diff -ur xkanon-gtk/file.cc xkanon-gtk.wzero3/file.cc
--- xkanon-gtk/file.cc	2008-01-06 15:20:00.000000000 +0900
+++ xkanon-gtk.wzero3/file.cc	2010-07-30 01:21:53.000000000 +0900
@@ -1719,13 +1719,17 @@
 		lsrc += 2;
 	}
 	static void Copy1Pixel(const char*& lsrc, char*& ldest) {
+#ifdef __NetBSD__
+		memcpy(ldest, lsrc, 3);
+#else
 #ifdef WORDS_BIGENDIAN
 		ldest[0] = lsrc[0];
 		ldest[1] = lsrc[1];
 		ldest[2] = lsrc[2];
-#else /* LITTLE ENDIAN / intel architecture */
+#else
 		*(int*)ldest = *(int*)lsrc; ldest[3]=0;
 #endif
+#endif
 		lsrc += 3; ldest += 4;
 	}
 	static int ProcessBlockSize(void) {
@@ -1862,6 +1866,9 @@
 		lsrc += 2;
 	}
 	static void Copy1Pixel(const char*& lsrc, char*& ldest) {
+#ifdef __NetBSD__
+		memcpy(ldest, lsrc, 3);
+#else
 #ifdef WORDS_BIGENDIAN
 		ldest[0] = lsrc[0];
 		ldest[1] = lsrc[1];
@@ -1869,6 +1876,7 @@
 #else /* LITTLE ENDIAN / intel architecture */
 		*(int*)ldest = *(int*)lsrc; ldest[3]=0;
 #endif
+#endif
 		lsrc += 3; ldest += 4;
 	}
 	static int ProcessBlockSize(void) {
diff -ur xkanon-gtk/file.h xkanon-gtk.wzero3/file.h
--- xkanon-gtk/file.h	2008-01-06 15:20:00.000000000 +0900
+++ xkanon-gtk.wzero3/file.h	2010-07-30 01:21:53.000000000 +0900
@@ -44,6 +44,32 @@
 #  endif
 #endif
 
+#ifdef __NetBSD__
+
+#define INT_SIZE sizeof(int)
+
+inline int read_little_endian_int(const char* buf) {
+	return le32dec(buf);
+}
+
+inline int read_little_endian_short(const char* buf) {
+	return le16dec(buf);
+}
+
+inline int write_little_endian_int(char* buf, int number) {
+	int c = le32dec(buf);
+	le32enc(buf, number);
+	return c;
+}
+
+inline int write_little_endian_short(char* buf, int number) {
+	int c = le16dec(buf);
+	le16enc(buf, number);
+	return c;
+}
+
+#else // !__NetBSD__
+
 #ifdef WORDS_BIGENDIAN
 
 #define INT_SIZE 4
@@ -103,6 +129,7 @@
 	int c = *(short*)buf; *(short*)buf = number; return c;
 }
 #endif // WORDS_BIGENDIAN
+#endif // __NetBSD__
 
 /*********************************************
 **  FILESEARCH:
diff -ur xkanon-gtk/image_di_Xbpp.cc xkanon-gtk.wzero3/image_di_Xbpp.cc
--- xkanon-gtk/image_di_Xbpp.cc	2008-01-06 15:20:00.000000000 +0900
+++ xkanon-gtk.wzero3/image_di_Xbpp.cc	2010-07-30 01:28:11.000000000 +0900
@@ -181,9 +181,9 @@
 		char* mask_line = mask + i*width;
 		char* d = dest_pt; char* s = src_pt;
 		for (j=0; j<width; j++) {
-			char mask_char = *mask_line++;
+			unsigned char mask_char = *mask_line++;
 			if (mask_char) {
-				if (mask_char == -1) {
+				if (mask_char == 0xff) {
 					Copy1Pixel(d,s);
 				} else {
 					SetMiddleColor(d, s, mask_char);
@@ -224,9 +224,9 @@
 		char* mask_line = mask + (i+src_y)*swidth + src_x;
 		char* d = dest_pt; char* s = src_pt;
 		for (j=0; j<width; j++) {
-			char mask_char = *mask_line++;
+			unsigned char mask_char = *mask_line++;
 			if (mask_char) {
-				if (mask_char == -1) {
+				if (mask_char == 0xff) {
 					Copy1Pixel(d,s);
