Re: Cryptic idiom

[Frédéric Fauberteau <triaxx%NetBSD.org@localhost>]

> > It selects the first word in TOOLS_PLATFORM.${_t_} in the case that it 
> > is
> > a sequence of words.
> Was that from before bmake learned :[1]?

What makes me want to write:

```
.  elif defined(TOOLS_PLATFORM.${_t_}) && !empty(TOOLS_PLATFORM.${_t_})
#####
##### For each system-supplied tool, break the tool down into a path
##### and arguments so that either a symlink or a wrapper will be
##### properly created.
#####
TOOLS_CREATE+=    ${_t_}
TOOLS_PATH.${_t_}?= \
  ${TOOLS_PLATFORM.${_t_}:[1]}
TOOLS_ARGS.${_t_}?= \
  ${TOOLS_PLATFORM.${_t_}:[2..-1]}
.  endif
```

But it seems to work as expected only if there are several words in 
TOOLS_PLATFORM.${_t_}. In case where TOOLS_PLATFORM.bash would contain 
/bin/bash, both TOOLS_PATH.bash and TOOLS_ARGS.bash are /bin/bash while 
TOOLS_ARGS.bash should be empty.

To me, it looks like a bug. But I wonder if this isn't the expected 
behavior according to bmake(1):

> If start is greater than end, the words are output in reverse order.