diff --git a/builds/unix/configure.raw b/builds/unix/configure.raw
index 886d50b6f..864eaf119 100644
--- a/builds/unix/configure.raw
+++ b/builds/unix/configure.raw
@@ -163,9 +163,6 @@ fi
 AC_SUBST([FTSYS_SRC])
 
 
-AC_CHECK_FUNCS([memcpy memmove])
-
-
 # get compiler flags right
 #
 #   We try to make the compiler work for C99-strict source.  Even if the