gexp: Add #:guile parameter to ‘gexp->file’ and ‘scheme-file’.

This brings ‘gexp->file’ in line with its documentation and mirrors
what’s done for ‘gexp->script’ and ‘program-file’.

Fixes <https://issues.guix.gnu.org/69401>.

* guix/gexp.scm (gexp->file): Add #:guile, as was already documented.
(<scheme-file>)[guile]: New field.
(scheme-file): Add #:guile.
(scheme-file-compiler): Honor ‘guile’ field.
* tests/gexp.scm ("gexp->file")
("gexp->file + file-append", "gexp->file + #:splice?")
("gexp->file, cross-compilation")
("gexp->file, cross-compilation with default target")
Add #:guile to ‘gexp->file’ calls.
("gexp-modules deletes duplicates")
("gexp->derivation & with-imported-module & computed module")
("gexp->derivation & with-extensions", "scheme-file"): Likewise for
‘scheme-file’ calls.

Change-Id: I47536063d5e411e561ec321e535267e92dd06044

Reported-by: Efraim Flashner <efraim@flashner.co.il>
Change-Id: I58d653c7fbe65c665bafcbd332ac9b264ddeab64

1 files changed, 3 insertions, 2 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 3ad44b4acb..5827e0de14 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -12192,9 +12192,10 @@ The resulting file holds references to all the dependencies of @var{exp}
 or a subset thereof.
 @end deffn
 
-@deffn {Procedure} scheme-file name exp [#:splice? #f] [#:set-load-path? #t]
+@deffn {Procedure} scheme-file name exp [#:splice? #f] @
+           [#:guile #f] [#:set-load-path? #t]
 Return an object representing the Scheme file @var{name} that contains
-@var{exp}.
+@var{exp}.  @var{guile} is the Guile package used to produce that file.
 
 This is the declarative counterpart of @code{gexp->file}.
 @end deffn