[libFuzzer] add hooks for strstr, strcasestr, strcasecmp, strncasecmp

llvm-svn: 275648
diff --git a/llvm/lib/Fuzzer/FuzzerDriver.cpp b/llvm/lib/Fuzzer/FuzzerDriver.cpp
index ba6edb3..f520a5c 100644
--- a/llvm/lib/Fuzzer/FuzzerDriver.cpp
+++ b/llvm/lib/Fuzzer/FuzzerDriver.cpp
@@ -309,6 +309,7 @@
   Options.UseIndirCalls = Flags.use_indir_calls;
   Options.UseTraces = Flags.use_traces;
   Options.UseMemcmp = Flags.use_memcmp;
+  Options.UseMemmem = Flags.use_memmem;
   Options.ShuffleAtStartUp = Flags.shuffle;
   Options.PreferSmall = Flags.prefer_small;
   Options.Reload = Flags.reload;