Update icu4c/source/common/putil.cpp

Co-authored-by: Markus Scherer <[email protected]>
unicode-org · Oct 12, 2023 · 119a18a · 119a18a
1 parent ec07e58
commit 119a18a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/icu4c/source/common/putil.cpp b/icu4c/source/common/putil.cpp
@@ -1180,7 +1180,10 @@ uprv_tzname(int n)
             // which will not have "/zoneinfo/" in the path.
             // Therefore if we fail, we fall back to read the link which is
             // /var/db/timezone/zoneinfo/Australia/Melbourne
-            if (tzZoneInfoTailPtr == nullptr) {
+            // We also fall back to reading the link if the realpath leads to something like
+            // /usr/share/zoneinfo/posixrules
+            if (tzZoneInfoTailPtr == nullptr ||
+                    uprv_strcmp(tzZoneInfoTailPtr + tzZoneInfoTailLen, "posixrules") == 0) {
                 ssize_t size = readlink(TZDEFAULT, gTimeZoneBuffer, sizeof(gTimeZoneBuffer)-1);
                 if (size > 0) {
                     gTimeZoneBuffer[size] = 0;