1 files changed, 7 insertions, 0 deletions

diff --git a/INTERN.h b/INTERN.h
index ba71c2f7ad..22e42c5b97 100644
--- a/INTERN.h
+++ b/INTERN.h
@@ -23,11 +23,18 @@
 #  define EXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
 #  define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
 #else
+#  ifdef __cplusplus
+#   define EXT
+#   define dEXT
+#   define EXTCONST extern const
+#   define dEXTCONST const
+#else
 #  define EXT
 #  define dEXT
 #  define EXTCONST const
 #  define dEXTCONST const
 #endif
+#endif
 
 #undef INIT
 #define INIT(x) = x