wolfssl/configure.ac

# configure.ac
#
# Copyright (C) 2006-2015 wolfSSL Inc.
#
# This file is part of wolfSSL. (formerly known as CyaSSL)
#
#

AC_INIT([wolfssl],[3.9.8],[https://github.com/wolfssl/wolfssl/issues],[wolfssl],[http://www.wolfssl.com])

AC_CONFIG_AUX_DIR([build-aux])

# The following sets CFLAGS to empty if unset on command line. We do not want
# the default "-g -O2" that AC_PROG_CC sets automatically.
: ${CFLAGS=""}

AC_CANONICAL_HOST
AC_CANONICAL_BUILD

AM_INIT_AUTOMAKE([1.11 -Wall -Werror -Wno-portability foreign tar-ustar subdir-objects no-define color-tests])
AC_PREREQ([2.63])

AC_ARG_PROGRAM
AC_DEFUN([PROTECT_AC_USE_SYSTEM_EXTENSIONS],
         [AX_SAVE_FLAGS
          AC_LANG_PUSH([C])
          AC_USE_SYSTEM_EXTENSIONS
          AC_LANG_POP([C])
          AX_RESTORE_FLAGS
          ])
#PROTECT_AC_USE_SYSTEM_EXTENSIONS

AC_CONFIG_MACRO_DIR([m4])

AC_CONFIG_HEADERS([config.h:config.in])dnl Keep filename to 8.3 for MS-DOS.

#shared library versioning
WOLFSSL_LIBRARY_VERSION=7:0:4
#                       | | |
#                +------+ | +---+
#                |        |     |
#               current:revision:age
#                |        |     |
#                |        |     +- increment if interfaces have been added
#                |        |        set to zero if interfaces have been removed
#                |        |        or changed
#                |        +- increment if source code has changed
#                |           set to zero if current is incremented
#                +- increment if interfaces have been added, removed or changed
AC_SUBST([WOLFSSL_LIBRARY_VERSION])

# capture user C_EXTRA_FLAGS from ./configure line, CFLAGS may hold -g -O2 even
# if user doesn't override, no way to tell
USER_C_EXTRA_FLAGS="$C_EXTRA_FLAGS"
USER_CFLAGS="$CFLAGS"

LT_PREREQ([2.2])
LT_INIT([disable-static],[win32-dll])
LT_LANG([C++])
LT_LANG([C])

gl_VISIBILITY
AS_IF([ test -n "$CFLAG_VISIBILITY" ], [
       AM_CPPFLAGS="$AM_CPPFLAGS $CFLAG_VISIBILITY"
       CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY"
       ])

m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])

AC_CHECK_FUNCS([gethostbyname])
AC_CHECK_FUNCS([getaddrinfo])
AC_CHECK_FUNCS([gettimeofday])
AC_CHECK_FUNCS([gmtime_r])
AC_CHECK_FUNCS([inet_ntoa])
AC_CHECK_FUNCS([memset])
AC_CHECK_FUNCS([socket])
AC_CHECK_HEADERS([arpa/inet.h])
AC_CHECK_HEADERS([fcntl.h])
AC_CHECK_HEADERS([limits.h])
AC_CHECK_HEADERS([netdb.h])
AC_CHECK_HEADERS([netinet/in.h])
AC_CHECK_HEADERS([stddef.h])
AC_CHECK_HEADERS([sys/ioctl.h])
AC_CHECK_HEADERS([sys/socket.h])
AC_CHECK_HEADERS([sys/time.h])
AC_CHECK_HEADERS([errno.h])
AC_CHECK_LIB(network,socket)
AC_CHECK_SIZEOF(long long, 8)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_TYPES(__uint128_t)
AC_C_BIGENDIAN
# mktime check takes forever on some systems, if time supported it would be
# highly unusual for mktime to be missing
#AC_FUNC_MKTIME

AC_PROG_CC
AC_PROG_CC_C_O
AC_PROG_CXX
AC_PROG_INSTALL
AC_TYPE_SIZE_T
AC_TYPE_UINT8_T
AM_PROG_AS
AM_PROG_CC_C_O
LT_LIB_M

OPTIMIZE_CFLAGS="-Os -fomit-frame-pointer"
OPTIMIZE_FAST_CFLAGS="-O2 -fomit-frame-pointer"
OPTIMIZE_HUGE_CFLAGS="-funroll-loops -DTFM_SMALL_SET -DTFM_HUGE_SET"
DEBUG_CFLAGS="-g -DDEBUG -DDEBUG_WOLFSSL"
LIB_ADD=
LIB_STATIC_ADD=

thread_ls_on=no
# Thread local storage
AX_TLS([
        [AM_CFLAGS="$AM_CFLAGS -DHAVE_THREAD_LS"]
        [thread_ls_on=yes]
       ] , [:])


