cfg: Add check for newly used function in ELL

ELL has a new dependency on rawmemchr() which needs to be accounted for
at configure time.

Signed-off-by: Anuj Jain <anuj01.jain@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>

diff --git a/configure.ac b/configure.ac
index 7a09b7f..229d874 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -50,6 +50,8 @@ AC_ARG_ENABLE(threads, AC_HELP_STRING([--enable-threads],
 
 AC_CHECK_FUNCS(explicit_bzero)
 
+AC_CHECK_FUNCS(rawmemchr)
+
 AC_CHECK_FUNC(signalfd, dummy=yes,
                        AC_MSG_ERROR(signalfd support is required))