lib: add extern "C" {} blocks to all libfrr headers

These are necessary to use functions defined in these headers from C++.

Signed-off-by: David Lamparter <equinox@diac24.net>
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/if.h b/lib/if.h
index 822dbbaa54..6689769beb 100644
--- a/lib/if.h
+++ b/lib/if.h
@@ -27,6 +27,10 @@
 #include "qobj.h"
 #include "hook.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 DECLARE_MTYPE(IF)
 DECLARE_MTYPE(CONNECTED_LABEL)
 
@@ -545,4 +549,8 @@ void if_link_params_free(struct interface *);
 extern void if_cmd_init(void);
 extern const struct frr_yang_module_info frr_interface_info;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ZEBRA_IF_H */