diff --git a/comms/flrig/files/patch-src_main.cxx b/comms/flrig/files/patch-src_main.cxx
new file mode 100644
index 000000000000..ec83afcbd14c
--- /dev/null
+++ b/comms/flrig/files/patch-src_main.cxx
@@ -0,0 +1,23 @@
+- fix build on 14 with clang-16 because std::ostringstream::streampos
+- doesn't exist there.
+- using the C++ standard std::streampos instead.
+
+--- src/main.cxx.orig	2023-07-16 15:55:45 UTC
++++ src/main.cxx
+@@ -21,6 +21,7 @@
+ #include "config.h"
+ 
+ #include <stdlib.h>
++#include <ios>
+ #include <iostream>
+ #include <fstream>
+ #include <sstream>
+@@ -313,7 +314,7 @@ void rotate_log(std::string filename)
+ {
+ 	const int n = 5; // rename existing log files to keep up to 5 old versions
+ 	ostringstream oldfn, newfn;
+-	ostringstream::streampos p;
++	streampos p;
+ 
+ 	oldfn << filename << '.';
+ 	newfn << filename << '.';