gnu: Add PerlMagick.

* gnu/packages/imagemagick.scm (perl-image-magick): New variable.

gnu/packages/imagemagick.scm

@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,6 +20,7 @@
 (define-module (gnu packages imagemagick)
   #:use-module (guix packages)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system perl)
   #:use-module (guix download)
   #:use-module ((guix licenses) #:select (fsf-free))
   #:use-module (gnu packages algebra)
@@ -90,3 +92,47 @@ (define-public imagemagick
 transform images, adjust image colors, apply various special effects, or draw
 text, lines, polygons, ellipses and Bézier curves.")
     (license (fsf-free "http://www.imagemagick.org/script/license.php"))))
+
+(define-public perl-image-magick
+  (package
+    (name "perl-image-magick")
+    (version "6.89")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://cpan/authors/id/J/JC/JCRISTY/"
+                           "PerlMagick-" version "-1.tar.gz"))
+       (sha256
+        (base32
+         "0n9afy1z5bhf9phrbahnkwhgcmijn8jggpbzwrivw1zhliliiy68"))))
+    (build-system perl-build-system)
+    (native-inputs `(("pkg-config" ,pkg-config)))
+    (inputs `(("imagemagick" ,imagemagick)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before
+          configure image-magick-flags
+          (lambda* (#:key inputs #:allow-other-keys)
+            (let ((im (assoc-ref inputs "imagemagick")))
+              (substitute* "Makefile.PL"
+                (("my \\$INC_magick = .*")
+                 "my $INC_magick = `pkg-config --cflags ImageMagick`;\n")
+                (("my \\$LIBS_magick = .*")
+                 "my $LIBS_magick = `pkg-config --libs ImageMagick`;\n")))))
+         (add-before
+          check skip-mpeg-tests
+          (lambda _
+            ;; TODO: MPEG tests fail even though our imagemagick supports
+            ;; MPEG.  Has been reported elsewhere,
+            ;; http://www.imagemagick.org/discourse-server/viewtopic.php?f=7&t=25036,
+            ;; so skip for now.
+            (delete-file "t/mpeg/read.t"))))))
+    (home-page "http://search.cpan.org/dist/PerlMagick")
+    (synopsis "Perl interface to ImageMagick")
+    (description "This Perl extension allows the reading, manipulation and
+writing of a large number of image file formats using the ImageMagick library.
+Use it to create, edit, compose, or convert bitmap images from within a Perl
+script.")
+    ;; See Magick.pm
+    (license (package-license imagemagick))))