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-rw-r--r--guix/derivations.scm15
1 files changed, 10 insertions, 5 deletions
diff --git a/guix/derivations.scm b/guix/derivations.scm
index d7f1f3764c..213d9d5586 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -440,7 +440,7 @@ known in advance, such as a file download."
(define %guile-for-build
;; The derivation of the Guile to be used within the build environment,
;; when using `build-expression->derivation'.
- (make-parameter (false-if-exception (nixpkgs-derivation "guile"))))
+ (make-parameter (false-if-exception (nixpkgs-derivation* "guile"))))
(define* (imported-files store files
#:key (name "file-import") (system (%current-system)))
@@ -509,7 +509,8 @@ search path."
#:key (outputs '("out"))
hash hash-algo
(env-vars '())
- (modules '()))
+ (modules '())
+ guile-for-build)
"Return a derivation that executes Scheme expression EXP as a builder for
derivation NAME. INPUTS must be a list of (NAME DRV-PATH SUB-DRV) tuples;
when SUB-DRV is omitted, \"out\" is assumed. EXP is evaluated in an
@@ -519,9 +520,13 @@ of string/output-path pairs made from INPUTS. Optionally, ENV-VARS is a list
of string pairs specifying the name and value of environment variables
visible to the builder. The builder terminates by passing the result of EXP
to `exit'; thus, when EXP returns #f, the build is considered to have
-failed."
+failed.
+
+EXP is built using GUILE-FOR-BUILD (a derivation). When GUILE-FOR-BUILD is
+omitted or is #f, the value of the `%guile-for-build' fluid is used instead."
(define guile
- (string-append (derivation-path->output-path (%guile-for-build))
+ (string-append (derivation-path->output-path (or guile-for-build
+ (%guile-for-build)))
"/bin/guile"))
(define module-form?
@@ -579,7 +584,7 @@ failed."
,@(if mod-dir `("-L" ,mod-dir) '())
,builder)
env-vars
- `((,(%guile-for-build))
+ `((,(or guile-for-build (%guile-for-build)))
(,builder)
,@(map cdr inputs)
,@(if mod-drv `((,mod-drv)) '()))