Adjust the signer test to link statically and work with hidden tls_signer

API.

Author: tb

src/regress/lib/libtls/signer/Makefile

@@ -1,11 +1,13 @@
-#	$OpenBSD: Makefile,v 1.1 2022/01/30 18:38:41 jsing Exp $
+#	$OpenBSD: Makefile,v 1.2 2022/03/24 15:58:57 tb Exp $
 
 PROG=	signertest
-LDADD=	-lcrypto -lssl -ltls
+LDADD=	-lcrypto -lssl
+LDADD+=	-Wl,-Bstatic -ltls -Wl,-Bdynamic
 DPADD=	${LIBCRYPTO} ${LIBSSL} ${LIBTLS}
 
 WARNINGS=	Yes
 CFLAGS+=	-DLIBRESSL_INTERNAL -Wall -Wundef -Werror
+CFLAGS+=	-I${.CURDIR}/../../../../lib/libtls/
 
 REGRESS_TARGETS= \
 	regress-signertest

src/regress/lib/libtls/signer/signertest.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: signertest.c,v 1.4 2022/02/01 17:19:16 jsing Exp $ */
+/* $OpenBSD: signertest.c,v 1.5 2022/03/24 15:58:57 tb Exp $ */
 /*
  * Copyright (c) 2017, 2018, 2022 Joel Sing <jsing@openbsd.org>
  *
@@ -32,6 +32,8 @@
 
 #include <tls.h>
 
+#include "tls_internal.h"
+
 const char *cert_path;
 int sign_cb_count;