From fca9bc45e22ccbfc47506a7216db9a13ea6fdabf Mon Sep 17 00:00:00 2001
From: Nicolas Williams <nico@twosigma.com>
Date: Wed, 13 Apr 2016 13:52:03 -0500
Subject: [PATCH] Add --with-hcrypto-default-backend

---
 cf/crypto.m4 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cf/crypto.m4 b/cf/crypto.m4
index b3a1bd0c3..075568b1b 100644
--- a/cf/crypto.m4
+++ b/cf/crypto.m4
@@ -64,6 +64,11 @@ m4_define([test_body], [
 		RC4(0, 0, 0, 0);])
 
 AC_DEFUN([KRB_CRYPTO],[
+AC_ARG_WITH([hcrypto-default-backend],
+            AS_HELP_STRING([--with-hcrypto-default-backend=cc|pkcs11_hcrypto|ossl|w32crypto|hcrypto],
+                           [specify the default hcrypto backend]),
+            [CFLAGS="${CFLAGS} -DHCRYPTO_DEF_PROVIDER=${withval}"],
+            [])
 AC_WITH_ALL([openssl])
 
 AC_MSG_CHECKING([for crypto library])