gnu: bioperl-minimal: Avoid top-level cross-module references.

This could lead to circular reference breakage.

* gnu/packages/bioinformatics.scm (bioperl-minimal): Move top-level
references to perl-* variables and their transitive inputs to
'arguments' and 'inputs'.

gnu/packages/bioinformatics.scm

@@ -1147,15 +1147,6 @@ alignments and perform the following operations:
     (license license:expat)))
 
 (define-public bioperl-minimal
-  (let* ((inputs `(("perl-module-build" ,perl-module-build)
-                   ("perl-data-stag" ,perl-data-stag)
-                   ("perl-libwww" ,perl-libwww)
-                   ("perl-uri" ,perl-uri)))
-         (transitive-inputs
-          (map (compose package-name cadr)
-               (delete-duplicates
-                (concatenate
-                 (map (compose package-transitive-target-inputs cadr) inputs))))))
   (package
     (name "bioperl-minimal")
     (version "1.7.0")
@@ -1174,6 +1165,12 @@ alignments and perform the following operations:
          "0wl8yvzcls59pwwk6m8ahy87pwg6nnibzy5cldbvmcwg2x2w7783"))))
     (build-system perl-build-system)
     (arguments
+     (let ((transitive-inputs
+            (map (compose package-name cadr)
+                 (delete-duplicates
+                  (concatenate
+                   (map (compose package-transitive-target-inputs cadr)
+                        (package-inputs this-package)))))))
        `(#:phases
          (modify-phases %standard-phases
            (add-after
@@ -1195,8 +1192,12 @@ alignments and perform the following operations:
                              (wrap-program file
                                `("PERL5LIB" ":" prefix (,path))))
                            (find-files bin "\\.pl$"))
-                #t))))))
-      (inputs inputs)
+                 #t)))))))
+    (inputs
+     `(("perl-module-build" ,perl-module-build)
+       ("perl-data-stag" ,perl-data-stag)
+       ("perl-libwww" ,perl-libwww)
+       ("perl-uri" ,perl-uri)))
     (native-inputs
      `(("perl-test-most" ,perl-test-most)))
     (home-page "https://metacpan.org/release/BioPerl")
@@ -1210,7 +1211,7 @@ objects are made from the Sequence objects, Sequence objects have access to
 Annotation and SeqFeature objects and databases, Blast objects can be
 converted to Alignment objects, and so on.  This means that the objects
 provide a coordinated and extensible framework to do computational biology.")
-      (license license:perl-license))))
+    (license license:perl-license)))
 
 (define-public perl-bio-db-hts
   (package