RMagick doesn't support HDRI ImageMagick

[Benabik]

I'm trying to get RMagick to work with Fink's imagemagick package, but I get the following error:

RMagick does not work when ImageMagick is configured for High Dynamic Range Images.
Don't use the --enable-hdri option when configuring ImageMagick.

Some web searching turns up a patch for pld-linux:

--- RMagick-2.13.0/ext/RMagick/rmimage.c~      2009-12-21 11:34:57.000000000 0100
+++ RMagick-2.13.0/ext/RMagick/rmimage.c       2010-03-03 13:58:39.770186927 0100
@@ -9815,7 +9815,7 @@
 #else
             IndexPacket *indexes = GetIndexes(image);
 #endif
-            old_color = image->colormap[*indexes];
+            old_color = image->colormap[(unsigned long)*indexes];
         }
         if (!image->matte)
         {
--- RMagick-2.13.0/ext/RMagick/extconf.rb~     2009-12-24 07:03:02.000000000 
0100
+++ RMagick-2.13.0/ext/RMagick/extconf.rb      2010-03-03 14:00:35.276124598 
0100
@@ -151,15 +151,6 @@

   $magick_version = `Magick-config --version`.chomp

-  # Ensure ImageMagick is not configured for HDRI
-  unless checking_for("HDRI disabled version of ImageMagick") do
-    not (`Magick-config --version`["HDRI"])
-  end
-    exit_failure "\nCan't install RMagick #{RMAGICK_VERS}."+
-           "\nRMagick does not work when ImageMagick is configured for High 
ynamic Range Images."+
-           "\nDon't use the --enable-hdri option when configuring 
mageMagick.\n"
-  end
-
   # Save flags
   $CFLAGS     = ENV["CFLAGS"].to_s   + " " + `Magick-config --cflags`.chomp
   $CPPFLAGS   = ENV["CPPFLAGS"].to_s + " " + `Magick-config --cppflags`.chomp

[saurabhnanda]

I'm stuck with the same problem. How does one solve this?

[joneshf]

Having the same issue here on arch linux. Can anyone comment on @bricef's fix?

[bricef]

@joneshf I have no idea what I'm doing :) My branch is nothing but the patch above applied. I haven't really had a look at it in any depth. Didn't even know that it would be cross referenced here.

[joneshf]

Maybe not, but your branch worked to install over here, so it's worth a look.

[jk779]

This affects me on recent Arch-Linux. Maintainers decided to enable hdri - have to build it from source now which is very pleasant. Here's the commit on the Arch-side:
https://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/imagemagick&id=ba309a9904a66d9581e461cad7c648043246bb79

I don't think that they will change that. Can we achieve a solution on rmagick's side?

[mejymejy]

I'm with @jk779. How difficult is this change? What problem does enabling HDRI pose with the current rmagick?

[josemotanet]

I also use Arch Linux and would like to see this fixed. 👍

[linduxed]

Same situation here.

Please, fix this for Arch Linux :) +watching thread.

[heaven]

Same here. 👍

[whites11]

+1

[peteonrails]

@bricef's Fix works for me on Arch and I have not been able to find any ill effects, using both regular and HDR images. Has anyone issued a pull request to get this patch in to master?

[linduxed]

While I think @bricef should go ahead and create a PR against master, considering there's been no activity on this repo for the past eight months, it might be easier to just use his fork.

[peteonrails]

I agree that using @bricef's fork is easier once you've spent the time to find the solution. But to save future developers the time it takes to research the install issue, someone's got the beat a drum to get the root cause fixed.

Folks can help get this issue resolved by not only making a little noise, but by confirming that the patch in the Pull Request works, does not cause any production issues, and that you've tested it.

Thanks in advance!