate packages with incompatible ABIs:
>> >     binary-0.7.5.0 has ABIs: , c28f822c21e75eb270eca0870e42aaac
>> >     Cabal-1.23.0.0 has ABIs: , a0a6af8f1dd909f2ee719ddb2cd65779
>> >     hpc-0.6.0.2 has ABIs: , 3434375974d4bc6d14952a90ec97d0c4
>> >     ghc-boot-0.0.0.0 has ABIs: , f422fc19421064f81c42815f25a11e6e
>> >     hoopl-3.10.0.2 has ABIs: , 8968e2731ff8d529c37c048d65e94bf2
>> >     transformers-0.4.3.0 has ABIs: , 812457c97c58693d7f8a813b1ba19a33
>> >     template-haskell-2.11.0.0 has ABIs: ,
>> > 0ef51476100e9bdf96d1bf59696b98a1
>> >     terminfo-0.4.0.1 has ABIs: , aa24f544c0e3614d419e63fa170ac467
>> >
>> >
>> > The only solution I could come up for now is
>> >
>> > cd libraries
>> > ln -s /home/ggreif/lib/ghc-7.11.20151020/package.conf.d
>> > bootstrapping.conf
>> >
>> > then resuming 'make' leads to success.
>> >
>> > What could this be? Has somebody seen such an error?
>> >
>> > Cheers and thanks,
>> >
>> >     Gabor
>