Fixes odd problem where rcp aborts on sh4 with gcc <= 3.0.2.
The preprocessed source that causes the error is
  size = ((((((stb).st_blksize > 0 ? (stb).st_blksize : 512))+((blksize)-1))/(blksize))*(blksize));
When the bug hits, size is set to a rediculously large number, causing
an allocation to fail.
See http://sources.redhat.com/ml/crossgcc/2003-07/msg00054.html

--- inetutils-1.4.2/rcp/util.c.old	Tue Jul  8 11:38:47 2003
+++ inetutils-1.4.2/rcp/util.c	Tue Jul  8 11:40:03 2003
@@ -130,6 +130,11 @@
 	return (status);
 }
 
+static size_t froundup(size_t x, size_t y)
+{
+	return (((x+(y-1))/y)*y);
+}
+
 BUF *
 allocbuf(BUF *bp, int fd, int blksize)
 {
@@ -140,10 +145,7 @@
 		run_err("fstat: %s", strerror(errno));
 		return (0);
 	}
-#ifndef roundup
-#  define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
-#endif
-	size = roundup(ST_BLKSIZE(stb), blksize);
+	size = froundup(ST_BLKSIZE(stb), blksize);
 	if (size == 0)
 		size = blksize;
 	if (bp->cnt >= size)