1 files changed, 41 insertions, 0 deletions
diff --git a/system/icu/tests.patch b/system/icu/tests.patch
new file mode 100644
index 000000000..499b8ec2e
--- /dev/null
+++ b/system/icu/tests.patch
@@ -0,0 +1,41 @@
+Upstream report: https://unicode-org.atlassian.net/browse/ICU-21793
+
+From 1b84ce27b41067e8f913da074917a1f6f9831fb9 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Lal?= <kapouer@melix.org>
+Date: Wed, 3 Nov 2021 02:31:18 +0100
+Subject: [PATCH] ICU-21793 Fix ucptrietest golden diff
+
+---
+ icu4c/source/tools/toolutil/toolutil.cpp | 13 +++++++------
+ 1 file changed, 7 insertions(+), 6 deletions(-)
+
+diff --git a/icu4c/source/tools/toolutil/toolutil.cpp b/icu4c/source/tools/toolutil/toolutil.cpp
+index 1fc68aa69c8..a9dc37377a8 100644
+--- a/tools/toolutil/toolutil.cpp
++++ b/tools/toolutil/toolutil.cpp
+@@ -228,18 +228,19 @@ uprv_compareGoldenFiles(
+     std::ifstream ifs(goldenFilePath, std::ifstream::in);
+     int32_t pos = 0;
+     char c;
+-    while ((c = ifs.get()) != std::char_traits<char>::eof() && pos < bufferLen) {
++    while (ifs.get(c) && pos < bufferLen) {
+         if (c != buffer[pos]) {
+             // Files differ at this position
+-            return pos;
++            break;
+         }
+         pos++;
+     }
+-    if (pos < bufferLen || c != std::char_traits<char>::eof()) {
+-        // Files are different lengths
+-        return pos;
++    if (pos == bufferLen && ifs.eof()) {
++        // Files are same lengths
++        pos = -1;
+     }
+-    return -1;
++    ifs.close();
++    return pos;
+ }
+ 
+ /*U_CAPI UDate U_EXPORT2