Re: Does $^ preserve the order of the prerequisites?

[Oleksandr Gavenko]

On 2010.01.25 17:41, Peng Yu wrote:
> target: a b c d
>    some_command_whose_argument_order_mattters a b c d
>
> Suppose I have the above rule, I want to reduce it to the following.
> But I'm wondering if $^  preserve the order of the prerequisites.
> Could somebody let me know?
>
> target: a b c d
>    some_command_whose_argument_order_mattters $^
From info make "10.5.3 Automatic Variables":

$^
    The names of all the prerequisites, with spaces between them. For 
prerequisites which are archive members, only the member named is used 
(see Archives). A target has only one prerequisite on each other file it 
depends on, no matter how many times each file is listed as a 
prerequisite. So if you list a prerequisite more than once for a target, 
the value of $^ contains just one copy of the name. This list does not 
contain any of the order-only prerequisites; for those see the `$|' 
variable, below.


$|
    The names of all the order-only prerequisites, with spaces between 
them.

--
С уважением, Александр Гавенко.