From 93d6fa53c9951563be3081a347cc4dc1917ad452 Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Mon, 13 Sep 2021 11:00:38 -0700
Subject: [PATCH] Disable -Woverflow errors for i386 for GCC 9.

GCC 9 warns about floating point constants overflowing for i386.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D26201
---
 share/mk/bsd.sys.mk | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index 304d8dd7d243..14b643fe0a20 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -196,6 +196,13 @@ CWARNFLAGS+=	-Wno-error=aggressive-loop-optimizations	\
 		-Wno-error=stringop-truncation
 .endif
 
+# GCC 9.2.0
+.if ${COMPILER_VERSION} >= 90200
+.if ${MACHINE_ARCH} == "i386"
+CWARNFLAGS+=	-Wno-error=overflow
+.endif
+.endif
+
 # GCC's own arm_neon.h triggers various warnings
 .if ${MACHINE_CPUARCH} == "aarch64"
 CWARNFLAGS+=	-Wno-system-headers