--- cmd/lefty/lefty.c.orig	Mon Mar 24 18:01:54 1997
+++ cmd/lefty/lefty.c	Tue Jan 27 20:25:04 1998
@@ -29,7 +29,11 @@
 #ifdef GNU
 #define canread(fp) ((fp)->_IO_read_end > (fp)->_IO_read_ptr)
 #else
+#ifdef __FreeBSD__
+#define canread(fp) ((fp)->_r >0)
+#else
 #define canread(fp) ((fp)->_cnt > 0)
+#endif
 #endif
 #endif