Add HAVE_OPENCV to config

CMakeLists.txt

@@ -23,6 +23,8 @@ find_package( MsgPack REQUIRED )
 find_package( LibSGM )
 #find_package( ZLIB REQUIRED )
 
+set(HAVE_OPENCV TRUE)
+
 # Readline library is not required on Windows
 # May also entirely remove dependence on this... it should be optional at least.
 if (NOT WIN32)

common/cpp/include/ftl/config.h.in

@@ -5,6 +5,7 @@
 #cmakedefine HAVE_OPENCVCUDA
 #cmakedefine HAVE_URIPARSESINGLE
 #cmakedefine HAVE_CUDA
+#cmakedefine HAVE_OPENCV
 
 extern const char *FTL_VERSION_LONG;
 extern const char *FTL_VERSION;