 				} else {
 					SetMiddleColor(d, s, mask_char);
@@ -538,9 +538,9 @@
 		char* mask_line = mask + (i+src_y)*swidth + src_x;
 		char* d = dest_pt; char* s = src_pt;
 		for (j=0; j<width; j++) {
-			char mask_char = *mask_line++;
+			unsigned char mask_char = *mask_line++;
 			if (mask_char) {
-				if (mask_char == -1) {
+				if (mask_char == 0xff) {
 					SetMiddleColorWithTable(d, s, table);
 				} else {
 					int tmp; Copy1Pixel((char*)&tmp, d);
diff -ur xkanon-gtk/image_di_impl.h xkanon-gtk.wzero3/image_di_impl.h
--- xkanon-gtk/image_di_impl.h	2009-08-30 08:30:51.000000000 +0900
+++ xkanon-gtk.wzero3/image_di_impl.h	2010-07-30 01:28:42.000000000 +0900
@@ -276,9 +276,9 @@
 			char* m = mask + i*mbpl;
 			memcpy(masked_line, dest+i*dbpl, width*ByPP);
 			for (j=0; j<width; j++) {
-				char mask_char = *m;
+				unsigned char mask_char = *m;
 				if (mask_char) {
-					if (mask_char == -1) {
+					if (mask_char == 0xff) {
 						Copy1Pixel(d, s);
 					 }else {
 						SetMiddleColor(d, s, mask_char);
diff -ur xkanon-gtk/image_di_selimpl1.cc xkanon-gtk.wzero3/image_di_selimpl1.cc
--- xkanon-gtk/image_di_selimpl1.cc	2009-08-30 08:35:16.000000000 +0900
+++ xkanon-gtk.wzero3/image_di_selimpl1.cc	2010-07-30 01:26:59.000000000 +0900
@@ -135,9 +135,9 @@
 		d = dest_buf;
 		m = mask;
 		for (j=0; j<width; j++) {
-			char mask_char = IsMask ? *m : -1;
+			unsigned char mask_char = IsMask ? *m : 0xff;
 			if (mask_char) {
-				if (mask_char == -1) {
+				if (mask_char == 0xff) {
 					Copy1Pixel(d, s);
 				} else {
 					SetMiddleColor(d,s, mask_char);
@@ -709,9 +709,9 @@
 					if (xi+4 < width) xlen = 4;
 					else xlen = width-xi;
 					for (xj=0; xj<xlen; xj++) {
-						char mask_char = IsMask ? *m : -1;
+						unsigned char mask_char = IsMask ? *m : 0xff;
 						if (mask_char) {
-							if (mask_char == -1) Copy1Pixel(d,s);
+							if (mask_char == 0xff) Copy1Pixel(d,s);
 							else SetMiddleColor( d, s, mask_char);
 						}
 						d += ByPP; s += ByPP; m++;
@@ -794,9 +794,9 @@
 				m = mask - draw_points[i];
 			}
 			for (j=0; j<height; j++) {
-				char mask_char = IsMask ? *m : -1;
+				unsigned char mask_char = IsMask ? *m : 0xff;
 				if (mask_char) {
-					if (mask_char == -1) {
+					if (mask_char == 0xff) {
 						Copy1Pixel(d, s);
 					} else {
 						SetMiddleColor(d,s, mask_char);
@@ -818,9 +818,9 @@
 				m = mask - draw_points[i]*src.width;
 			}
 			for (j=0; j<width; j++) {
-				char mask_char = IsMask ? *m : -1;
+				unsigned char mask_char = IsMask ? *m : 0xff;
 				if (mask_char) {
-					if (mask_char == -1) {
+					if (mask_char == 0xff) {
 						Copy1Pixel(d, s);
 					} else {
 						SetMiddleColor(d, s, mask_char);
diff -ur xkanon-gtk/image_di_selimpl3.cc xkanon-gtk.wzero3/image_di_selimpl3.cc
--- xkanon-gtk/image_di_selimpl3.cc	2009-08-30 08:12:54.000000000 +0900
