profiles: Output in 'package->manifest-entry' defaults to "out".

Fixes <http://bugs.gnu.org/24029>.
Reported by Dylan Jeffers <sapientech@openmailbox.org>.

* guix/profiles.scm (package->manifest-entry): Change #:output to
default to "out".
(packages->manifest): Add 'package?' in second 'match' clause.
* tests/profiles.scm ("package->manifest-entry defaults to \"out\""):
New test.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/profiles.scm b/tests/profiles.scm
index fc1dfd2bfc..028d7b6fb4 100644
--- a/tests/profiles.scm
+++ b/tests/profiles.scm
@@ -207,6 +207,16 @@
                                        #:hooks '())))
     (return (derivation-inputs drv))))
 
+(test-assert "package->manifest-entry defaults to \"out\""
+  (let ((outputs (package-outputs packages:glibc)))
+    (equal? (manifest-entry-output
+             (package->manifest-entry (package
+                                        (inherit packages:glibc)
+                                        (outputs (reverse outputs)))))
+            (manifest-entry-output
+             (package->manifest-entry packages:glibc))
+            "out")))
+
 (test-assertm "profile-manifest, search-paths"
   (mlet* %store-monad
       ((guile ->   (package