gnu: guile-irregex: Update to 0.9.11.

Since upstream now provides tests for guile, they are executed, both before
install (testing the internals) and after install (making sure the guile
module and everything works well).

Guile 2.0 for some reason cannot load "foo.scm" using (load-from-path "foo"),
so symlinks are created to work around that.

* gnu/packages/guile-xyz.scm (guile-irregex)[version]: Update to 0.9.11.
[arguments]: Convert to gexp.
<#:phases>{'move-files-around}: Copy files instead of moving.
{'check, 'check-installed}: New phases.
(guile2.0-irregex)[arguments]: Add 'create-symlinks phase.

Change-Id: Ib9d4e9c24475aa8e7fc1e70b868b690eaf6ad42e
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/guile-xyz.scm

@@ -2895,7 +2895,7 @@ See http://minikanren.org/ for more on miniKanren generally.")
 (define-public guile-irregex
   (package
     (name "guile-irregex")
-    (version "0.9.6")
+    (version "0.9.11")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2903,25 +2903,46 @@ See http://minikanren.org/ for more on miniKanren generally.")
                     version ".tar.gz"))
               (sha256
                (base32
-                "1ia3m7dp3lcxa048q0gqbiwwsyvn99baw6xkhb4bhhzn4k7bwyqq"))))
+                "026kzl96pmwbjqdc7kh8rdh8ng813sjvdsik0dag5acza20sjm19"))))
     (build-system guile-build-system)
     (arguments
-     '(#:phases (modify-phases %standard-phases
-                  (add-after 'unpack 'move-files-around
-                    (lambda _
-                      ;; Move the relevant source files to src/ and create the
-                      ;; rx/ directory to match the expected module hierarchy.
-                      (mkdir-p "src/rx/source")
-                      (rename-file "irregex-guile.scm"
-                                   "src/rx/irregex.scm")
-                      (rename-file "irregex.scm"
-                                   "src/rx/source/irregex.scm")
-                      ;; Not really reachable via guile's packaging system,
-                      ;; but nice to have around.
-                      (rename-file "irregex-utils.scm"
-                                   "src/rx/source/irregex-utils.scm")
-                      #t)))
-       #:source-directory "src"))
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'move-files-around
+            (lambda _
+              ;; Copy the relevant source files to src/ and create the
+              ;; rx/ directory to match the expected module hierarchy.
+              (mkdir-p "src/rx/source")
+              (copy-file "irregex-guile.scm"
+                         "src/rx/irregex.scm")
+              (copy-file "irregex.scm"
+                         "src/rx/source/irregex.scm")
+
+              (mkdir-p "src/rx/irregex")
+              (copy-file "irregex-utils-guile.scm"
+                         "src/rx/irregex/utils.scm")
+              (copy-file "irregex-utils.scm"
+                         "src/rx/source/irregex-utils.scm")))
+          (add-after 'build 'check
+            (lambda _
+              (for-each (lambda (f)
+                          (invoke "guile" "--no-auto-compile" "-L" "." "-s" f))
+                        (find-files "tests" "^guile-.*\\.scm"))))
+          (add-after 'install 'check-installed
+            (lambda _
+              (define-values (scm go) (target-guile-scm+go #$output))
+              (for-each
+               (lambda (f)
+                 (substitute* f
+                   (("\\(load-from-path \"irregex\"\\)")
+                    "(use-modules (rx irregex))")
+                   (("\\(load-from-path \"irregex-utils\"\\)")
+                    "(use-modules (rx irregex utils))"))
+                 (invoke "guile" "-L" scm "-C" go "-L" "tests" f))
+               (delete "tests/guile-cset.scm" ; Tests non-exported API
+                       (find-files "tests" "^guile-.*\\.scm"))))))
+      #:source-directory "src"))
     (native-inputs
      (list guile-3.0))
     (home-page "https://synthcode.com/scheme/irregex")
@@ -2936,6 +2957,27 @@ inspired by the SCSH regular expression system.")
   (package
     (inherit guile-irregex)
     (name "guile2.0-irregex")
+    (arguments
+     (substitute-keyword-arguments (package-arguments guile-irregex)
+       ((#:phases phases)
+        #~(modify-phases #$phases
+            ;; For some reason guile 2.0 cannot load foo.scm using
+            ;; (load-from-path "foo").  So create symlinks to work around it.
+            (add-before 'check 'create-symlinks
+              (lambda _
+                (use-modules (ice-9 regex))
+                (for-each
+                 (lambda (f)
+                   (symlink (regexp-substitute #f (string-match "/([^/]+)$" f)
+                                               1 ".scm")
+                            f))
+                 '("tests/guile/test-support"
+                   "tests/test-cset"
+                   "tests/test-irregex"
+                   "tests/test-irregex-from-gauche"
+                   "tests/test-irregex-pcre"
+                   "tests/test-irregex-scsh"
+                   "tests/test-irregex-utf8"))))))))
     (native-inputs (list guile-2.0))))
 
 (define-public guile2.2-irregex