Use gcc warning flag -Wnested-externs
If the compiler supports the warning flag -Wnested-externs, use it.
Avoid the only warning by moving the declaration of xml_builtin to a
more proper place.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/gdbstub.h b/gdbstub.h
index 219abda..ce5fdcc 100644
--- a/gdbstub.h
+++ b/gdbstub.h
@@ -38,4 +38,7 @@
int gdbserver_start(const char *port);
#endif
+/* in gdbstub-xml.c, generated by feature_to_c.sh */
+extern const char *const xml_builtin[][2];
+
#endif
