Add option imagemagick-types-enable

* lisp/image.el: For clarity, call imagemagick-register-types at
top-level, rather than relying on a custom :initialize.
(imagemagick-types-enable): New option. 
(imagemagick-register-types): Respect imagemagick-types-inhibit.
If disabling support, remove elements altogether rather
than using an impossible regexp.
(imagemagick-types-inhibit): Give it the default init function.

* src/image.c (Fimagemagick_types): Doc fix.

* etc/NEWS: Mention this.

Fixes: debbugs:11557

1 files changed, 10 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index f60fcb0b14d..c2c6e0da37b 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,13 @@
+2012-05-31  Glenn Morris  <rgm@gnu.org>
+
+        * image.el: For clarity, call imagemagick-register-types at
+        top-level, rather than relying on a custom :initialize.
+        (imagemagick-types-enable): New option.  (Bug#11557)
+        (imagemagick-register-types): Respect imagemagick-types-inhibit.
+        If disabling support, remove elements altogether rather
+        than using an impossible regexp.
+        (imagemagick-types-inhibit): Give it the default init function.
+
 2012-05-31  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * emacs-lisp/bytecomp.el (byte-compile-fix-header): Handle