Re: MXE: "undefined reference to `mxArray::mxArray(mxClassID, long long, long long, mxComplexity)"

[John W. Eaton]

On 12/27/2014 06:27 PM, Philip Nienhuis wrote:
> Philip Nienhuis wrote
> > When trying to cross-build Octave (3.9.0+ & 4.1.0+) with --enable-64, the
> > build of Octave stops with errors a la:
> >
> > :
> > octave-value/.libs/liboctave-value.a(octave_value_liboctave_value_la-ov-bool.o):
> > In function `octave_bool::as_mxArray() const':
> > /home/philip/devel/octdev/mxe/mxe64_20141208/tmp-octave/octave-3.9.0+/libinterp/octave-value/ov-bool.cc:234:
> > undefined reference to `mxArray::mxArray(mxClassID, long long, long long,
> > mxComplexity)'
> > :
>
> FTR, building stable-octave goes fine & it runs fine on Windows 64b

I'm pretty sure that the problem is that the generated mxarray.h file 
that was accidentally included in the 4.1.0+ distribution that 
mxe-octave is picking up for default-octave has lines like

  typedef int mwSize;
  typedef int mwIndex;

when these should be using int64_t on 64-bit systems instead of int. 
That problem should be fixed if the mxarray.h file is generated as part 
of the build process.

jwe