From 5e428810893515156023f647251a0d094562480c Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordu.net>
Date: Thu, 11 Nov 2010 11:02:14 +0100
Subject: [PATCH] Build even when not configured with `--enable-tls'.

---
 lib/Makefile.am  | 10 +++++++---
 lib/configure.ac | 22 ++++++++++------------
 lib/packet.c     |  6 +++++-
 3 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/lib/Makefile.am b/lib/Makefile.am
index ca7de1f..fb1f0ae 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -14,15 +14,19 @@ libradsec_la_SOURCES = \
 	err.c \
 	packet.c \
 	radsec.c \
-	request.c \
-	tls.c
+	request.c
 
 libradsec_la_SOURCES += \
 	rsp_debug.c \
 	rsp_hash.c \
 	rsp_list.c \
-	rsp_tlscommon.c \
 	rsp_util.c
 
+if RS_ENABLE_TLS
+libradsec_la_SOURCES += \
+	tls.c \
+	rsp_tlscommon.c
+endif
+
 libradsec_la_LDFLAGS = -version-info 0:0:0
 libradsec_la_CFLAGS = $(CFLAGS) -DDEBUG -DDEBUG_LEVENT
diff --git a/lib/configure.ac b/lib/configure.ac
index 2039233..de02a4e 100644
--- a/lib/configure.ac
+++ b/lib/configure.ac
@@ -11,13 +11,6 @@ AC_PROG_LIBTOOL
 # Checks for programs.
 AC_PROG_CC
 
-# Enable-knobs.
-AH_TEMPLATE([RS_ENABLE_TLS], [TLS (RadSec) enabled])
-AH_TEMPLATE([RADPROT_TLS], [])
-AC_ARG_ENABLE([tls], AS_HELP_STRING([--enable-tls], [enable TLS (RadSec)]),
-    [AC_DEFINE([RS_ENABLE_TLS])
-     AC_DEFINE([RADPROT_TLS])])
-
 # Checks for libraries.
 AC_CHECK_LIB([confuse], [cfg_init],,
     AC_MSG_ERROR([required library libconfuse not found]))
@@ -25,11 +18,16 @@ AC_CHECK_LIB([event_core], [event_get_version],,
     AC_MSG_ERROR([required library libevent_core not found]))
 AC_CHECK_LIB([freeradius-radius], [rad_alloc],,
     AC_MSG_ERROR([required library libfreeradius-radius not found]))
-dnl TODO: Only do this if --enable-tls or --enable-dtls.
-#AC_CHECK_LIB([ssl], [SSL_new],,
-#    AC_MSG_ERROR([required library libssl not found]))
-AC_CHECK_LIB([event_openssl], [bufferevent_openssl_socket_new],,
-    AC_MSG_ERROR([required library event_openssl not found]))
+
+# Enable-knobs.
+AH_TEMPLATE([RS_ENABLE_TLS], [TLS (RadSec) enabled])
+AH_TEMPLATE([RADPROT_TLS], [])
+AC_ARG_ENABLE([tls], AS_HELP_STRING([--enable-tls], [enable TLS (RadSec)]),
+    [AC_CHECK_LIB([event_openssl], [bufferevent_openssl_socket_new],,
+         AC_MSG_ERROR([required library event_openssl not found]))
+     AC_DEFINE([RS_ENABLE_TLS])
+     AC_DEFINE([RADPROT_TLS])])
+AM_CONDITIONAL([RS_ENABLE_TLS], [test "${enable_tls+set}" = set])
 
 # Checks for header files.
 AC_CHECK_HEADERS(
diff --git a/lib/packet.c b/lib/packet.c
index 154abc8..f0593dc 100644
--- a/lib/packet.c
+++ b/lib/packet.c
@@ -99,7 +99,9 @@ _event_cb (struct bufferevent *bev, short events, void *ctx)
   struct rs_packet *pkt = (struct rs_packet *)ctx;
   struct rs_connection *conn;
   struct rs_peer *p;
+#if defined RS_ENABLE_TLS
   unsigned long err;
+#endif
 
   assert (pkt);
   assert (pkt->conn);
@@ -137,7 +139,7 @@ _event_cb (struct bufferevent *bev, short events, void *ctx)
 				   "%d", err);
 	    }
 	}
-#endif
+#endif	/* RS_ENABLE_TLS */
       rs_err_conn_push_fl (pkt->conn, RSE_CONNERR, __FILE__, __LINE__, NULL);
       fprintf (stderr, "%s: BEV_EVENT_ERROR\n", __func__); /* DEBUG, until verified that pushed errors will actually be handled  */
     }
@@ -339,6 +341,7 @@ _init_bev (struct rs_connection *conn, struct rs_peer *peer)
 	return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
 				    "bufferevent_socket_new");
       break;
+#if defined RS_ENABLE_TLS
     case RS_CONN_TYPE_TLS:
       if (rs_tls_init (conn))
 	return -1;
@@ -356,6 +359,7 @@ _init_bev (struct rs_connection *conn, struct rs_peer *peer)
     case RS_CONN_TYPE_DTLS:
       return rs_err_conn_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__,
 				  "%s: NYI", __func__);
+#endif	/* RS_ENABLE_TLS */
     default:
       return rs_err_conn_push_fl (conn, RSE_INTERNAL, __FILE__, __LINE__,
 				  "%s: invalid connection type: %d", __func__,
-- 
2.1.4