--- a/thermferm/devices.c	Wed Apr 03 16:21:46 2024 +0200
+++ b/thermferm/devices.c	Wed Apr 03 16:53:22 2024 +0200
@@ -401,6 +401,7 @@
     uuid_t		uu;
 #ifdef HAVE_WIRINGPI_H
     int			pin;
+    char		buf[40];
 #endif
 
     /*