diff --git a/configure.ac b/configure.ac
index c18ad96c..b121515f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,9 +62,6 @@ AC_DISABLE_STATIC
 AC_PROG_LIBTOOL
 AC_SYS_LARGEFILE
 
-# Check for common libc routines redefined by os.h
-AC_CHECK_FUNCS([strlcpy strlcat strndup], [], [])
-
 # Platform specific settings
 case $host_os in
   *linux*)