Unable to build a profiled version of GHC Head

[Roland Senn]

Hi, 

I'm unable to build a profiled version of GHC Head. I did:

  git clone --recursive https://gitlab.haskell.org/ghc/ghc ghcprof
  cd ghcprof
  git remote set-url --add origin https://gitlab.haskell.org/RolandSenn/ghc
  git remote set-url --delete origin https://gitlab.haskell.org/ghc/ghc
  git remote add upstream https://gitlab.haskell.org/ghc/ghc
  git fetch upstream
  git push origin master
  hadrian/build.sh -c --flavour=prof -j2

I get the follwoing failure:

  ...
  | Run Ghc CompileCWithGhc Stage1: utils/hp2ps/Utilities.c => _build/stage1/utils/hp2ps/build/c/Utilities.dyn_o
  | Run Cc FindCDependencies Stage1: libraries/ghc-prim/cbits/atomic.c => _build/stage1/libraries/ghc-prim/build/c/cbits/atomic.p_o.d
  | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/atomic.c => _build/stage1/libraries/ghc-prim/build/c/cbits/atomic.p_o
  | Run HsCpp: compiler/prelude/primops.txt.pp => _build/stage1/compiler/build/primops.txt
  | Run GenPrimopCode: _build/stage1/compiler/build/primops.txt => _build/stage1/libraries/ghc-prim/build/GHC/Prim.hs
  libraries/ghc-prim/cbits/atomic.c: In function ‘hs_atomic_nand8’:

  libraries/ghc-prim/cbits/atomic.c:181:10: error:
       note: ‘__sync_fetch_and_nand’ changed semantics in GCC 4.4
         return __sync_fetch_and_nand((volatile StgWord8 *) x, (StgWord8) val);
                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |
  181 |   return __sync_fetch_and_nand((volatile StgWord8 *) x, (StgWord8) val);
      |          ^
  | Run Cc FindCDependencies Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.dyn_o.d
  | Run Cc FindCDependencies Stage1: utils/hp2ps/Main.c => _build/stage1/utils/hp2ps/build/c/Main.dyn_o.d
  | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.dyn_o
  | Run GenPrimopCode: _build/stage1/compiler/build/primops.txt => _build/stage1/libraries/ghc-prim/build/GHC/PrimopWrappers.hs
  | Run Ghc FindHsDependencies Stage1: libraries/ghc-prim/GHC/CString.hs (and 7 more) => _build/stage1/libraries/ghc-prim/.dependencies.mk
  | Run Ghc CompileCWithGhc Stage1: libraries/ghc-prim/cbits/pext.c => _build/stage1/libraries/ghc-prim/build/c/cbits/pext.p_o
  | Remove file _build/stage1/libraries/ghc-prim/.dependencies.mk.bak
  Error when running Shake build system:
    at action, called at src/Rules.hs:68:19 in main:Rules
    at need, called at src/Rules.hs:85:5 in main:Rules
  * Depends on: _build/stage1/bin/ghc
    at need, called at src/Utilities.hs:71:18 in main:Utilities
  * Depends on: _build/stage1/libraries/ghc-prim/build/libHSghc-prim-0.6.1_p-ghc8.9.20190408.so
    at need, called at src/Rules/Library.hs:121:5 in main:Rules.Library
  * Depends on: _build/stage1/libraries/ghc-prim/build/GHC/IntWord64.p_dyn_o
    at error, called at src/Hadrian/Oracles/TextFile.hs:65:20 in main:Hadrian.Oracles.TextFile
  * Raised the exception:
  No dependencies found for file '_build/stage1/libraries/ghc-prim/build/GHC/IntWord64.p_dyn_o'

I'm using Debian 9; x64_86;  GHC 8.6.3; gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516  
Any ideas what's wrong?

Many thanks and kind regards
   Roland
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