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-rw-r--r--emacs/guix-main.scm13
1 files changed, 12 insertions, 1 deletions
diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm
index 8d3a88152d..623da884f6 100644
--- a/emacs/guix-main.scm
+++ b/emacs/guix-main.scm
@@ -71,7 +71,14 @@
(define (list-maybe obj)
(if (list? obj) obj (list obj)))
-(define full-name->name+version package-name->name+version)
+(define (full-name->name+version spec)
+ "Given package specification SPEC with or without output,
+return two values: name and version. For example, for SPEC
+\"foo-0.9.1b:lib\", return \"foo\" and \"0.9.1b\"."
+ (let-values (((name version output)
+ (package-specification->name+version+output spec)))
+ (values name version)))
+
(define (name+version->full-name name version)
(string-append name "-" version))
@@ -247,6 +254,10 @@ Example:
(filter-map (match-lambda
((_ (? package? package))
(package-full-name package))
+ ((_ (? package? package) output)
+ (make-package-specification (package-name package)
+ (package-version package)
+ output))
(_ #f))
inputs))