Glam:compilers

During development in early summer 2008 a number of compiler specific issues were discovered with glam. After some development work glam should now compile and run with the following ccompilers:


 * ifort (intel)
 * gfortran (gnu)
 * g95
 * f95 (Sun)
 * pgf90 (Portland Group)

Note that g95 gives much slower performance than the others. Sun gives probably the fastest run times. gfortran gives informative error messages, is compatible with ddd, and is quite strict on bounds checking, and so may be the tool of choice for initial development/debugging.