1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps.h b/sysdeps.h
index 5ba85b4d..22099e2e 100644
--- a/sysdeps.h
+++ b/sysdeps.h
@@ -789,6 +789,9 @@ static inline void disable_tcp_nagle(borrowed_fd fd) {
 // configured to drop after 10 missed keepalives. Returns true on success.
 bool set_tcp_keepalive(borrowed_fd fd, int interval_sec);
 
+// Returns a human-readable OS version string.
+extern std::string GetOSVersion(void);
+
 #if defined(_WIN32)
 // Win32 defines ERROR, which we don't need, but which conflicts with google3 logging.
 #undef ERROR