bug#41449: Bash package breaking guix build after hash system update

[Edouard Klein]

Hi guys,

My apologies if this has already been reported.

It seems that the hash system update of a few days ago broke guix. When I try 
to guix pull
or to build guix from master, I get the following error:

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building 
/gnu/store/ra216y72fbkg8rbx41mhr15hcis5i91m-compute-guix-derivation.drv...
Computing Guix derivation for 'x86_64-linux'...  ice-9/psyntax.scm:1585:32: In 
procedure expand-macro:
Syntax error:
unknown location: %origin: extraneous field initializers (sha256) in form 
(%origin (method url-fetch) (uri (string-append "mirror:
//gnu/bash/bash-" version ".tar.gz")) (sha256 (base32 
"0kgvfwqdcd90waczf4gx39xnrxzijhjrzyzv7s8v4w31qqm0za5l")) (patch-flags (quote
 ("-p0"))) (patches (cons (search-patch "bash-linux-pgrp-pipe.patch") 
%patch-series-5.0)))
-guix pull: error: You found a bug: the program 
'/gnu/store/fsch1y8hilmkg21rmgk256j3wfi2w7wk-compute-guix-derivation'
failed to compute the derivation for Guix (version: 
"d8feee9f18ede0d1ea4d0e4876f09a0dab770295"; system: "x86_64-linux";
host version: "1.1.0"; pull-version: 1).
Please report it by email to <address@hidden>.
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The error is more precise when trying to make (after a make clean; make
clean-go):
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gnu/packages/bash.scm:120:13: error: (%origin (method url-fetch) (uri 
(string-append "mirror://gnu/bash/bash-" version ".tar.gz")) (sha256 (base32 
"0kgvfwqdcd90waczf4gx39xnrxzijhjrzyzv7s8v4w31qqm0za5l")) (patch-flags (quote 
("-p0"))) (patches (cons (search-patch "bash-linux-pgrp-pipe.patch") 
%patch-series-5.0))): extraneous field initializers (sha256)
-----

Of course it is also possible that I did something wrong.

Cheers,

Edouard.