Advice on linking D programs to fortran77 blas/lapack

[Jonathan Crapuchettes]

Michael,
Do you know if you can use the ATLAS package instead? I have it working 
currently with D. I found it a lot easer to work with since there is a C header 
file that can almost be directly ported to D.

If you are not interested in ATLAS, you should try using gdc to compile your 
program. It might help with the problems that you are encountering.

Hope that helps,
JC

Michael Gratton wrote:
> Hello,
> 
> I'm trying to link a D program to the BLAS and LAPACK libraries (numerical linear algebra packages usually written in FORTRAN77).
> 
> I've written an extern (C) {} block much like I would in C/C++ to provide "headers" for the functions I want to call, and then tried to build the program by
> 
> dmd test.d /usr/lib/libblas.a /usr/lib/liblapack.a
> 
> This nearly works, but LAPACK complains that several _gfortran symbols are undefined, such as:
> 
> (.text+0x83): undefined reference to `_gfortran_compare_string'
> (.text+0x341): undefined reference to `_gfortran_copy_string'
> (.text+0x69): undefined reference to `_gfortran_st_write'
> 
> ...and so on.  Has anyone else had luck with this kind of linking?  Am I missing a library that gcc magically includes when linking C and F77?  Am I just flat trying to link wrong with the dmd command?
> 
> Thanks!
> --mg