Fix:

error: no member named 'setlocale' in namespace 'std'
error: use of undeclared identifier 'LC_ALL'
--- src/benchmark.cpp.orig	2026-04-16 08:54:25.000000000 -0500
+++ src/benchmark.cpp	2026-04-19 17:29:30.000000000 -0500
@@ -15,6 +15,8 @@
 #include <fzssh/client.hpp>
 #include <fzssh/privkey.hpp>
 
+#include <clocale>
+
 using namespace std::literals;
 
 class sftp : public fz::ssh::sftp::response_handler, fz::event_handler
--- src/chatter_client.cpp.orig	2026-04-16 08:54:25.000000000 -0500
+++ src/chatter_client.cpp	2026-04-19 17:29:38.000000000 -0500
@@ -12,6 +12,8 @@
 
 #include <fzssh/client.hpp>
 
+#include <clocale>
+
 using namespace std::literals;
 
 namespace {
--- src/client.cpp.orig	2026-04-16 08:54:25.000000000 -0500
+++ src/client.cpp	2026-04-19 17:29:19.000000000 -0500
@@ -15,6 +15,7 @@
 #include <fzssh/client.hpp>
 #include <fzssh/privkey.hpp>
 
+#include <clocale>
 #include <iostream>
 
 using namespace std::literals;