commit 8ce96cc5d590a1c094fb316968f2db8464f3be82
Author: Joakim Nohlgård <joakim.nohlgard@eistec.se>
Date:   Fri Mar 30 13:47:28 2018 +0200

    OCIOYaml: Remove forward declarations to use system yaml-cpp headers

diff --git a/src/core/OCIOYaml.cpp b/src/core/OCIOYaml.cpp
index 68fcef6..8047d7e 100644
--- a/src/core/OCIOYaml.cpp
+++ b/src/core/OCIOYaml.cpp
@@ -30,43 +30,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <OpenColorIO/OpenColorIO.h>
 
-#ifndef WIN32
-
-// fwd declare yaml-cpp visibility
-#pragma GCC visibility push(hidden)
-namespace YAML {
-    class Exception;
-    class BadDereference;
-    class RepresentationException;
-    class EmitterException;
-    class ParserException;
-    class InvalidScalar;
-    class KeyNotFound;
-    template <typename T> class TypedKeyNotFound;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::ColorSpace>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::Config>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::Exception>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::GpuShaderDesc>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::ImageDesc>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::Look>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::Processor>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::Transform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::AllocationTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::CDLTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::ColorSpaceTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::DisplayTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::ExponentTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::FileTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::GroupTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::LogTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::LookTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::MatrixTransform>;
-    template <> class TypedKeyNotFound<OCIO_NAMESPACE::TruelightTransform>;
-}
-#pragma GCC visibility pop
-
-#endif
-
 #ifdef WIN32
 #pragma warning( push )
 #pragma warning( disable: 4146 )