X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/de0df8b16259458c78c742b5dbedd4ac90856285..969120070c4940a8c317f4fe6c74b405fd495f08:/Bootloaders/CDC/BootloaderCDC.h

diff --git a/Bootloaders/CDC/BootloaderCDC.h b/Bootloaders/CDC/BootloaderCDC.h
index b5d5e0b02..89f90a6a2 100644
--- a/Bootloaders/CDC/BootloaderCDC.h
+++ b/Bootloaders/CDC/BootloaderCDC.h
@@ -51,6 +51,12 @@
 
 		#include <LUFA/Drivers/USB/USB.h>
 		#include <LUFA/Drivers/Board/LEDs.h>
+		#include <LUFA/Platform/Platform.h>
+
+	/* Preprocessor Checks: */
+		#if !defined(__OPTIMIZE_SIZE__)
+			#error This bootloader requires that it be optimized for size, not speed, to fit into the target device. Change optimization settings and try again.
+		#endif
 
 	/* Macros: */
 		/** Version major of the CDC bootloader. */