remove unneeded use of long-double function
remove unneeded use of long-double function

Using stdtold() instead of strtod() causes trouble with the
version of gcc on Fedora 6.

Merge to v6.5

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket