From e38f554cd4b956f6eedd56c7a76a3ba7c84ad824 Mon Sep 17 00:00:00 2001
From: Steffan Karger <steffan@karger.me>
Date: Tue, 1 Apr 2014 00:33:55 +0200
Subject: [PATCH] configure.ac: use CPPFLAGS for SSL_OP_NO_TICKET check

AC_EGREP_CPP uses CPPFLAGS, not CFLAGS. Make sure the macro can find
OpenSSL by temporarily adding OPENSSL_CRYPTO_FLAGS to CPPFLAGS.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Heiko Hund <heiko.hund@sophos.com>
Message-Id: <5339EFFC.6090908@karger.me>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8419
Signed-off-by: Gert Doering <gert@greenie.muc.de>
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 7e94280df..0c2abb9d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -794,6 +794,8 @@ if test "${have_openssl_crypto}" = "yes"; then
 fi
 
 if test "${have_openssl_ssl}" = "yes"; then
+    saved_CPPFLAGS="${CPPFLAGS}"
+    CPPFLAGS="${CPPFLAGS} ${OPENSSL_CRYPTO_CFLAGS}"
     AC_MSG_CHECKING([for SSL_OP_NO_TICKET flag in OpenSSL])
     AC_EGREP_CPP(have_ssl_op_no_ticket, [
     #include <openssl/ssl.h>
@@ -806,6 +808,7 @@ if test "${have_openssl_ssl}" = "yes"; then
         AC_MSG_RESULT([no])
         AC_ERROR([OpenVPN 2.4+ requires SSL_OP_NO_TICKET in OpenSSL])
     ])
+    CPPFLAGS="${saved_CPPFLAGS}"
 fi
 
 AC_ARG_VAR([POLARSSL_CFLAGS], [C compiler flags for polarssl])
-- 
2.47.2