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>

1 files changed, 0 insertions, 1 deletions

diff --git a/gdbstub.c b/gdbstub.c
index 2b03ef2aa0..0aa081b13b 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -1504,7 +1504,6 @@ static int memtox(char *buf, const char *mem, int len)
 
 static const char *get_feature_xml(const char *p, const char **newp)
 {
-    extern const char *const xml_builtin[][2];
     size_t len;
     int i;
     const char *name;