Cross compiling from Linux to Windows fails

Building from git HEAD (daed18c3) and configuring with:

./configure --target=i686-w64-mingw32

The build then fails with:

utils/hsc2hs/dist/build/Main.o: In function `c4tf_info':
(.text+0x80a): undefined reference to `GetModuleFileNameW'

but earlier on there was other suspicious output like:

utils/hsc2hs/Main.hs:234:1: Warning:
    the 'stdcall' calling convention is unsupported on this platform,
    treating as ccall
    When checking declaration:
      foreign import stdcall unsafe "static windows.h
        GetModuleFileNameW" c_GetModuleFileName
        :: Ptr () -> CWString -> Word32 -> IO Word32

which suggests that the cross tool chain is not being used. However, the configure process did indeed find the right cross compilers and linkers. From the configure output:

{{{

Building GHC version : 7.11.20150204

Git commit id : daed18c3

Build platform : x86_64-unknown-linux Host platform : x86_64-unknown-linux Target platform : i386-unknown-mingw32

Bootstrapping using : /usr/bin/ghc

which is version : 7.8.3

Using gcc : /usr/bin/i686-w64-mingw32-gcc

which is version : 4.9.2 Building a cross compiler : YES cpp : /usr/bin/i686-w64-mingw32-gcc cpp-flags : -E -undef -traditional ld : /usr/bin/i686-w64-mingw32-ld

Trac metadata

Trac field	Value
Version	7.10.1-rc2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed weight to 5

added Tbug Trac import labels

assigned to @trac-erikd

Duplicate of #9524 (closed) yes?

closed

Yes, closing this as a dupe of #9524 (closed).

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedDuplicate

changed milestone to %8.0.1

Milestone renamed

added ghc build failure label

added Pnormal label