[llvm-dev] Compilation error with MinGW

[Anton Korobeynikov via llvm-dev]

Can we somehow distinguish between mingw and mingw-w64 at configure
time and error properly?

On Sun, Aug 30, 2015 at 9:25 PM, Yaron Keren via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> This is an outdated version, please download mingw-w64 from
> https://sourceforge.net/projects/mingw-w64/
>
> 2015-08-30 20:57 GMT+03:00 Slycelote <slycelot at yandex.ru>:
>>
>> I use the one from mingw.org, installed by the recommended way with
>> mingw-get-setup.exe.
>>
>> Sly.
>>
>> On 30.08.2015 06:10, Yaron Keren wrote:
>> > Which mingw distribution exactly do you use?
>> >
>> > 2015-08-30 0:46 GMT+03:00 Slycelote via llvm-dev
>> > <llvm-dev at lists.llvm.org>:
>> >
>> >> Hi all,
>> >>
>> >> I'm hitting the same problem as in this[1] thread. I use release_37
>> >> branch on 64-bit Windows 7.
>> >> The problem is here:
>> >>
>> >> #ifdef __MINGW32__
>> >>  #include <imagehlp.h>
>> >> #else
>> >>  #include <dbghelp.h>
>> >> #endif
>> >>
>> >> <skip>
>> >>
>> >> typedef BOOL (WINAPI
>> >>
>> >> *fpEnumerateLoadedModules)(HANDLE,PENUMLOADED_MODULES_CALLBACK64,PVOID);
>> >>
>> >> imagehlp.h doesn't define PENUMLOADED_MODULES_CALLBACK64 type.
>> >> I fixed it on my side by the patch in the bottom of this email, but I
>> >> don't know if it's the right approach in general.
>> >>
>> >> [1] http://comments.gmane.org/gmane.comp.compilers.clang.user/709
>> >>
>> >> -- Sly.
>> >>
>> >>
>> >> diff --git a/lib/Support/Windows/DynamicLibrary.inc
>> >> b/lib/Support/Windows/DynamicLibrary.inc
>> >> index d38f197..b4c8f1b 100644
>> >> --- a/lib/Support/Windows/DynamicLibrary.inc
>> >> +++ b/lib/Support/Windows/DynamicLibrary.inc
>> >> @@ -31,7 +31,16 @@ using namespace sys;
>> >>  //===          and must not be UNIX code.
>> >>
>> >>
>> >> //===----------------------------------------------------------------------===//
>> >>
>> >> +#if defined(__MINGW32__) and !defined(_WIN64)
>> >> +typedef BOOL (WINAPI
>> >> *fpEnumerateLoadedModules)(HANDLE,PENUMLOADED_MODULES_CALLBACK,PVOID);
>> >> +static const char* sEnumerateLoadedModules = "EnumerateLoadedModules";
>> >> +typedef DWORD ModuleOffset;
>> >> +#else
>> >>  typedef BOOL (WINAPI
>> >>
>> >> *fpEnumerateLoadedModules)(HANDLE,PENUMLOADED_MODULES_CALLBACK64,PVOID);
>> >> +static const char* sEnumerateLoadedModules =
>> >> "EnumerateLoadedModules64";
>> >> +typedef DWORD64 ModuleOffset;
>> >> +#endif
>> >> +
>> >>  static fpEnumerateLoadedModules fEnumerateLoadedModules;
>> >>  static DenseSet<HMODULE> *OpenedHandles;
>> >>
>> >> @@ -39,13 +48,13 @@ static bool loadDebugHelp(void) {
>> >>    HMODULE hLib = ::LoadLibraryW(L"Dbghelp.dll");
>> >>    if (hLib) {
>> >>      fEnumerateLoadedModules = (fpEnumerateLoadedModules)
>> >> -      ::GetProcAddress(hLib, "EnumerateLoadedModules64");
>> >> +      ::GetProcAddress(hLib, sEnumerateLoadedModules);
>> >>    }
>> >>    return fEnumerateLoadedModules != 0;
>> >>  }
>> >>
>> >>  static BOOL CALLBACK
>> >> -ELM_Callback(WIN32_ELMCB_PCSTR ModuleName, DWORD64 ModuleBase,
>> >> +ELM_Callback(WIN32_ELMCB_PCSTR ModuleName, ModuleOffset ModuleBase,
>> >>               ULONG ModuleSize, PVOID UserContext) {
>> >>    OpenedHandles->insert((HMODULE)ModuleBase);
>> >>    return TRUE;
>> >>
>> >> _______________________________________________
>> >> LLVM Developers mailing list
>> >> llvm-dev at lists.llvm.org
>> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>> >>
>>
>
>
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-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University