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-rw-r--r--icu59.diff28
1 files changed, 28 insertions, 0 deletions
diff --git a/icu59.diff b/icu59.diff
new file mode 100644
index 000000000000..59117a54dbe6
--- /dev/null
+++ b/icu59.diff
@@ -0,0 +1,28 @@
+diff --git a/src/i18n.cc b/src/i18n.cc
+index 79a70daf62..7a8d847034 100644
+--- a/src/i18n.cc
++++ b/src/i18n.cc
+@@ -28,7 +28,7 @@
+ #include "unicode/rbbi.h"
+ #include "unicode/smpdtfmt.h"
+ #include "unicode/timezone.h"
+-#include "unicode/uchar.h"
++#include "unicode/ustring.h"
+ #include "unicode/ucol.h"
+ #include "unicode/ucurr.h"
+ #include "unicode/unum.h"
+@@ -180,7 +180,13 @@ void SetResolvedDateSettings(Isolate* isolate,
+ icu::UnicodeString canonical_time_zone;
+ icu::TimeZone::getCanonicalID(time_zone, canonical_time_zone, status);
+ if (U_SUCCESS(status)) {
+- if (canonical_time_zone == UNICODE_STRING_SIMPLE("Etc/GMT")) {
++ // In CLDR (http://unicode.org/cldr/trac/ticket/9943), Etc/UTC is made
++ // a separate timezone ID from Etc/GMT even though they're still the same
++ // timezone. We'd not have "Etc/GMT" here because we canonicalize it and
++ // other GMT-variants to "UTC" in intl.js and "UTC" is turned to "Etc/UTC"
++ // by ICU before getting here.
++ DCHECK(canonical_time_zone != UNICODE_STRING_SIMPLE("Etc/GMT"));
++ if (canonical_time_zone == UNICODE_STRING_SIMPLE("Etc/UTC")) {
+ JSObject::SetProperty(
+ resolved, factory->NewStringFromStaticChars("timeZone"),
+ factory->NewStringFromStaticChars("UTC"), SLOPPY).Assert();