Headers should bring in what they need so don't rely on getting
queue.h by side effects. This will help with clean-ups in the
following patches.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-25-alex.bennee@linaro.org>

diff --git a/plugins/plugin.h b/plugins/plugin.h
index 30e2299a54..9ed20b5c41 100644
--- a/plugins/plugin.h
+++ b/plugins/plugin.h
@@ -13,6 +13,7 @@
 #define PLUGIN_H
 
 #include <gmodule.h>
+#include "qemu/queue.h"
 #include "qemu/qht.h"
 
 #define QEMU_PLUGIN_MIN_VERSION 2
-- 
2.39.5