I'm building and running LSSolver, but there are some problems interfacing the linking code in ls.f90 with the various Fortran sources (from TOMS and for the Student-t inverse, for example) on Linux.
Yes, for these older fortan codes you may need to add/real_size:64, -r8, /autodouble or something similar to the command line to set the default real size. I think all fortran compilers have a flag like that so you don't have to edit all declarations.
Here is a list for some compilers:
- Visual Fortran: /real_size:64
- Intel Fortran: -real-size 64 (linux) or /real-size:64 (windows)
- Lahey/Fujitsu Fortran: -dbl
- gfortran: -fdefault-real-8
- g95: -r8
- IBM XL Fortran: -qrealsize=8
- SUN Fortran: -xtypemap=real:64
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