# DEBUG
AX_DEBUG
AS_IF([test "$ax_enable_debug" = "yes"],
      [AM_CFLAGS="$DEBUG_CFLAGS $AM_CFLAGS"],
      [AM_CFLAGS="$AM_CFLAGS -DNDEBUG"])


# Distro build feature subset (Debian, Ubuntu, etc.)
AC_ARG_ENABLE([distro],
    [  --enable-distro         Enable wolfSSL distro build (default: disabled)],
    [ ENABLED_DISTRO=$enableval ],
    [ ENABLED_DISTRO=no ]
    )
if test "$ENABLED_DISTRO" = "yes"
then
    enable_shared=yes
    enable_static=yes
    enable_dtls=yes
    enable_openssh=yes
    enable_opensslextra=yes
    enable_savesession=yes
    enable_savecert=yes
    enable_atomicuser=yes
    enable_pkcallbacks=yes
    enable_aesgcm=yes
    enable_aesccm=yes
    enable_camellia=yes
    enable_ripemd=yes
    enable_sha512=yes
    enable_sessioncerts=yes
    enable_keygen=yes
    enable_certgen=yes
    enable_certreq=yes
    enable_certext=yes
    enable_sep=yes
    enable_hkdf=yes
    enable_dsa=yes
    enable_ecccustcurves=yes
    enable_compkey=yes
    enable_curve25519=yes
    enable_ed25519=yes
    enable_fpecc=yes
    enable_eccencrypt=yes
    enable_psk=yes
    enable_idea=yes
    enable_cmac=yes
    enable_webserver=yes
    enable_hc128=yes
    enable_rabbit=yes
    enable_ocsp=yes
    enable_ocspstapling=yes
    enable_ocspstapling2=yes
    enable_crl=yes
    enable_crl_monitor=yes
    enable_sni=yes
    enable_maxfragment=yes
    enable_alpn=yes
    enable_truncatedhmac=yes
    enable_supportedcurves=yes
    enable_session_ticket=yes
    enable_tlsx=yes
    enable_pkcs7=yes
    enable_scep=yes
    enable_srp=yes
    enable_certservice=yes
    enable_jni=yes
    enable_lighty=yes
    enable_stunnel=yes
    enable_pwdbased=yes
fi


# SINGLE THREADED
AC_ARG_ENABLE([singlethreaded],
    [  --enable-singlethreaded Enable wolfSSL single threaded (default: disabled)],
    [ ENABLED_SINGLETHREADED=$enableval ],
    [ ENABLED_SINGLETHREADED=no ])

AS_IF([ test "x$ENABLED_SINGLETHREADED" = "xno" ],[
       AX_PTHREAD([
                   AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files.])
                   AM_CFLAGS="-D_POSIX_THREADS $AM_CFLAGS $PTHREAD_CFLAGS"
                   LIBS="$LIBS $PTHREAD_LIBS"
                   ],[
                      ENABLED_SINGLETHREADED=yes
                      ])
       ])

AS_IF([ test "x$ENABLED_SINGLETHREADED" = "xyes" ],[ AM_CFLAGS="-DSINGLE_THREADED $AM_CFLAGS" ])


# DTLS
AC_ARG_ENABLE([dtls],
    [  --enable-dtls           Enable wolfSSL DTLS (default: disabled)],
    [ ENABLED_DTLS=$enableval ],
    [ ENABLED_DTLS=no ]
    )
if test "$ENABLED_DTLS" = "yes"
then
  AM_CFLAGS="-DWOLFSSL_DTLS $AM_CFLAGS"
fi


# DTLS-SCTP
AC_ARG_ENABLE([sctp],
    [AS_HELP_STRING([--enable-sctp],[Enable wolfSSL DTLS-SCTP support (default: disabled)])],
    [ENABLED_SCTP=$enableval],
    [ENABLED_SCTP=no])

AM_CONDITIONAL([BUILD_SCTP], [test "x$ENABLED_SCTP" = "xyes"])

AS_IF([test "x$ENABLED_SCTP" = "xyes"],
        [AC_MSG_CHECKING([for SCTP])
         AC_RUN_IFELSE(
            [AC_LANG_PROGRAM(
[[
#include <sys/socket.h>
#include <arpa/inet.h>
]],
[[int s = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP); if (s == -1) return 1;]])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
 AC_MSG_ERROR([SCTP not available, remove enable-sctp from configure])])
])


