From 27ca56d241356cb12aeb2f0a00e892d8b797edda Mon Sep 17 00:00:00 2001
From: Franklin Wei <git@fwei.tk>
Date: Sun, 27 Aug 2017 13:22:49 -0400
Subject: Implement warning silencing in a cleaner way

Change-Id: Iae6356c7e9e04f4e975b1995f77a35f6252293a4
---
 tools/configure | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/configure b/tools/configure
index 0db6501288..fd86d8a76d 100755
--- a/tools/configure
+++ b/tools/configure
@@ -4258,6 +4258,11 @@ else
    GCCOPTS="$GCCOPTS -Wno-shift-negative-value -Wno-unused-const-variable -Wno-nonnull-compare -Wno-tautological-compare"
  fi
 
+ if test "$gccnum" -ge "700"; then
+   # gcc 7 spews a bunch of warnings by default
+   GCCOPTS="$GCCOPTS -Wno-expansion-to-defined -Wimplicit-fallthrough=0"
+ fi
+
  case $prefix in
    ""|"$CROSS_COMPILE")
      # simulator
-- 
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