Apack++ 1.2 Patch

Our patch arpack++1.2.patch.diff fixes ARPACK++1.2 to run with compiler g++ 4.0.2

It fixes the compile errors encountered when compiling ARPACK++ with more recent compiler versions!

"ARPACK++ is an object-oriented version of the ARPACK package. ARPACK is a well known collection of FORTRAN subroutines designed to compute a few eigenvalues and eigenvectors of large scale sparse matrices and pencils."

• Use of this-> pointer for members of template classes
• Includes corrected (e.g. math.h -> cmath)
• Namespace std:: added

• 'n' was not declared in this scope
• 'nconv' was not declared in this scope

Make sure that arpack++ contains the version 1.2
The first line in arpack++/README should be: "ARPACK++ version 1.2. Feb 20, 2000."
>ls
   arpack++/    arpack++1.2.patch.diff
>patch -p 1 -d arpack++ < arpack++1.2.patch.diff

• Patch: arpack++1.2.patch.diff

• just remove '-lg2c'
• or try instead: '-lgfortran -lgfortranbegin -lnsl'