HEAD fails to bootstrap with HEAD?

[Edward Z. Yang]

Hello Karel,

When this commit makes it in
https://github.com/haskell/cabal/commit/8d59dc9fba584a9fdb810f4d84f7f3ccb089dd08
it will work; but updating Cabal to HEAD is blocking on
https://ghc.haskell.org/trac/ghc/ticket/9583

Cheers,
Edward

Excerpts from Karel Gardas's message of 2014-09-08 03:21:40 -0400:
> Hello,
> 
> I've noticed that probably after cabal/ghc-pkg changes done recently 
> HEAD fails to build with HEAD in following way:
> 
> [80 of 80] Compiling Main             ( utils/ghc-cabal/Main.hs, 
> bootstrapping/Main.o )
> Linking utils/ghc-cabal/dist/build/tmp/ghc-cabal ...
> "touch" utils/ghc-cabal/dist/build/tmp/ghc-cabal
> "cp" utils/ghc-cabal/dist/build/tmp/ghc-cabal inplace/bin/ghc-cabal
> "inplace/bin/mkdirhier" compiler/stage1/build//.
> "rm" -f compiler/stage1/build/Config.hs
> Creating compiler/stage1/build/Config.hs ...
> done.
> "inplace/bin/ghc-cabal" configure libraries/Cabal/Cabal dist-boot "" 
> --with-ghc="/opt/ghc-7.9.20140906-amd64/bin/ghc" 
> --with-ghc-pkg="/opt/ghc-7.9.20140906-amd64/bin/ghc-pkg" 
> --package-db=/export/home/karel/vcs/ghc-src/head/libraries/bootstrapping.conf 
> --disable-library-for-ghci --enable-library-vanilla 
> --disable-library-profiling --disable-shared 
> --with-hscolour="/export/home/karel/.cabal/bin/HsColour" 
> --configure-option=CFLAGS=" -m64 -fno-stack-protector   " 
> --configure-option=LDFLAGS=" -m64  " --configure-option=CPPFLAGS=" -m64 
>   " --gcc-options=" -m64 -fno-stack-protector     -m64  " 
> --configure-option=--with-gmp-includes="/usr/include/gmp" 
> --configure-option=--with-gmp-libraries="/usr/lib/"   --constraint 
> "Cabal == 1.21.1.0"   --constraint "hpc == 0.6.0.1"   --constraint 
> "binary == 0.7.1.0"   --constraint "bin-package-db == 0.0.0.0" 
> --constraint "hoopl == 3.10.0.1"   --constraint "transformers == 
> 0.4.1.0"   --constraint "terminfo == 0.4.0.0" --with-gcc="/usr/bin/gcc" 
> --configure-option=--with-cc="/usr/bin/gcc" --with-ar="/usr/xpg4/bin/ar" 
> --with-alex="/export/home/karel/.cabal/bin/alex" 
> --with-happy="/export/home/karel/.cabal/bin/happy"
> Configuring Cabal-1.21.1.0...
> ghc-cabal: '/opt/ghc-7.9.20140906-amd64/bin/ghc-pkg' exited with an error:
> ghc-pkg: ghc no longer supports single-file style package databases
> (/export/home/karel/vcs/ghc-src/head/libraries/bootstrapping.conf) use
> 'ghc-pkg init' to create the database with the correct format.
> gmake[1]: *** [libraries/Cabal/Cabal/dist-boot/package-data.mk] Error 1
> gmake: *** [all] Error 2
> 
> 
> I've been able to solve this by:
> 
> $ rm libraries/bootstrapping.conf
> $ /opt/ghc-7.9.20140906-amd64/bin/ghc-pkg init libraries/bootstrapping.conf
> 
> however it's kind of impractical to do that on buildbot (solaris/amd64). 
> Is it possible to fix that somehow?
> 
> Thanks!
> Karel