--- lpstyl.c.orig	2000-08-27 20:52:32.000000000 +0200
+++ lpstyl.c	2005-08-04 22:43:45.000000000 +0200
@@ -259,8 +259,8 @@
 void cleanup();
 void usage(void);
 int readFileHeader(void);
-size_t readFileScanline(char *bufK, char *bufC, char *bufM, char *bufY);
-size_t appendEncode(size_t length, char *in, char *last, char *out);
+size_t readFileScanline(unsigned char *bufK, unsigned char *bufC, unsigned char *bufM, unsigned char *bufY);
+size_t appendEncode(size_t length, unsigned char *in, unsigned char *last, unsigned char *out);
 
 /* Variables printStdin() needs which can also be set by arguments */
 long height = -1, width = -1;
@@ -939,7 +939,7 @@
 }
 
 
-size_t readFileScanline(char *bufK, char *bufC, char *bufM, char *bufY)
+size_t readFileScanline(unsigned char *bufK, unsigned char *bufC, unsigned char *bufM, unsigned char *bufY)
 {
 	static char *inputBuf = nil;
 	static size_t inputSize = 0;
@@ -1037,10 +1037,10 @@
 					if((i & 0x03) == 0)
 					{
 						/* write the output */
-						*((unsigned char *)bufK)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-						*((unsigned char *)bufY)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-						*((unsigned char *)bufM)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-						*((unsigned char *)bufC)++ = cmyk & 0x000000FF;
+						*(bufK)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+						*(bufY)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+						*(bufM)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+						*(bufC)++ = cmyk & 0x000000FF;
 						cmyk = 0;
 					}
 				}
@@ -1053,10 +1053,10 @@
 				}
 				
 				/* write the final part */
-				*((unsigned char *)bufK)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-				*((unsigned char *)bufY)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-				*((unsigned char *)bufM)++ = cmyk & 0x000000FF;		cmyk >>= 8;
-				*((unsigned char *)bufC)++ = cmyk & 0x000000FF;
+				*(bufK)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+				*(bufY)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+				*(bufM)++ = cmyk & 0x000000FF;		cmyk >>= 8;
+				*(bufC)++ = cmyk & 0x000000FF;
 			}
 			else
 			{
@@ -1100,9 +1100,9 @@
 	return(result);
 }
 
-size_t appendEncode(size_t length, char *in, char *last, char *out)
+size_t appendEncode(size_t length, unsigned char *in, unsigned char *last, unsigned char *out)
 {
-	static char delta[1024];	/* bigger than we'll ever need */
+	static unsigned char delta[1024]; /* bigger than we'll ever need */
 	size_t result = 0;
 	
 	if(last)