Description: redefine BASEDIR and DATADIR
Author: Cédric Boutillier <boutil@debian.org>
Last-Update: 2019-01-07

--- a/lib/prawn.rb
+++ b/lib/prawn.rb
@@ -17,7 +17,9 @@
   #
   #
   BASEDIR = File.expand_path(File.join(dir, '..'))
-  DATADIR = File.expand_path(File.join(dir, '..', 'data'))
+  # Definition of a data directory that may be not in BASEDIR/data (Debian patch)
+  # /usr/lib/ruby/vendor_ruby/prawn -> /usr/share/ruby-prawn/
+  DATADIR = File.expand_path(File.join(dir, '..', '..', '..', 'share', 'ruby-prawn'))
 
   FLOAT_PRECISION = 1.0e-9
 
--- a/spec/prawn/images/png_spec.rb
+++ b/spec/prawn/images/png_spec.rb
@@ -11,7 +11,7 @@
 
 describe Prawn::Images::PNG do
   describe 'When making a pdf file with png images' do
-    image_dir = "#{Prawn::BASEDIR}/data/images"
+    image_dir = "#{Prawn::DATADIR}/images"
     images = [
       ['Type 0', "#{image_dir}/web-links.png"],
       ['Type 0 with transparency', "#{image_dir}/ruport_type0.png"],