--- a/xdwaddatn2.cpp	Sat Mar 24 08:51:45 2018 +0900
+++ b/xdwaddatn2.cpp	Tue Apr 03 00:11:01 2018 +0900
@@ -1,14 +1,14 @@
 /* Makefile
-debug: xdwaddatn2.c
+debug: xdwaddatn2.cpp
 	#rm -rf tempXXXX
 	#cls
-	g++ -g -O0 -I. xdwaddatn2.c xdwapi.lib
+	gcc -g -O0 -I. xdwaddatn2.cpp xdwapi.lib
 	#date
 	#./a.exe -m -i target.xdw
 	#date
 
-release: xdwaddatn2.c
-	g++ -I. xdwaddatn2.c xdwapi.lib -static -o xdwaddatn2.exe
+release: xdwaddatn2.cpp
+	gcc -I. xdwaddatn2.cpp xdwapi.lib -static -o xdwaddatn2.exe
 	strip xdwaddatn2.exe
 
 clean:
@@ -28,7 +28,6 @@
 
 #define MAXCOL  1024
 #define MAXLINE 9999
-#define BLOCKSZ   64
 
 void print_error( int code ) {
 	switch ( code ) {