From 5f743335599bbe0ec50a9b556da131db93ee181f Mon Sep 17 00:00:00 2001
From: Nick Exton <NExton@sypaq.com.au>
Date: Thu, 25 Nov 2021 12:25:00 +1100
Subject: [PATCH] waf: only enable -Wsizeof-pointer-div for gcc v8.4 or greater

The -Wsizeof-pointer-div option doesn't exist in gcc v7.5, which is the
version used by Ubuntu 18.04 LTS. It does exist in v8.4.
---
 Tools/ardupilotwaf/boards.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Tools/ardupilotwaf/boards.py b/Tools/ardupilotwaf/boards.py
index e0fe4937a9..a07f48f6be 100644
--- a/Tools/ardupilotwaf/boards.py
+++ b/Tools/ardupilotwaf/boards.py
@@ -319,6 +319,9 @@ class Board:
                     '-Werror=implicit-fallthrough',
                     '-Werror=maybe-uninitialized',
                     '-Werror=duplicated-cond',
+                ]
+            if self.cc_version_gte(cfg, 8, 4):
+                env.CXXFLAGS += [
                     '-Werror=sizeof-pointer-div',
                 ]