extern "C" used in skeletons


git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@943 59561ff5-6e30-0410-9f3c-9617f08c8826
diff --git a/skeletons/NativeReal.h b/skeletons/NativeReal.h
index 32dd7f6..1f5266c 100644
--- a/skeletons/NativeReal.h
+++ b/skeletons/NativeReal.h
@@ -13,6 +13,10 @@
 
 #include <asn_application.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern asn_TYPE_descriptor_t asn_DEF_NativeReal;
 
 asn_struct_free_f  NativeReal_free;
@@ -22,4 +26,8 @@
 xer_type_decoder_f NativeReal_decode_xer;
 xer_type_encoder_f NativeReal_encode_xer;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* ASN_TYPE_NativeReal_H */