X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/72c3b81efb1079f8db070ac89e97e9b7bcedd61b..626f99a27f803ffd3439eb7191ebb9b5e8d3976a:/doc/bugs/img_test_failure_on_nix.mdwn

diff --git a/doc/bugs/img_test_failure_on_nix.mdwn b/doc/bugs/img_test_failure_on_nix.mdwn
index 5e439f7a9..911cc66a1 100644
--- a/doc/bugs/img_test_failure_on_nix.mdwn
+++ b/doc/bugs/img_test_failure_on_nix.mdwn
@@ -15,3 +15,19 @@ Peter Simons wrote:
 	Failed 2/19 subtests 
  
 > Do you have any idea how to fix this issue?
+
+>> As far as I can tell, this indicates that your ImageMagick doesn't
+>> support PDF (in Debian and its derivatives this requires `libmagickcore-extra`).
+>> Please run tests on a system with a fully-featured ImageMagick (in Debian we put
+>> `libmagickcore-extra` in the `Build-Depends-Indep` for this), or if you are testing
+>> at install time on arbitrary end-user systems, please tell me what this says on a
+>> system where the test fails:
+>>
+>>     perl -MData::Dumper -MImage::Magick -e 'print Dumper([(new Image::Magick)->QueryFormat("pdf")])'
+>>
+>> If the result is `$VAR1 = [ undef ]`, then we can easily make the test skip that bit if PDFs don't work.
+>> --[[smcv]]
+
+>>> That configuration test doesn't actually work because of the way
+>>> ImageMagick processes PDFs via ghostscript, but loading a sample
+>>> PDF and probing its width does seem to work. [[done]] --[[smcv]]