detect if built with the OpenSSL API "emulated" by yassl

        OPENSSL_ENABLED=1

        AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is in use]))

      dnl yassl doesn't have SSL_get_shutdown ?

      AC_CHECK_FUNCS( SSL_get_shutdown )

      if test $ac_cv_header_openssl_x509_h = no; then

        dnl we don't use the "action" part of the AC_CHECK_HEADERS macro

        dnl since 'err.h' might in fact find a krb4 header with the same

              ])

    dnl these can only exist if openssl exists

    dnl yassl doesn't have SSL_get_shutdown

    AC_CHECK_FUNCS( RAND_status \

                    RAND_screen \

                    RAND_egd \

                    CRYPTO_cleanup_all_ex_data )

                    CRYPTO_cleanup_all_ex_data \

                    SSL_get_shutdown )

    dnl Make an attempt to detect if this is actually yassl's headers and

    dnl OpenSSL emulation layer. We still leave everything else believing

    dnl and acting like OpenSSL.

    AC_MSG_CHECKING([for yassl in disguise])

    AC_EGREP_CPP([^check for YASSL_VERSION], [

#include <openssl/ssl.h>

check for YASSL_VERSION

],

         dnl action if the text is found, this it has not been replaced by the

         dnl cpp

         AC_MSG_RESULT([no])

         ,

         dnl the text was not found, it was replaced by the cpp

         yassl="yes"

         AC_DEFINE(USE_YASSLEMUL, 1, [if you use yassl])

         AC_MSG_RESULT([yes])

         curl_ssl_msg="enabled (OpenSSL emulation by yassl)"

       )

  fi

  if test "$OPENSSL_ENABLED" = "1"; then