Re: Configuring the latest default hg on OSX

[Jaroslav Hajek]

On Sun, Jun 29, 2008 at 2:50 AM, Ben Abbott <address@hidden> wrote:
> Today I tried to configure the latest sources with the intent of using the
> Fink package manager on OSX. I'm concerned about the OpenGL part (as I have
> no experience with it).
>
> I'd appreciate any comments respecting "the good, the bad, and the ugly"
> with regards the results of the configure process below.
>
> Octave is now configured for i386-apple-darwin9.3.0
>
>  Source directory:     .
>  Installation prefix:  /sw
>  C compiler:           gcc  -mieee-fp  -Wall -W -Wshadow -O3
> -I/usr/X11R6/include
>  C++ compiler:         g++  -mieee-fp  -Wall -W -Wshadow -Wold-style-cast -g
> -O3
>  Fortran compiler:     /sw/bin/gfortran -fbounds-check -ff2c -g -O3
> -mieee-fp
>  Fortran libraries:    /sw/lib/gcc4.3/lib/libgfortran.dylib
>  BLAS libraries:
> -Wl,-framework,Accelerate,-dylib_file,/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib:/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
>  FFTW libraries:       -lfftw3 -lfftw3f
>  GLPK libraries:       -lglpk
>  UMFPACK libraries:    -lumfpack
>  AMD libraries:        -lamd
>  CAMD libraries:       -lcamd
>  COLAMD libraries:     -lcolamd
>  CCOLAMD libraries:    -lccolamd
>  CHOLMOD libraries:    -lcholmod
>  CXSPARSE libraries:   -lcxsparse
>  HDF5 libraries:       -lhdf5
>  CURL libraries:       -lcurl
>  REGEX libraries:      -L/sw/lib -lpcre
>  QHULL libraries:      -lqhull
>  LIBS:                 -lreadline  -lncurses
> -Wl,-framework,Accelerate,-dylib_file,/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib:/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
> -lhdf5 -lz -lm
>  Default pager:        less
>  gnuplot:              gnuplot
>  OPENGL libraries:
>  fltk backend libs:    -L/sw/lib/fltk-aqua/lib -L/sw/lib -lfltk_gl
> -framework AGL -framework OpenGL -lfltk -lpthread -framework Carbon
> -framework ApplicationServices
>
>  Do internal array bounds checking:  false
>  Build static libraries:             false
>  Build shared libraries:             true
>  Dynamic Linking:                    true (dyld)
>  Include support for GNU readline:   true
>  64-bit array dims and indexing:     false
>
> configure: WARNING: A BLAS library was detected but found incompatible with
> your Fortran 77 compiler.  The reference BLAS implementation will be used.
> To improve performance, consider using a different Fortran compiler or a
> switch like -ff2c to make your Fortran compiler use a calling convention
> compatible with the way your BLAS library was compiled, or use a different
> BLAS library.
> configure:
>
> Ben
>
>
>

I can't help much with the GL libraries (and I don't see what your
problem is, or if there is any), but your report reveals a bug in the
acx_lapack script: In case of missing or invalid BLAS (like in your
case), the check for LAPACK should be skipped entirely, and
LAPACK_LIBS should probably be nullified. I'll submit a patch for the
autoconf archive. By the way, does the warning about invalid BLAS
occur even if you omit the -ff2c option? If no, then you'll probably
want to turn it off.

If yes, then that's really weird (as it implies that the BLAS lib is
compatible with neither gfortran nor g77). I'd consider it a bug if a
system-provided library is incompatible with the default compiler. Or
is g77 the default? Perhaps this is a bug in OSX?

-- 
RNDr. Jaroslav Hajek
computing expert
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz