#***************************************************************************
#                                  _   _ ____  _
#  Project                     ___| | | |  _ \| |
#                             / __| | | | |_) | |
#                            | (__| |_| |  _ <| |___
#                             \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
#***************************************************************************

AC_DEFUN([CURL_WITH_AMISSL], [
AC_MSG_CHECKING([whether to enable Amiga native SSL/TLS (AmiSSL v5)])
if test "$HAVE_PROTO_BSDSOCKET_H" = "1"; then
  if test "x$OPT_AMISSL" != xno; then
    ssl_msg=
    AC_COMPILE_IFELSE([
      AC_LANG_PROGRAM([[
        #include <libraries/amisslmaster.h>
        #include <openssl/opensslv.h>
      ]],[[
        #if defined(AMISSL_CURRENT_VERSION) && (AMISSL_CURRENT_VERSION >= AMISSL_V303) && \
            defined(OPENSSL_VERSION_MAJOR) && (OPENSSL_VERSION_MAJOR >= 3) && \
            defined(PROTO_AMISSL_H)
        return 0;
        #else
        #error not AmiSSL v5 / OpenSSL 3
        #endif
      ]])
    ],[
      AC_MSG_RESULT([yes])
      ssl_msg="AmiSSL"
      test amissl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
      AMISSL_ENABLED=1
      OPENSSL_ENABLED=1
      # Use AmiSSL's built-in ca bundle
      check_for_ca_bundle=1
      with_ca_fallback=yes
      LIBS="-lamisslstubs -lamisslauto $LIBS"
      AC_DEFINE(USE_AMISSL, 1, [if AmiSSL is in use])
      AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is in use])
      AC_DEFINE_UNQUOTED(HAVE_OPENSSL3, 1, [Define to 1 if using OpenSSL 3 or later.])
      AC_CHECK_HEADERS(openssl/x509.h openssl/rsa.h openssl/crypto.h \
                       openssl/pem.h openssl/ssl.h openssl/err.h)
      dnl OpenSSLv3 marks the DES functions deprecated but we have no
      dnl replacements (yet) so tell the compiler to not warn for them
      dnl
      dnl Ask OpenSSL to suppress the warnings.
      CPPFLAGS="$CPPFLAGS -DOPENSSL_SUPPRESS_DEPRECATED"
    ],[
      AC_MSG_RESULT([no])
    ])
    test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
  else
    AC_MSG_RESULT(no)
  fi
else
  AC_MSG_RESULT(no)
fi

])