# OpenSSH compatibility Build
AC_ARG_ENABLE([openssh],
    [AS_HELP_STRING([--enable-openssh],[Enable OpenSSH compatibility build (default: disabled)])],
    [ENABLED_OPENSSH=$enableval],
    [ENABLED_OPENSSH=no])


# OPENSSL Extra Compatibility
AC_ARG_ENABLE([opensslextra],
    [  --enable-opensslextra   Enable extra OpenSSL API, size+ (default: disabled)],
    [ ENABLED_OPENSSLEXTRA=$enableval ],
    [ ENABLED_OPENSSLEXTRA=no ]
    )
if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_OPENSSLEXTRA="yes"
fi

if test "$ENABLED_OPENSSLEXTRA" = "yes"
then
  AM_CFLAGS="-DOPENSSL_EXTRA $AM_CFLAGS"
fi

if test "$ENABLED_OPENSSLEXTRA" = "yes" && test "$ENABLED_SMALL" = "yes"
then
    AC_MSG_ERROR([cannot enable small and opensslextra, only one or the other.])
fi


# High Strength Build
AC_ARG_ENABLE([maxstrength],
    [AS_HELP_STRING([--enable-maxstrength],[Enable Max Strengh build, allows TLSv1.2-AEAD-PFS ciphers only (default: disabled)])],
    [ENABLED_MAXSTRENGTH=$enableval],
    [ENABLED_MAXSTRENGTH=no])


# Harden, enable Timing Resistance and Blinding by default
AC_ARG_ENABLE([harden],
    [AS_HELP_STRING([--enable-harden],[Enable Hardened build, Enables Timing Resistance and Blinding (default: enabled)])],
    [ENABLED_HARDEN=$enableval],
    [ENABLED_HARDEN=yes])

if test "$ENABLED_HARDEN" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DTFM_TIMING_RESISTANT -DECC_TIMING_RESISTANT -DWC_RSA_BLINDING"
fi


# IPv6 Test Apps
AC_ARG_ENABLE([ipv6],
    [  --enable-ipv6           Enable testing of IPV6 (default: disabled)],
    [ ENABLED_IPV6=$enableval ],
    [ ENABLED_IPV6=no ]
    )

if test "$ENABLED_IPV6" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DTEST_IPV6"
fi

AM_CONDITIONAL([BUILD_IPV6], [test "x$ENABLED_IPV6" = "xyes"])


# Fortress build
AC_ARG_ENABLE([fortress],
    [  --enable-fortress       Enable SSL fortress build (default: disabled)],
    [ ENABLED_FORTRESS=$enableval ],
    [ ENABLED_FORTRESS=no ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_FORTRESS="yes"
fi

if test "$ENABLED_FORTRESS" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DFORTRESS -DWOLFSSL_ALWAYS_VERIFY_CB -DOPENSSL_EXTRA -DWOLFSSL_DES_ECB -DWOLFSSL_AES_COUNTER -DWOLFSSL_AES_DIRECT -DWOLFSSL_DER_LOAD -DWOLFSSL_SHA512 -DWOLFSSL_SHA384 -DWOLFSSL_KEY_GEN"
fi


# ssl bump build
AC_ARG_ENABLE([bump],
    [  --enable-bump           Enable SSL Bump build (default: disabled)],
    [ ENABLED_BUMP=$enableval ],
    [ ENABLED_BUMP=no ]
    )

if test "$ENABLED_BUMP" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DLARGE_STATIC_BUFFERS -DWOLFSSL_CERT_GEN -DWOLFSSL_KEY_GEN -DHUGE_SESSION_CACHE -DOPENSSL_EXTRA -DFP_MAX_BITS=8192 -DWOLFSSL_DER_LOAD -DWOLFSSL_ALT_NAMES -DWOLFSSL_TEST_CERT"
fi

ENABLED_SLOWMATH="yes"

# lean psk build
AC_ARG_ENABLE([leanpsk],
    [  --enable-leanpsk        Enable Lean PSK build (default: disabled)],
    [ ENABLED_LEANPSK=$enableval ],
    [ ENABLED_LEANPSK=no ]
    )

if test "$ENABLED_LEANPSK" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANPSK -DHAVE_NULL_CIPHER -DSINGLE_THREADED -DNO_AES -DNO_FILESYSTEM -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_CERTS -DNO_PWDBASED -DNO_MD4 -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_WRITEV -DNO_SESSION_CACHE -DNO_DEV_RANDOM -DWOLFSSL_USER_IO -DNO_SHA -DUSE_SLOW_SHA"
    ENABLED_SLOWMATH="no"
    ENABLED_SINGLETHREADED="yes"
fi

