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Re: [64 bit] problem using Win32 API in native Cygwin64 library
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin-developers at cygwin dot com
- Date: Wed, 3 Apr 2013 16:11:32 +0200
- Subject: Re: [64 bit] problem using Win32 API in native Cygwin64 library
- References: <CAKw7uVgA__HaEWya9o93oV0u-YaYhRmSEUBbJOMgvifk5DLZZw at mail dot gmail dot com> <20130402111942 dot GC15384 at calimero dot vinschen dot de> <20130402153705 dot GE18060 at calimero dot vinschen dot de> <CAKw7uVgBKofxyyYJeFGWUpLD-FigNy_u1VBx06ayrS4U=-AoGA at mail dot gmail dot com> <20130403113625 dot GA10510 at calimero dot vinschen dot de> <20130403115906 dot GB31598 at calimero dot vinschen dot de> <CAKw7uViehJg8iRCoWPBu+s0pvZf9Y1bKSLmfk9_ZKWEi2URqKg at mail dot gmail dot com>
- Reply-to: cygwin-developers at cygwin dot com
On Apr 3 14:28, VÃclav Zeman wrote:
> On 3 April 2013 13:59, Corinna Vinschen wrote:
> > On Apr 3 13:36, Corinna Vinschen wrote:
> >> On Apr 3 13:25, VÃclav Zeman wrote:
> >> > On 2 April 2013 17:37, Corinna Vinschen wrote:
> >> > > I just uploaded a new w32api package which should fix this issue.
> >> > > The intrinsics are now provide by libkernel32.a. Please give it
> >> > > a try.
> >> > It is much better but I am still getting one failure:
> >> >
> >> > src/.libs/liblog4cplus_la-cygwin-win32.o: In function `VarCmp':
> >> > /usr/include/w32api/oleauto.h:487: undefined reference to `VarCmp'
> >> > /usr/include/w32api/oleauto.h:487:(.text+0x34f): relocation truncated
> >> > to fit: R_X86_64_PC32 against undefined symbol `VarCmp'
> >> > collect2: error: ld returned 1 exit status
> >> > Makefile:1110: recipe for target `liblog4cplus.la' failed
> >>
> >> Are you using C++? If so, can you try to use the other variant
> >> of VarCmp, with an extra, forth parameter, set to 0?
> I am using C++ but I am not using the VarCmp() function at all. I am
> only including the windows.h header.
>
> >
> > I just tried it myself and I can link against VarCmp just fine...
> > *If* I add a -loleaut32 to the linker stage.
> I think this is my fault. I am using '-fkeep-inline-functions' GCC
> flag for my debug builds. I have not tested but I believe it will work
> when I remove the option. I have solved it in the library by linking
> to oleaut32.lib.
Erm... oleaut32.lib? You didn't link against the Microsoft link lib,
did you? That should have been -loleaut32 or /usr/lib/w32api/liboleaut32.a
> It is odd that I have never experienced the same issue on 32 bit Cygwin.
Even when using the newer w32api headers from mingw-w64? Maybe there's
a difference in terms of gcc versions...
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
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