Add a dummy FlagSaver class.

Summary: Add a declaration to mock out FlagSaver on platforms that don't support gflags.

Reviewed By: ivmaykov, yfeldblum

Differential Revision: D3620421

fbshipit-source-id: c1047f34f384f34276b18f53e966a65cdd5c8075

diff --git a/folly/portability/GFlags.h b/folly/portability/GFlags.h
index 9d88a408a2447d72f314cde3fbab0f0b237ee945..634e5b286911f4d54c0267a2fe9476729484b45a 100644 (file)
--- a/folly/portability/GFlags.h
+++ b/folly/portability/GFlags.h
@@ -58,6 +58,11 @@
   FOLLY_DEFINE_FLAG(unsigned long long, U64, _name, _default)
 #define DEFINE_string(_name, _default, _description) \
   FOLLY_DEFINE_FLAG(std::string, S, _name, _default)
+
+namespace google {
+class FlagSaver {};
+}
+
 #else
 #include <gflags/gflags.h>
 #endif