AM_CONDITIONAL([BUILD_LEANPSK], [test "x$ENABLED_LEANPSK" = "xyes"])


# lean TLS build (TLS 1.2 client only (no client auth), ECC256, AES128 and SHA256 w/o Shamir)
AC_ARG_ENABLE([leantls],
    [  --enable-leantls        Enable Lean TLS build (default: disabled)],
    [ ENABLED_LEANTLS=$enableval ],
    [ ENABLED_LEANTLS=no ]
    )

if test "$ENABLED_LEANTLS" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_LEANTLS -DNO_WRITEV -DHAVE_ECC -DTFM_ECC256 -DECC_USER_CURVES -DNO_WOLFSSL_SERVER -DNO_RABBIT -DNO_RSA -DNO_DSA -DNO_DH -DNO_PWDBASED -DNO_MD5 -DNO_ERROR_STRINGS -DNO_OLD_TLS -DNO_RC4 -DNO_SESSION_CACHE -DNO_SHA -DUSE_SLOW_SHA -DUSE_SLOW_SHA2 -DNO_PSK -DNO_WOLFSSL_MEMORY"
fi

AM_CONDITIONAL([BUILD_LEANTLS], [test "x$ENABLED_LEANTLS" = "xyes"])


# big cache
AC_ARG_ENABLE([bigcache],
    [  --enable-bigcache       Enable big session cache (default: disabled)],
    [ ENABLED_BIGCACHE=$enableval ],
    [ ENABLED_BIGCACHE=no ]
    )

if test "$ENABLED_BIGCACHE" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DBIG_SESSION_CACHE"
fi


# HUGE cache
AC_ARG_ENABLE([hugecache],
    [  --enable-hugecache      Enable huge session cache (default: disabled)],
    [ ENABLED_HUGECACHE=$enableval ],
    [ ENABLED_HUGECACHE=no ]
    )

if test "$ENABLED_HUGECACHE" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHUGE_SESSION_CACHE"
fi


# SMALL cache
AC_ARG_ENABLE([smallcache],
    [  --enable-smallcache     Enable small session cache (default: disabled)],
    [ ENABLED_SMALLCACHE=$enableval ],
    [ ENABLED_SMALLCACHE=no ]
    )

if test "$ENABLED_SMALLCACHE" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DSMALL_SESSION_CACHE"
fi


# Persistent session cache
AC_ARG_ENABLE([savesession],
    [  --enable-savesession    Enable persistent session cache (default: disabled)],
    [ ENABLED_SAVESESSION=$enableval ],
    [ ENABLED_SAVESESSION=no ]
    )

if test "$ENABLED_SAVESESSION" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DPERSIST_SESSION_CACHE"
fi


# Persistent cert cache
AC_ARG_ENABLE([savecert],
    [  --enable-savecert       Enable persistent cert cache (default: disabled)],
    [ ENABLED_SAVECERT=$enableval ],
    [ ENABLED_SAVECERT=no ]
    )

if test "$ENABLED_SAVECERT" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DPERSIST_CERT_CACHE"
fi


# Atomic User Record Layer
AC_ARG_ENABLE([atomicuser],
    [  --enable-atomicuser     Enable Atomic User Record Layer (default: disabled)],
    [ ENABLED_ATOMICUSER=$enableval ],
    [ ENABLED_ATOMICUSER=no ]
    )

if test "$ENABLED_ATOMICUSER" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DATOMIC_USER"
fi


# Public Key Callbacks
AC_ARG_ENABLE([pkcallbacks],
    [  --enable-pkcallbacks    Enable Public Key Callbacks (default: disabled)],
    [ ENABLED_PKCALLBACKS=$enableval ],
    [ ENABLED_PKCALLBACKS=no ]
    )

if test "$ENABLED_PKCALLBACKS" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_PK_CALLBACKS"
fi


# SNIFFER
AC_ARG_ENABLE([sniffer],
   [AS_HELP_STRING([--enable-sniffer],[Enable wolfSSL sniffer support (default: disabled)])],
   [ ENABLED_SNIFFER=$enableval ],
   [ ENABLED_SNIFFER=no ]
   )

# sniffer doesn't work in maxstrength mode
if test "$ENABLED_SNIFFER" = "yes" && test "$ENABLED_MAXSTRENGTH" = "yes"
then
    AC_MSG_ERROR([cannot enable maxstrength in sniffer mode.])
fi

ENABLED_SNIFFTEST=no
AS_IF([ test "x$ENABLED_SNIFFER" = "xyes" ],
      [
          AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_SNIFFER -DOPENSSL_EXTRA"
          AC_CHECK_HEADERS([pcap/pcap.h],
              [ ENABLED_SNIFFTEST=yes ],
              [ AC_MSG_WARN([cannot enable sniffer test without having libpcap available.]) ]
          )
      ])

