Report OpenSubdiv version Blender is compiled against

intern/opensubdiv/opensubdiv_capi.cc

@@ -33,6 +33,7 @@
 #include <stdlib.h>
 #include <GL/glew.h>
 
+#include <opensubdiv/version.h>
 #include <opensubdiv/osd/glMesh.h>
 
 /* CPU Backend */
@@ -381,3 +382,8 @@ int openSubdiv_supportGPUDisplay(void)
 	        (GLEW_ARB_texture_buffer_object || GLEW_EXT_texture_buffer_object)));
 	/* also ARB_explicit_attrib_location? */
 }
+
+int openSubdiv_getVersionHex(void)
+{
+	return OPENSUBDIV_VERSION_NUMBER;
+}

intern/opensubdiv/opensubdiv_capi.h

@@ -152,6 +152,8 @@ void openSubdiv_init(bool gpu_legacy_support);
 void openSubdiv_cleanup(void);
 bool openSubdiv_gpu_legacy_support(void);
 
+int openSubdiv_getVersionHex(void);
+
 #ifdef __cplusplus
 }
 #endif