Bump cairo to 1.15.12 for Windows

CHANGELOG.md

@@ -1,10 +1,10 @@
 # Squib CHANGELOG
 Squib follows [semantic versioning](http://semver.org).
 
-## v0.15.0 / Unreleased
+## v0.14.1 / 2018-03-15
 
 Chores:
-* Bumped deps: Pango et al. to 3.2.0
+* Bumped deps: Pango et al. to 3.2.1, Cairo to 1.15.12. (Fixes an issue with Ruby 2.5 and Windows)
 
 ## v0.14.0 / 2017-11-06
 

squib.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(/^(spec|samples|docs|benchmarks)\//)
   spec.require_paths = ['lib']
 
-  spec.add_runtime_dependency 'cairo',                 '1.15.11'
+  spec.add_runtime_dependency 'cairo',                 '1.15.12'
   spec.add_runtime_dependency 'classy_hash',           '0.2.1'
   spec.add_runtime_dependency 'gio2',                  '3.2.1'
   spec.add_runtime_dependency 'gobject-introspection', '3.2.1'