Re: mkoctfile urgently needs attention before Octave 3.6.0

[Lukas Reichlin]

On 29.12.2011, at 20:54, c. wrote:

> Hi,
> 
> On 29 Dec 2011, at 19:00, address@hidden wrote:
> 
>> The only bug remaining is figuring out what linking flags you need on
>> McIntosh OS 10, and why mkoctfile -p LAPACK_LIBS isn't producing those
>> flags.
> 
> On my OSX 10.6.8 build of Octave, blas and lapack are provided via the vecLib 
> framework which ships with the system and is auto detected by configure.
> 
> the outbut of of the configure script says:
> 
> BLAS libraries:              -framework vecLib
> LAPACK libraries:            
> 
> while querying mkoctfile I get 
> 
> $ mkoctfile -p BLAS_LIBS
> -framework vecLib
> 
> $ mkoctfile -p LAPACK_LIBS
> 
> $ 
> 
> So possibly the problem lies with the fact that both blas and lapack are 
> linked using 
> one flag only? 
> 
> 
> I must admit that this incident is an argument in favor of Jordi's push 
> toward better integration of Octave and Octave-Forge ...
> 
>> - Jordi G. H.
> 
> c.


This is how it looks on my system:

ra:~ lukas$ port installed | grep octave
  octave-devel @3.4.3_1+accelerate+fltk+gcc45
  octave36 @3.5.91_0+atlas+fltk+gcc45
  octave36 @3.5.91_0+accelerate+fltk+gcc45 (active)
ra:~ lukas$ mkoctfile -p BLAS_LIBS
-ldotwrp -framework Accelerate
ra:~ lukas$ mkoctfile -p LAPACK_LIBS
-framework Accelerate
ra:~ lukas$ sudo port deactivate octave36 @3.5.91_0+accelerate+fltk+gcc45
--->  Deactivating octave36 @3.5.91_0+accelerate+fltk+gcc45
--->  Cleaning octave36
ra:~ lukas$ sudo port activate octave36 @3.5.91_0+atlas+fltk+gcc45
--->  Computing dependencies for octave36
--->  Activating octave36 @3.5.91_0+atlas+fltk+gcc45
--->  Cleaning octave36
ra:~ lukas$ mkoctfile -p BLAS_LIBS
-lcblas -lf77blas -latlas
ra:~ lukas$ mkoctfile -p LAPACK_LIBS
-llapack
ra:~ lukas$ sudo port deactivate octave36 @3.5.91_0+atlas+fltk+gcc45
--->  Deactivating octave36 @3.5.91_0+atlas+fltk+gcc45
--->  Cleaning octave36
ra:~ lukas$ sudo port activate octave-devel
--->  Computing dependencies for octave-devel
--->  Activating octave-devel @3.4.3_1+accelerate+fltk+gcc45
--->  Cleaning octave-devel
ra:~ lukas$ mkoctfile -p BLAS_LIBS
-ldotwrp -framework Accelerate
ra:~ lukas$ mkoctfile -p LAPACK_LIBS
-framework Accelerate
ra:~ lukas$ 

When I use the accelerate framework, it is linked twice, once from BLAS and 
once from LAPACK. When I add both libraries to the developer makefiles

          "$(mkoctfile -p BLAS_LIBS)" \
          "$(mkoctfile -p LAPACK_LIBS)"

I get the following error:

octave:1> makefile_chol
mkoctfile: unrecognized argument -framework Accelerate
octave:2> 

Looks like mkoctfile doesn't like duplicate arguments.

Lukas