https://bugs.gentoo.org/886139

--- a/spicefile/sp2sp.c
+++ b/spicefile/sp2sp.c
@@ -234,7 +234,7 @@
 		}
 		of = stdout;
 	} else {
-		of = (FILE *)fopen64(outfilename, "w"); /* DJW: why is the cast needed? */
+		of = fopen(outfilename, "w");
 		if(!of) {
 		if(errno)
 			perror(outfilename);