#10066: Cross compiling from Linux to Windows fails -------------------------------------+------------------------------------- Reporter: erikd | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.10.1-rc2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Building GHC Unknown/Multiple | failed Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Building from git HEAD (daed18c35cda1) 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 : daed18c35cda114d8a5303bcb645195e1fd397e3 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 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10066 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler