From 2aad0e433cedd9e30dc505b94fabb4bd36fe9cb5 Mon Sep 17 00:00:00 2001
From: Markus Scherer <markus.icu@gmail.com>
Date: Mon, 23 Oct 2000 22:03:24 +0000
Subject: [PATCH] ICU-544 safer handling of u+303e

X-SVN-Rev: 2763
---
 icu4c/source/tools/makeconv/gb18030/gbmake4.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/icu4c/source/tools/makeconv/gb18030/gbmake4.c b/icu4c/source/tools/makeconv/gb18030/gbmake4.c
index 12916fbc1c..f35b640f48 100644
--- a/icu4c/source/tools/makeconv/gb18030/gbmake4.c
+++ b/icu4c/source/tools/makeconv/gb18030/gbmake4.c
@@ -64,8 +64,8 @@ incFourGB18030(unsigned char bytes[4]) {
 static void
 incSkipFourGB18030(unsigned char bytes[4]) {
     incFourGB18030(bytes);
-    if(0==memcmp(bytes, skip303eBytes, 4)) {
-        /* make sure to skip the mismapped sequence */
+    if(0==memcmp(bytes, skip303eBytes, 4) && flags[0x303e]==1) {
+        /* make sure to skip the mismapped sequence if the data correctly maps U+303e==GB+a989 */
         incFourGB18030(bytes);
     }
 }