Emacs crashes with ImageMagick 6.8.2-3 through 6.8.3-9.

* configure.ac (IMAGEMAGICK_MODULE): Reject 6.8.2.
We want to reject 6.8.2-3 through 6.8.3-9, but there seems to be
no way to do this in pkg-config, so make do with a reasonable
approximation.
* etc/PROBLEMS: Mention problem with ImageMagick 6.8.2-3 through 6.8.3-9.

Fixes: debbugs:13867

ChangeLog

 2013-03-18  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Emacs crashes with ImageMagick 6.8.2-3 through 6.8.3-9 (Bug#13867).
+	* configure.ac (IMAGEMAGICK_MODULE): Reject 6.8.2.
+	We want to reject 6.8.2-3 through 6.8.3-9, but there seems to be
+	no way to do this in pkg-config, so make do with a reasonable
+	approximation.
+
 	Automate the build of ja-dic.el (Bug#13984).
 	* .bzrignore: Add leim/ja-dic/.
 

configure.ac

@@ -1880,7 +1880,8 @@ if test "${HAVE_X11}" = "yes"; then
     ## 6.2.8 is the earliest version known to work, but earlier versions
     ## might work - let us know if you find one.
     ## 6.0.7 does not work.  See bug#7955.
-    IMAGEMAGICK_MODULE="Wand >= 6.2.8"
+    ## 6.8.2 makes Emacs crash; see Bug#13867.
+    IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
     PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
     AC_SUBST(IMAGEMAGICK_CFLAGS)
     AC_SUBST(IMAGEMAGICK_LIBS)

etc/ChangeLog

+2013-03-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Emacs crashes with ImageMagick 6.8.2-3 through 6.8.3-9 (Bug#13867).
+	* PROBLEMS: Mention problem with ImageMagick 6.8.2-3 through 6.8.3-9.
+
 2013-03-12  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Add coding tags for iso-2022-7bit files that are not already tagged.

etc/PROBLEMS

@@ -206,6 +206,10 @@ added a line like this at the beginning of files of Lisp code:
 If your tar has this problem, install GNU tar--if you can manage to
 untar it :-).
 
+** Emacs crashes when displaying PNG images with simple (tRNS) transparency.
+This is due to a bug introduced in ImageMagick 6.8.2-3.  The bug
+should be fixed in ImageMagick 6.8.3-10.  Please see Bug#13867.
+
 ** Crashes when displaying GIF images in Emacs built with version
 libungif-4.1.0 are resolved by using version libungif-4.1.0b1.
 Configure checks for the correct version, but this problem could occur