lib Fuzzer FreeBSD support

Summary: Patch by David CARLIER

Reviewers: vitalybuka, kcc, dim, emaste, davide, morehouse, george.karpenkov

Reviewed By: morehouse

Subscribers: george.karpenkov, kubamracek, srhines, mgorny, emaste, krytarowski

Differential Revision: https://reviews.llvm.org/D41642

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@322380 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerExtFunctionsWeak.cpp b/FuzzerExtFunctionsWeak.cpp
index 5a90723..7c47dfa 100644
--- a/FuzzerExtFunctionsWeak.cpp
+++ b/FuzzerExtFunctionsWeak.cpp
@@ -13,7 +13,7 @@
 // to clients right now.
 //===----------------------------------------------------------------------===//
 #include "FuzzerDefs.h"
-#if LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FUCHSIA
+#if LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FUCHSIA || LIBFUZZER_FREEBSD
 
 #include "FuzzerExtFunctions.h"
 #include "FuzzerIO.h"
@@ -51,4 +51,4 @@
 
 } // namespace fuzzer
 
-#endif // LIBFUZZER_LINUX || LIBFUZZER_NETBSD
+#endif // LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FUSCHIA || LIBFUZZER_FREEBSD