--- OLD/ppm/ppmtosixel.c	Thu Jan  1 00:00:00 1970
+++ NEW/ppm/ppmtosixel.c	Thu Jan  1 00:00:00 1970
@@ -115,11 +115,7 @@
     printf( "\"1;1\n" );  /* set aspect ratio 1:1 */
     }
 
-int
-WriteColorMap( chv, colors, maxval )
-    colorhist_vector chv;
-    int colors;
-    pixval maxval;
+int WriteColorMap(colorhist_vector chv, int colors, pixval maxval)
     {
     register int colornum;
     pixel p;