AM_CONDITIONAL([BUILD_SNIFFER],   [ test "x$ENABLED_SNIFFER"   = "xyes" ])
AM_CONDITIONAL([BUILD_SNIFFTEST], [ test "x$ENABLED_SNIFFTEST" = "xyes" ])

# AES-GCM
AC_ARG_ENABLE([aesgcm],
    [AS_HELP_STRING([--enable-aesgcm],[Enable wolfSSL AES-GCM support (default: enabled)])],
    [ ENABLED_AESGCM=$enableval ],
    [ ENABLED_AESGCM=yes ]
    )

# leanpsk and leantls don't need gcm
if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
then
    ENABLED_AESGCM=no
fi

if test "$ENABLED_AESGCM" = "word32"
then
    AM_CFLAGS="$AM_CFLAGS -DGCM_WORD32"
    ENABLED_AESGCM=yes
fi

if test "$ENABLED_AESGCM" = "small"
then
    AM_CFLAGS="$AM_CFLAGS -DGCM_SMALL"
    ENABLED_AESGCM=yes
fi

if test "$ENABLED_AESGCM" = "table"
then
    AM_CFLAGS="$AM_CFLAGS -DGCM_TABLE"
    ENABLED_AESGCM=yes
fi

if test "$ENABLED_AESGCM" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_AESGCM"
fi

AM_CONDITIONAL([BUILD_AESGCM], [test "x$ENABLED_AESGCM" = "xyes"])


# AES-CCM
AC_ARG_ENABLE([aesccm],
    [  --enable-aesccm         Enable wolfSSL AES-CCM support (default: disabled)],
    [ ENABLED_AESCCM=$enableval ],
    [ ENABLED_AESCCM=no ]
    )

if test "$ENABLED_AESCCM" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_AESCCM"
fi

AM_CONDITIONAL([BUILD_AESCCM], [test "x$ENABLED_AESCCM" = "xyes"])


# AES-ARM
AC_ARG_ENABLE([armasm],
    [AS_HELP_STRING([--enable-armasm],[Enable wolfSSL ARM ASM support (default: disabled)])],
    [ ENABLED_ARMASM=$enableval ],
    [ ENABLED_ARMASM=no ]
    )
if test "$ENABLED_ARMASM" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_ARMASM"
    if test "$GCC" = "yes"
    then
        # GCC needs this flag
        AM_CFLAGS="$AM_CFLAGS -mcpu=generic+crypto"
    fi
fi

AM_CONDITIONAL([BUILD_ARMASM], [test "x$ENABLED_ARMASM" = "xyes"])

# AES-NI
AC_ARG_ENABLE([aesni],
    [AS_HELP_STRING([--enable-aesni],[Enable wolfSSL AES-NI support (default: disabled)])],
    [ ENABLED_AESNI=$enableval ],
    [ ENABLED_AESNI=no ]
    )

# INTEL ASM
AC_ARG_ENABLE([intelasm],
    [AS_HELP_STRING([--enable-intelasm],[Enable All Intel ASM speedups (default: disabled)])],
    [ ENABLED_INTELASM=$enableval ],
    [ ENABLED_INTELASM=no ]
    )

if test "$ENABLED_AESNI" = "yes" || test "$ENABLED_INTELASM" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_AESNI"
    if test "$GCC" = "yes"
    then
        # GCC needs these flags, icc doesn't
        # opt levels greater than 2 may cause problems on systems w/o aesni
        if test "$CC" != "icc"
        then
            AM_CFLAGS="$AM_CFLAGS -maes -msse4"
        fi
    fi
    AS_IF([test "x$ENABLED_AESGCM" != "xno"],[AM_CCASFLAGS="$AM_CCASFLAGS -DHAVE_AESGCM"])
fi

if test "$ENABLED_INTELASM" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_INTEL_RDGEN -DUSE_INTEL_SPEEDUP"
    ENABLED_AESNI=yes
fi

AM_CONDITIONAL([BUILD_AESNI], [test "x$ENABLED_AESNI" = "xyes"])


# Camellia
AC_ARG_ENABLE([camellia],
    [  --enable-camellia       Enable wolfSSL Camellia support (default: disabled)],
    [ ENABLED_CAMELLIA=$enableval ],
    [ ENABLED_CAMELLIA=no ]
    )

if test "$ENABLED_CAMELLIA" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_CAMELLIA"
fi

