diff --git a/spec/getdns-0.377.tgz b/spec/getdns-0.377.tgz
deleted file mode 100644
index 74286d09..00000000
Binary files a/spec/getdns-0.377.tgz and /dev/null differ
diff --git a/spec/getdns-0.378.tgz b/spec/getdns-0.378.tgz
new file mode 100644
index 00000000..3c7463de
Binary files /dev/null and b/spec/getdns-0.378.tgz differ
diff --git a/spec/getdns_core_only.h b/spec/getdns_core_only.h
index d92feeaf..0ade8873 100644
--- a/spec/getdns_core_only.h
+++ b/spec/getdns_core_only.h
@@ -1,10 +1,14 @@
-/* Created at 2014-01-22-09-54-56*/
+/* Created at 2014-01-22-10-02-56*/
 #ifndef GETDNS_H
 #define GETDNS_H
 
 #include <stdint.h>
 #include <stdlib.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define GETDNS_COMPILATION_COMMENT The API implementation should fill in something here, such as a compilation version string and date, and change it each time the API is compiled.
 
 /* Return values */
@@ -594,4 +598,7 @@ getdns_context_set_extended_memory_functions(
   void                  (*free)(void *userarg, void *ptr)
 );
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* GETDNS_H */
diff --git a/spec/index.html b/spec/index.html
index 222dd71b..e4d500d4 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -2210,7 +2210,7 @@ The response dicts inherit the custom memory management functions and the value
 
 <h1>9. The Generated Files</h1>
 
-<p>There is <a href="getdns-0.377.tgz">a tarball</a> that includes the .h files,
+<p>There is <a href="getdns-0.378.tgz">a tarball</a> that includes the .h files,
 the examples, and so on. The examples all make, even though there is no API implementation, based
 on a pseudo-implementation in the tarball; see make-examples-PLATFORM.sh. Note that this currently builds fine
 on the Macintosh and Ubuntu; help is definitely appreciated on making the build process
diff --git a/src/getdns/getdns.h b/src/getdns/getdns.h
index 9e8f3556..4c461d7c 100644
--- a/src/getdns/getdns.h
+++ b/src/getdns/getdns.h
@@ -39,6 +39,10 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct event_base;
 
 #define GETDNS_COMPILATION_COMMENT The API implementation should fill in something here, such as a compilation version string and date, and change it each time the API is compiled.
@@ -883,4 +887,7 @@ getdns_return_t
 getdns_extension_set_libevent_base(struct getdns_context *context,
     struct event_base *this_event_base);
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* GETDNS_H */