Is HEAD broken?

[Andreas Klebinger]

Is HEAD broken?

I get this error with hadrian:

I suspect it's only broken on windows and has to do with MSYS #ifdefs

/-------------------------------------------------------------------------\
| Successfully built library 'ghci' (Stage0, way v).                      |
| Library: _build/stage0/libraries/ghci/build/libHSghci-8.9.0.20190714.a  |
| Library synopsis: The library supporting GHC's interactive interpreter. |
\-------------------------------------------------------------------------/
| Copy package 'ghci'
# cabal-copy (for _build/stage0/lib/package.conf.d/ghci-8.9.0.20190714.conf)
| Register package 'ghci'
# cabal-register (for
_build/stage0/lib/package.conf.d/ghci-8.9.0.20190714.conf)
| Run Ghc CompileHs Stage0:
libraries/text/Data/Text/Internal/Encoding/Fusion/Common.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Encoding/Fusion/Common.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Show.hs =>
_build/stage0/libraries/text/build/Data/Text/Show.o
# cabal-configure (for _build/stage0/compiler/setup-config)
| Run Ghc CompileHs Stage0:
libraries/text/Data/Text/Internal/Encoding/Fusion.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Encoding/Fusion.o
| Run Ghc CompileHs Stage0:
libraries/text/Data/Text/Internal/Lazy/Encoding/Fusion.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Lazy/Encoding/Fusion.o
# cabal-autogen (for _build/stage0/compiler/build/autogen/cabal_macros.h)
| Run GhcPkg Dependencies Stage0: process
WARNING: cache is out of date:
C:\ghc\msys64\opt\ghc\lib\package.conf.d\package.cache
ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix.
| Run GhcPkg Unregister Stage0: process => none
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Encoding.hs =>
_build/stage0/libraries/text/build/Data/Text/Encoding.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text.hs =>
_build/stage0/libraries/text/build/Data/Text.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Foreign.hs =>
_build/stage0/libraries/text/build/Data/Text/Foreign.o
ghc-pkg.exe: cannot find package process
| Run GhcPkg Copy Stage0: process =>
_build/stage0/lib/package.conf.d/process-1.6.5.0.conf
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Read.hs =>
_build/stage0/libraries/text/build/Data/Text/Read.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Internal/Lazy.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Lazy.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Internal/IO.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/IO.o
WARNING: cache is out of date:
C:\ghc\msys64\opt\ghc\lib\package.conf.d\package.cache
ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix.
| Run Cc FindCDependencies Stage0: compiler/parser/cutils.c =>
_build/stage0/compiler/build/c/parser/cutils.o.d
| Run Cc FindCDependencies Stage0: compiler/ghci/keepCAFsForGHCi.c =>
_build/stage0/compiler/build/c/ghci/keepCAFsForGHCi.o.d
| Run Cc FindCDependencies Stage0: compiler/cbits/genSym.c =>
_build/stage0/compiler/build/c/cbits/genSym.o.d
| Run DeriveConstants: none => _build/generated/DerivedConstants.h (and
1 more)
| Run DeriveConstants: none =>
_build/generated/GHCConstantsHaskellExports.hs (and 1 more)
| Run Happy: compiler/parser/Parser.y =>
_build/stage0/compiler/build/Parser.hs
| Run DeriveConstants: none =>
_build/generated/GHCConstantsHaskellWrappers.hs (and 1 more)
| Run Ghc CompileHs Stage0:
libraries/text/Data/Text/Internal/Lazy/Search.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Lazy/Search.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/Lazy/Internal.hs =>
_build/stage0/libraries/text/build/Data/Text/Lazy/Internal.o
| Run Ghc CompileHs Stage0:
libraries/text/Data/Text/Internal/Lazy/Fusion.hs =>
_build/stage0/libraries/text/build/Data/Text/Internal/Lazy/Fusion.o
| Run Ghc CompileHs Stage0: libraries/text/Data/Text/IO.hs =>
_build/stage0/libraries/text/build/Data/Text/IO.o
| Successfully generated _build/stage0/compiler/build/Config.hs.
| Run Alex: compiler/cmm/CmmLex.x => _build/stage0/compiler/build/CmmLex.hs
| Run HsCpp: compiler/prelude/primops.txt.pp =>
_build/stage0/compiler/build/primops.txt
In file included from includes/MachDeps.h:45:0,
                  from compiler/prelude/primops.txt.pp:122:
includes/ghcautoconf.h:1:0: error: unterminated #if
  #if !defined(__GHCAUTOCONF_H__)

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:90:5 in main:Rules
* Depends on: _build/stage0/lib/package.conf.d/ghc-8.9.0.20190714.conf
   at need, called at src\Rules\Register.hs:115:5 in main:Rules.Register
* Depends on: _build/stage0/compiler/build/libHSghc-8.9.0.20190714.a
   at need, called at src\Rules\Library.hs:144:5 in main:Rules.Library
* Depends on: _build/stage0/compiler/build/TcTypeable.o
   at &%>, called at src\Rules\Compile.hs:47:9 in main:Rules.Compile
* Depends on: _build/stage0/compiler/build/TcTypeable.o
_build/stage0/compiler/build/TcTypeable.hi
   at apply1, called at
src\Development\Shake\Internal\Rules\Oracle.hs:159:32 in
shake-0.18.3-2a90fc68b337e984af1d3900d8eeed6f2bc6fa1a:Development.Shake.Internal.Rules.Oracle
* Depends on: OracleQ (KeyValues
("_build/stage0/compiler/.dependencies","_build/stage0/compiler/build/TcTypeable.o"))
   at need, called at src\Hadrian\Oracles\TextFile.hs:96:9 in
main:Hadrian.Oracles.TextFile
* Depends on: _build/stage0/compiler/.dependencies
   at readFile', called at src\Rules\Dependencies.hs:34:19 in
main:Rules.Dependencies
   at need, called at src\Development\Shake\Internal\Derived.hs:118:15
in
shake-0.18.3-2a90fc68b337e984af1d3900d8eeed6f2bc6fa1a:Development.Shake.Internal.Derived
* Depends on: _build/stage0/compiler/.dependencies.mk
   at need, called at src\Rules\Dependencies.hs:26:9 in
main:Rules.Dependencies
* Depends on: _build/stage0/compiler/build/primop-fixity.hs-incl
   at need, called at src\Rules\Generate.hs:147:5 in main:Rules.Generate
* Depends on: _build/stage0/compiler/build/primops.txt
* Raised the exception:
user error (Development.Shake.cmd, system command failed
Command line: E:/ghc_head/inplace/mingw/bin/gcc.exe -E -undef
-traditional -P -Iincludes -I_build/generated
-I_build/stage0/compiler/build -x c compiler/prelude/primops.txt.pp
Exit code: 1
Stderr:
In file included from includes/MachDeps.h:45:0,
                  from compiler/prelude/primops.txt.pp:122:
includes/ghcautoconf.h:1:0: error: unterminated #if
  #if !defined(__GHCAUTOCONF_H__)