From 72c21feff6e53e273fde99862baf086137cc98e7 Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Wed, 24 Apr 2019 08:44:36 -0700
Subject: [PATCH] Make chars unsigned by default, matching ESP8266 (#6013)

Force GCC to run with -funsigned-char during host tests  to make
the PC match the default behaviour used by the xtensa GCC port.

As noted in #6010.  Thanks @MichaelBrunn3r
---
 tests/host/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/host/Makefile b/tests/host/Makefile
index df5393f07..1602eed79 100644
--- a/tests/host/Makefile
+++ b/tests/host/Makefile
@@ -145,8 +145,8 @@ FLAGS += -DLWIP_IPV6=0
 FLAGS += -DHOST_MOCK=1
 FLAGS += -DNONOSDK221=1
 FLAGS += $(MKFLAGS)
-CXXFLAGS += -std=c++11 -fno-rtti $(FLAGS)
-CFLAGS += -std=c99 $(FLAGS)
+CXXFLAGS += -std=c++11 -fno-rtti $(FLAGS) -funsigned-char
+CFLAGS += -std=c99 $(FLAGS) -funsigned-char
 LDFLAGS += -coverage $(OPTZ) -g $(M32)
 VALGRINDFLAGS += --leak-check=full --track-origins=yes --error-limit=no --show-leak-kinds=all --error-exitcode=999
 CXXFLAGS += -Wno-error=format-security # cores/esp8266/Print.cpp:42:24:   error: format not a string literal and no format arguments [-Werror=format-security] -- (os_printf_plus(not_the_best_way))