AM_CONDITIONAL([BUILD_CAMELLIA], [test "x$ENABLED_CAMELLIA" = "xyes"])


# MD2
AC_ARG_ENABLE([md2],
    [  --enable-md2            Enable wolfSSL MD2 support (default: disabled)],
    [ ENABLED_MD2=$enableval ],
    [ ENABLED_MD2=no ]
    )

if test "$ENABLED_BUMP" = "yes"
then
    ENABLED_MD2="yes"
fi

if test "$ENABLED_MD2" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_MD2"
fi

AM_CONDITIONAL([BUILD_MD2], [test "x$ENABLED_MD2" = "xyes"])


# NULL CIPHER
AC_ARG_ENABLE([nullcipher],
    [  --enable-nullcipher     Enable wolfSSL NULL cipher support (default: disabled)],
    [ ENABLED_NULL_CIPHER=$enableval ],
    [ ENABLED_NULL_CIPHER=no ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_NULL_CIPHER="yes"
fi

if test "$ENABLED_NULL_CIPHER" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_NULL_CIPHER"
fi

# RIPEMD
AC_ARG_ENABLE([ripemd],
    [  --enable-ripemd         Enable wolfSSL RIPEMD-160 support (default: disabled)],
    [ ENABLED_RIPEMD=$enableval ],
    [ ENABLED_RIPEMD=no ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_RIPEMD="yes"
fi

if test "$ENABLED_RIPEMD" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_RIPEMD"
fi

AM_CONDITIONAL([BUILD_RIPEMD], [test "x$ENABLED_RIPEMD" = "xyes"])


# BLAKE2
AC_ARG_ENABLE([blake2],
    [  --enable-blake2         Enable wolfSSL BLAKE2 support (default: disabled)],
    [ ENABLED_BLAKE2=$enableval ],
    [ ENABLED_BLAKE2=no ]
    )

if test "$ENABLED_BLAKE2" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_BLAKE2"
fi

AM_CONDITIONAL([BUILD_BLAKE2], [test "x$ENABLED_BLAKE2" = "xyes"])


# set sha512 default
SHA512_DEFAULT=no
if test "$host_cpu" = "x86_64"
then
SHA512_DEFAULT=yes
fi

# SHA512
AC_ARG_ENABLE([sha512],
    [AS_HELP_STRING([--enable-sha512],[Enable wolfSSL SHA-512 support (default: enabled on x86_64)])],
    [ ENABLED_SHA512=$enableval ],
    [ ENABLED_SHA512=$SHA512_DEFAULT ]
    )

# leanpsk and leantls don't need sha512
if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
then
    ENABLED_SHA512=no
fi

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_SHA512="yes"
fi

if test "$ENABLED_SHA512" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_SHA512 -DWOLFSSL_SHA384"
fi

if test "$ENABLED_FORTRESS" = "yes"
then
    ENABLED_SHA512="yes"
fi


AM_CONDITIONAL([BUILD_SHA512], [test "x$ENABLED_SHA512" = "xyes"])


# SESSION CERTS
AC_ARG_ENABLE([sessioncerts],
    [  --enable-sessioncerts   Enable session cert storing (default: disabled)],
    [ ENABLED_SESSIONCERTS=$enableval ],
    [ ENABLED_SESSIONCERTS=no ]
    )

if test "$ENABLED_SESSIONCERTS" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DSESSION_CERTS"
fi


# KEY GENERATION
AC_ARG_ENABLE([keygen],
    [  --enable-keygen         Enable key generation (default: disabled)],
    [ ENABLED_KEYGEN=$enableval ],
    [ ENABLED_KEYGEN=no ]
    )

if test "$ENABLED_KEYGEN" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_KEY_GEN"
fi


# CERT GENERATION
AC_ARG_ENABLE([certgen],
    [  --enable-certgen        Enable cert generation (default: disabled)],
    [ ENABLED_CERTGEN=$enableval ],
    [ ENABLED_CERTGEN=no ]
    )

if test "$ENABLED_CERTGEN" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_GEN"
fi


# CERT REQUEST GENERATION
AC_ARG_ENABLE([certreq],
    [  --enable-certreq        Enable cert request generation (default: disabled)],
    [ ENABLED_CERTREQ=$enableval ],
    [ ENABLED_CERTREQ=no ]
    )

if test "$ENABLED_CERTREQ" = "yes"
then
    if test "$ENABLED_CERTGEN" = "no"
    then
        AC_MSG_ERROR([cannot enable certreq without enabling certgen.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_REQ"
fi