+++ xkanon-gtk.wzero3/image_di_selimpl3.cc	2010-07-30 01:27:29.000000000 +0900
@@ -82,9 +82,9 @@
 			char* s = src_pt + lf * ByPP;
 			char* m = mask_pt + lf;
 			int j; for (j=0; j<dw; j++) {
-				char mask_char = IsMask ? *m : -1;
+				unsigned char mask_char = IsMask ? *m : 0xff;
 				if (mask_char) {
-					if (mask_char == -1) Copy1Pixel(d ,s);
+					if (mask_char == 0xff) Copy1Pixel(d ,s);
 					else SetMiddleColor(d, s, mask_char);
 				}
 				d+= ByPP; s+=ByPP; if (IsMask) m++;
@@ -101,9 +101,9 @@
 			char* s = src_pt + lf*src.bpl;
 			char* m = mask_pt + lf*src.width;
 			int j; for (j=0; j<dw; j++) {
-				char mask_char = IsMask ? *m : -1;
+				unsigned char mask_char = IsMask ? *m : 0xff;
 				if (mask_char) {
-					if (mask_char == -1) Copy1Pixel(d,s);
+					if (mask_char == 0xff) Copy1Pixel(d,s);
 					else SetMiddleColor(d, s, mask_char);
 				}
 				d += dest.bpl; s += src.bpl; if (IsMask) m += src.width;
diff -ur xkanon-gtk/senario_flags.cc xkanon-gtk.wzero3/senario_flags.cc
--- xkanon-gtk/senario_flags.cc	2008-01-06 15:20:00.000000000 +0900
+++ xkanon-gtk.wzero3/senario_flags.cc	2010-07-30 01:21:53.000000000 +0900
@@ -254,7 +254,7 @@
 inline int strwlen(const char* s) {
 	int l=0;
 	while(*s) { 
-		if (*s < 0 && s[1] != 0) s++;
+		if ((*s & 0x80) != 0 && s[1] != 0) s++;
 		l++; s++;
 	}
 	return l;
@@ -262,7 +262,7 @@
 inline int strwpos(const char* s, int p) {
 	const char* s_orig = s;
 	while(*s && p) {
-		if (*s < 0 && s[1] != 0) s++;
+		if ((*s & 0x80) != 0 && s[1] != 0) s++;
 		s++; p--;
 	}
 	return s - s_orig;
@@ -270,7 +270,7 @@
 }
 inline void strwfix(char* s, int len) {
 	while(*s && len) {
-		if (*s < 0 && s[1] != 0) {
+		if ((*s & 0x80) != 0 && s[1] != 0) {
 			if (len <= 1) break;
 			s++; len--;
 		}
@@ -501,7 +501,7 @@
 			strcpy(tmp, StrVar(arg2));
 			int l = strwlen(tmp); if (l == 0) l=1;
 			l = strwpos(tmp,l-1);
-			if (tmp[l] < 0) SetVar(arg1, (int(tmp[l])&0xff) | ((int(tmp[l+1])&0xff)<<8));
+			if ((tmp[l] & 0x80) != 0) SetVar(arg1, (int(tmp[l])&0xff) | ((int(tmp[l+1])&0xff)<<8));
 			else SetVar(arg1, int(tmp[l])&0xff);
 			tmp[l] = 0;
 			SetStrVar(arg2, tmp);
diff -ur xkanon-gtk/window_text.cc xkanon-gtk.wzero3/window_text.cc
--- xkanon-gtk/window_text.cc	2009-08-30 08:28:52.000000000 +0900
+++ xkanon-gtk.wzero3/window_text.cc	2010-07-30 01:21:53.000000000 +0900
@@ -624,7 +624,7 @@
 	if (drawed_text[text_pos] == 0) {
 		if (twinfo) twinfo->End();
 	}
-	if (drawed_text[text_pos] < 0 && drawed_text[text_pos+1] == 0) {
+	if ((drawed_text[text_pos] & 0x80) != 0 && drawed_text[text_pos+1] == 0) {
 		text_pos++;
 		if (twinfo) twinfo->End();
 		return;
@@ -641,7 +641,7 @@
 	}
 	int is_kin = NO_KINSOKU;
 	// 1バイト文字 : 描画しない
-	if (drawed_text[text_pos] > 0) {
+	if (drawed_text[text_pos] > 0 && (drawed_text[text_pos] & 0x80) == 0) {
 		// 改行：色も元に戻す
 		if (drawed_text[text_pos] == '\n') {
 			text_x_pos = text_x_first;