minor adjustements

README.md

@@ -16,16 +16,17 @@ Instead, sway's outputs are exposed by a VNC server running locally
 ([wayvnc](https://github.com/any1/wayvnc)).
 
 The VNC client in this repository's `vnc-client` folder is connected to the
-VNC server, while at the same time using the communications library _libfxlink_
+VNC server, while at the same time using the communications library libfxlink
 from the [fxSDK](https://gitea.planet-casio.com/Lephenixnoir/fxsdk) to discover
 calculators and exchange messages. It sends framebuffer updates and receives
 keyboard updates (which are, unsurprisingly, forwarded to the VNC server).
 
-The calculators themselves run [gint](https://gitea.planet-casio.com/Lephenixnoir/gint)
-2.10 using newly-added support for host → calculator USB communication. They
-"simply" show framebuffers they receive and send back keyboard updates so that
-the calculator keyboards can control the PC. Obviously the USB driver is not
-that simple... but this is invisible from the application code.
+The calculators themselves run the addin in the `cgvm-addin` folder, which is
+based on [gint](https://gitea.planet-casio.com/Lephenixnoir/gint) 2.10 with
+newly-added support for host → calculator USB communication. They "simply" show
+framebuffers they receive and send back keyboard updates so that the calculator
+keyboards can control the PC. Obviously the USB driver is not that simple...
+but this is invisible from the application code.
 
 The entire setup runs at about 30 FPS, which each frame taking about:
 

cgvm-addin/src/main.c

@@ -3,12 +3,15 @@
 #include <gint/usb.h>
 #include <gint/usb-ff-bulk.h>
 #include <gint/gint.h>
-#include <libprof.h>
-#include <fxlibc/printf.h>
 
 /* Debug mode (uses gint perf counters not committed to repository) */
 // #define DEBUG
 
+#ifdef DEBUG
+#include <libprof.h>
+#include <fxlibc/printf.h>
+#endif
+
 //---
 // Receiving and displaying video frames
 //---