# CERT REQUEST EXTENSION
AC_ARG_ENABLE([certext],
    [  --enable-certext        Enable cert request extensions (default: disabled)],
    [ ENABLED_CERTEXT=$enableval ],
    [ ENABLED_CERTEXT=no ]
    )

if test "$ENABLED_CERTEXT" = "yes"
then
    if test "$ENABLED_CERTGEN" = "no"
    then
        AC_MSG_ERROR([cannot enable certext without enabling certgen.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_EXT"
fi


# SEP
AC_ARG_ENABLE([sep],
    [  --enable-sep            Enable sep extensions (default: disabled)],
    [ ENABLED_SEP=$enableval ],
    [ ENABLED_SEP=no ]
    )
if test "$ENABLED_SEP" = "yes"
then
  AM_CFLAGS="-DWOLFSSL_SEP -DKEEP_PEER_CERT $AM_CFLAGS"
fi


# HKDF
AC_ARG_ENABLE([hkdf],
    [  --enable-hkdf           Enable HKDF (HMAC-KDF) support (default: disabled)],
    [ ENABLED_HKDF=$enableval ],
    [ ENABLED_HKDF=no ]
    )
if test "$ENABLED_HKDF" = "yes"
then
  AM_CFLAGS="$AM_CFLAGS -DHAVE_HKDF"
fi


# DSA
AC_ARG_ENABLE([dsa],
    [  --enable-dsa            Enable DSA (default: disabled)],
    [ ENABLED_DSA=$enableval ],
    [ ENABLED_DSA=no ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_DSA="yes"
fi

if test "$ENABLED_DSA" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_DSA"
fi

AM_CONDITIONAL([BUILD_DSA], [test "x$ENABLED_DSA" = "xyes"])


# set ecc default
ECC_DEFAULT=no

if test "$host_cpu" = "x86_64"
then
ECC_DEFAULT=yes
fi

# ECC Shamir
AC_ARG_ENABLE([eccshamir],
    [AS_HELP_STRING([--enable-eccshamir],[Enable ECC Shamir (default: enabled on x86_64)])],
    [ ENABLED_ECC_SHAMIR=$enableval ],
    [ ENABLED_ECC_SHAMIR=$ECC_DEFAULT ]
    )


# ECC
AC_ARG_ENABLE([ecc],
    [AS_HELP_STRING([--enable-ecc],[Enable ECC (default: enabled on x86_64)])],
    [ ENABLED_ECC=$enableval ],
    [ ENABLED_ECC=$ECC_DEFAULT ]
    )

# lean psk doesn't need ecc
if test "$ENABLED_LEANPSK" = "yes"
then
    ENABLED_ECC=no
fi

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_ECC="yes"
fi

if test "$ENABLED_ECC" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_ECC -DTFM_ECC256"
    if test "$ENABLED_ECC_SHAMIR" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DECC_SHAMIR"
    fi
fi

AM_CONDITIONAL([BUILD_ECC], [test "x$ENABLED_ECC" = "xyes"])

# ECC Custom Curves
AC_ARG_ENABLE([ecccustcurves],
    [AS_HELP_STRING([--enable-ecccustcurves],[Enable ECC custom curves (default: disabled)])],
    [ ENABLED_ECCCUSTCURVES=$enableval ],
    [ ENABLED_ECCCUSTCURVES=no ]
    )

if test "$ENABLED_ECCCUSTCURVES" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CUSTOM_CURVES"
fi


# Compressed Key
AC_ARG_ENABLE([compkey],
    [AS_HELP_STRING([--enable-compkey],[Enable compressed keys support (default: disabled)])],
    [ ENABLED_COMPKEY=$enableval ],
    [ ENABLED_COMPKEY=no ]
    )

if test "$ENABLED_COMPKEY" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_COMP_KEY"
fi


# for using memory optimization setting on both curve25519 and ed25519
ENABLED_CURVED25519_SMALL=no

# CURVE25519
AC_ARG_ENABLE([curve25519],
    [AS_HELP_STRING([--enable-curve25519],[Enable Curve25519 (default: disabled)])],
    [ ENABLED_CURVE25519=$enableval ],
    [ ENABLED_CURVE25519=no ]
    )


if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_CURVE25519="yes"
fi

if test "$ENABLED_CURVE25519" = "small"
then
    AM_CFLAGS="$AM_CFLAGS -DCURVED25519_SMALL"
    ENABLED_CURVED25519_SMALL=yes
    ENABLED_CURVE25519=yes
fi

if test "$ENABLED_CURVE25519" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_CURVE25519"
    ENABLED_FEMATH=yes
fi


AM_CONDITIONAL([BUILD_CURVE25519], [test "x$ENABLED_CURVE25519" = "xyes"])


