filename -- chmod code for filename

[Fred T. Hamster]

add chmod to filename:

1. we would have a use for file access modification.
2. this bit is from value tagger.
3. it would be good to have the read/write thing done as an enum that's platform independent.

#ifdef UNIX

chmod_value = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;

#elif defined(WIN32)

chmod_value = _S_IREAD | _S_IWRITE;

#else

unknown. let's try unix...
chmod_value = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;

#endif

int chmod_result = chmod(path.s(), chmod_value);
if (chmod_result) {

log(istring("there was a problem changing permissions on ") + path

+ "; writing the new version might fail.");

}