guestfs.h: Add missing extern keyword before event functions.

(cherry picked from commit 4b53a3737b76cad7aca407a0d9e37fed1d42ef69)

diff --git a/generator/generator_c.ml b/generator/generator_c.ml
index 1a16c9e..90b060c 100644 (file)
--- a/generator/generator_c.ml
+++ b/generator/generator_c.ml
@@ -427,13 +427,13 @@ typedef void (*guestfs_event_callback) (
 #endif
 
 #define LIBGUESTFS_HAVE_SET_EVENT_CALLBACK 1
-int guestfs_set_event_callback (guestfs_h *g,
-                                guestfs_event_callback cb,
-                                uint64_t event_bitmask,
-                                int flags,
-                                void *opaque);
+extern int guestfs_set_event_callback (guestfs_h *g,
+                                       guestfs_event_callback cb,
+                                       uint64_t event_bitmask,
+                                       int flags,
+                                       void *opaque);
 #define LIBGUESTFS_HAVE_DELETE_EVENT_CALLBACK 1
-void guestfs_delete_event_callback (guestfs_h *g, int event_handle);
+extern void guestfs_delete_event_callback (guestfs_h *g, int event_handle);
 
 /* Old-style event handling.  In new code use guestfs_set_event_callback. */
 #ifndef GUESTFS_TYPEDEF_LOG_MESSAGE_CB