[XviD-devel] Linked errors cross-compiling for x64 Windows on x64 Linux

Michael Militzer michael at xvid.org
Wed Feb 16 11:07:53 CET 2011


Hi,

what are the symbols that are unresolved in your libxvidcore.a? Please
send the exact error messages.

Regards,
Michael


Quoting Leo Izen <leo.izen at gmail.com>:

> I'm getting linker errors cross-compiling xvidcore. My build is   
> x86_64-unknown-linux-gnu and my host is x86_64-w64-mingw32 using a   
> recent (4.6.0) Mingw-w64 gcc for linux. I grabbed the latest cvs,   
> cd'd to xvidcore/build/generic/ and ran
>
> ./bootstrap.sh
> ./configure --host=x86_64-w64-mingw32 --prefix=/usr/local/x86_64-w64-mingw32
>
> I had to manually patch the platform.inc to remove the -mno-cygwin   
> compiler and linker flags. I also edited the $STATIC_LIBRARY to   
> include lib before the name. My CPPFLAGS variable points to the   
> headers I've already installed and my CFLAGS is -w (no warnings). I   
> can compile all the files to object no problem with make. The issue   
> becomes linking. Building the static library wasn't an issue because  
>  all it does is ar and ranlib. But building the dynamic library  
> spits  out all kinds of undefined reference errors. However, I nm'd  
> the  static library after the error but before make clean and piped  
> it  into grep and the symbols WERE in the library. My LDFLAGS are   
> "-static -L/usr/local/x86_64-w64-mingw32/lib". That directory   
> contains other libraries such as libpthread.a that I built with the   
> cross-compiler toolchain. That directory is also in LD_LIBRARY_PATH   
> to be extra sure.
>
> The type of linker errors I'm getting persist even without the   
> shared lib. i.e. I edited the Makefile (I know I shouldn't do that)   
> to remove the target $(SHARED_LIB) from make all and make install. I  
>  then built the static lib and ran make install. Now, however, when  
> I  try to compile a simple front-end with -lxvidcore, I get the same  
>  undefined reference errors even though nm says they're there.  
> What's  even weirder is that the error says: libxvidcore.a:  
> undefined  reference to ... Not frontend.o: undefined reference to ...
>
> Can someone help me fix this? Thanx.
>
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>




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