new file mode 100644
@@ -0,0 +1,52 @@
+From 2d5a94aeeab01f0448b5a0bb8d4a9a23a5b790d5 Mon Sep 17 00:00:00 2001
+From: Andrew Childs <lorne@cons.org.nz>
+Date: Sat, 28 Dec 2019 16:04:24 +0900
+Subject: [PATCH] json_writer: fix inverted sense in isAnyCharRequiredQuoting
+ (#1120)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This bug is only affects platforms where `char` is unsigned.
+
+When char is a signed type, values >= 0x80 are also considered < 0,
+and hence require escaping due to the < ' ' condition.
+
+When char is an unsigned type, values >= 0x80 match none of the
+conditions and are considered safe to emit without escaping.
+
+This shows up as a test failure:
+
+* Detail of EscapeSequenceTest/writeEscapeSequence test failure:
+/build/source/src/test_lib_json/main.cpp(3370): expected == result
+ Expected: '["\"","\\","\b","\f","\n","\r","\t","\u0278","\ud852\udf62"]
+ '
+ Actual : '["\"","\\","\b","\f","\n","\r","\t","ɸ","
From: Viktor Rosendahl <viktor.rosendahl@bmw.de> Applying this backported patch from upstream fixes the following BAT test failure: jsoncpp.jsoncpp_system_tests.TestJsoncpp.test_run_jsoncpp_test (from systemtests--bmt--BAT) : * Detail of EscapeSequenceTest/writeEscapeSequence test failure: /usr/src/debug/jsoncpp/1.9.2-r0/git/src/test_lib_json/main.cpp(3370): expected == result Expected: '["\"","\\","\b","\f","\n","\r","\t","\u0278","\ud852\udf62"] ' Actual : '["\"","\\","\b","\f","\n","\r","\t","ɸ","