1 files changed, 16 insertions, 0 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StringExtras.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StringExtras.h
index 1c23390d55..559e3f2ffe 100644
--- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StringExtras.h
+++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StringExtras.h
@@ -85,4 +85,20 @@ inline int strcasecmp(const char* s1, const char* s2)
 
 #endif
 
+#if PLATFORM(WIN_OS) || PLATFORM(LINUX)
+
+inline char* strnstr(const char* buffer, const char* target, size_t bufferLength)
+{
+    size_t targetLength = strlen(target);
+    if (targetLength == 0)
+        return const_cast<char*>(buffer);
+    for (const char* start = buffer; *start && start + targetLength <= buffer + bufferLength; start++) {
+        if (*start == *target && strncmp(start + 1, target + 1, targetLength - 1) == 0)
+            return const_cast<char*>(start);
+    }
+    return 0;
+}
+
+#endif
+
 #endif // WTF_StringExtras_h