--- rrdtool-1.4.8.orig/configure.ac
+++ rrdtool-1.4.8/configure.ac
@@ -280,9 +280,6 @@
 #include <fcntl.h>])
 AC_CHECK_FUNCS(posix_fadvise)
 
-dnl can we use posix_fallocate
-AC_CHECK_FUNCS(posix_fallocate)
-
 CONFIGURE_PART(Libintl Processing)
 
 AM_GNU_GETTEXT_VERSION(0.17)