--- a/CMakeLists.txt	Sat Oct 14 11:23:24 2023 +0200
+++ b/CMakeLists.txt	Sat Oct 14 16:10:14 2023 +0200
@@ -253,6 +253,7 @@
     ${SRCDIR}/analog/led.cpp
     ${SRCDIR}/analog/wallclock.cpp
     ${SRCDIR}/global.cpp
+    ${SRCDIR}/polyfit.cpp
   )
 
   set( HDRS
@@ -322,6 +323,7 @@
     ${SRCDIR}/analog/led.h
     ${SRCDIR}/analog/wallclock.h
     ${SRCDIR}/global.h
+    ${SRCDIR}/polyfit.h
   )
 
   set( UIS