building 3.2.3 but not finding arpack

[John W. Eaton]

On 19-Nov-2009, Ben Abbott wrote:

| My configure has the following options.
| 
| configure: running /bin/sh ./configure --disable-option-checking 
'--prefix=/sw'  'FLIBS=/sw/lib/gcc4.4/lib/libgfortran.dylib' 
'F77=/sw/bin/gfortran' 'CC=gcc-4' 'CPP=cpp-4' 'CXX=g++-4' 
'--infodir=${prefix}/share/info' '--mandir=${prefix}/share/man' 
'--libexecdir=${prefix}/lib' '-enable-shared' '-enable-dl' '--disable-static' 
'--with-hdf5' 'CPPFLAGS=-g -I/sw/include -I/sw/include/freetype2 
-I/sw/lib/flex/include' 'FFLAGS=-g -ff2c' 'LDFLAGS=-L/sw/lib/fltk-aqua/lib 
-L/sw/lib/flex/lib -L/sw/lib/gcc4.4/lib/ -L/sw/lib -larpack -lgfortran 
-lGraphicsMagick -lfltk_gl -lfltk -lpthread' '--with-blas=-framework 
Accelerate' 'CFLAGS=-g -I /sw/include -O3' 'CXXFLAGS=-g -I /sw/include -O3' 
--cache-file=/dev/null --srcdir=.
| checking for a BSD-compatible install... /sw/bin/ginstall -c
| 
| My arpack lib, which worked with the developers sources until about the time 
libtool was added, is /sw/lib/libarpack.a
| 
| Unfortunately, configure does not find it. From config.log ...
| 
|  1427 configure:19002: checking for F77_FUNC(dseupd,DSEUPD) in -larpack
|  1428 configure:19045: gcc-4 -o conftest -g -I /sw/include -O3 -g 
-I/sw/include -I/sw/include/freetype2 -I/sw/lib/flex/include -I/sw/include 
-L/sw/      lib/fltk-aqua/lib -L/sw/lib/flex/lib -L/sw/lib/gcc4.4/lib/ 
-L/sw/lib -larpack -lgfortran -lGraphicsMagick -lfltk_gl -lfltk -lpthread 
conftest      .c -larpack  /sw/lib/gcc4.4/lib/libgfortran.dylib -lhdf5 -lz -lm  
>&5

The undefined symbols you show are from LAPACK and/or BLAS.  I
don't see those libraries listed in the above command.

The test in configure is

  save_LIBS="$LIBS"
  LIBS="$LAPACK_LIBS $BLAS_LIBS $FLIBS $LIBS"
  OCTAVE_CHECK_LIBRARY(arpack, ARPACK,
    [arpack not found.  The eigs function will be disabled.],
    [],
    [dseupd],
    [Fortran 77], [don't use the ARPACK library, disable eigs function])
  LIBS="$save_LIBS"

so we are putting LAPACK and BLAS libraries in LIBS, then using the
library checking macro.  Why don't these show up in the command above?

On my system, with the current sources I see

  configure:28523: checking for dseupd in -larpack
  configure:28530: gfortran -o conftest -O   conftest.f -larpack -llapack 
-lblas  -L/usr/lib/gcc/x86_64-linux-gnu/4.3.4 
-L/usr/lib/gcc/x86_64-linux-gnu/4.3.4/../../../../lib -L/lib/../lib 
-L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.3.4/../../.. 
-lgfortranbegin -lgfortran -lm -lm  -lfreetype -lz -L/usr/X11R6/lib -lGL -lGLU 
>&5

Yours says checking for F77_FUNC(dseupd,DSEUPD), which seems odd since
the F77_FUNC macro is not used in the ARPACK test or the
OCTAVE_CHECK_LIBRARY macro from acinclude.m4

I'm not sure why the lines in the configure script (19002 vs 28523).
What version of autoconf are you using?  I have 2.64.

Have you run autogen.sh recently?

jwe