Svante Signell <[email protected]> writes:

> On Wed, 2019-09-04 at 06:31 +0200, Svante Signell wrote:
>> 
>> unpacking bootstrap Guile to '/gnu/store/ncp3yhr6c38kqvgb8c967vnhly59yf1m-
>> guile-bootstrap-2.0'...
>
> This stuff comes from gnu/packages/bootstrap.scm
> #!~a
> export GUILE_SYSTEM_PATH=~a/share/guile/2.0

…

Didn’t you use Guile 2.2 for the bootstrap?  This generated script
assumes that Guile 2.0 is used.

> BTW: What is ~a, something guile-specific?

“~a” is a format string placeholder.

(format #f "hello, ~a!  I‘m ~a years old."
           "world" 12)

=> "hello, world!  I‘m 12 years old."

-- 
Ricardo


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