# ED25519
AC_ARG_ENABLE([ed25519],
    [AS_HELP_STRING([--enable-ed25519],[Enable ED25519 (default: disabled)])],
    [ ENABLED_ED25519=$enableval ],
    [ ENABLED_ED25519=no ]
    )


if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_ED25519="yes"
fi

if test "$ENABLED_ED25519" = "small"
then
    AM_CFLAGS="$AM_CFLAGS -DCURVED25519_SMALL"
    ENABLED_CURVED25519_SMALL=yes
    ENABLED_ED25519=yes
fi

if test "$ENABLED_ED25519" = "yes"
then
    if test "$ENABLED_SHA512" = "no"
    then
        AC_MSG_ERROR([cannot enable ed25519 without enabling sha512.])
    fi
    ENABLED_FEMATH=yes
    ENABLED_GEMATH=yes
    AM_CFLAGS="$AM_CFLAGS -DHAVE_ED25519"
fi

AM_CONDITIONAL([BUILD_ED25519], [test "x$ENABLED_ED25519" = "xyes"])
AM_CONDITIONAL([BUILD_CURVED25519_SMALL], [test "x$ENABLED_CURVED25519_SMALL" = "xyes"])
AM_CONDITIONAL([BUILD_FEMATH],  [test "x$ENABLED_FEMATH" = "xyes"])
AM_CONDITIONAL([BUILD_GEMATH],  [test "x$ENABLED_GEMATH" = "xyes"])

# FP ECC, Fixed Point cache ECC
AC_ARG_ENABLE([fpecc],
    [  --enable-fpecc          Enable Fixed Point cache ECC (default: disabled)],
    [ ENABLED_FPECC=$enableval ],
    [ ENABLED_FPECC=no ]
    )

if test "$ENABLED_FPECC" = "yes"
then
    if test "$ENABLED_ECC" = "no"
    then
        AC_MSG_ERROR([cannot enable fpecc without enabling ecc.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DFP_ECC"
fi


# ECC encrypt
AC_ARG_ENABLE([eccencrypt],
    [  --enable-eccencrypt     Enable ECC encrypt (default: disabled)],
    [ ENABLED_ECC_ENCRYPT=$enableval ],
    [ ENABLED_ECC_ENCRYPT=no ]
    )

if test "$ENABLED_ECC_ENCRYPT" = "yes"
then
    if test "$ENABLED_ECC" = "no"
    then
        AC_MSG_ERROR([cannot enable eccencrypt without enabling ecc.])
    fi
    if test "$ENABLED_HKDF" = "no"
    then
        AC_MSG_ERROR([cannot enable eccencrypt without enabling hkdf.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_ECC_ENCRYPT"
fi


# PSK
AC_ARG_ENABLE([psk],
    [  --enable-psk            Enable PSK (default: disabled)],
    [ ENABLED_PSK=$enableval ],
    [ ENABLED_PSK=no ]
    )


# ERROR STRINGS
AC_ARG_ENABLE([errorstrings],
    [  --enable-errorstrings   Enable error strings table (default: enabled)],
    [ ENABLED_ERROR_STRINGS=$enableval ],
    [ ENABLED_ERROR_STRINGS=yes ]
    )

if test "$ENABLED_ERROR_STRINGS" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_ERROR_STRINGS"
else
    # turn off error strings if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_ERROR_STRINGS"
        ENABLED_ERROR_STRINGS=no
    fi
fi


# OLD TLS
AC_ARG_ENABLE([oldtls],
    [  --enable-oldtls         Enable old TLS versions < 1.2 (default: enabled)],
    [ ENABLED_OLD_TLS=$enableval ],
    [ ENABLED_OLD_TLS=yes ]
    )

if test "$ENABLED_OLD_TLS" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_OLD_TLS"
else
    # turn off old if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_OLD_TLS"
        ENABLED_OLD_TLS=no
    fi
fi


# SSLv3
AC_ARG_ENABLE([sslv3],
    [AS_HELP_STRING([--enable-sslv3],[Enable SSL version 3.0 (default: disabled)])],
    [ ENABLED_SSLV3=$enableval ],
    [ ENABLED_SSLV3=no]
    )

if test "$ENABLED_SSLV3" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_ALLOW_SSLV3"
fi


# STACK SIZE info for examples
AC_ARG_ENABLE([stacksize],
    [  --enable-stacksize      Enable stack size info on examples (default: disabled)],
    [ ENABLED_STACKSIZE=$enableval ],
    [ ENABLED_STACKSIZE=no ]
    )

if test "$ENABLED_STACKSIZE" = "yes"
then
    AC_CHECK_FUNC([posix_memalign], [], [AC_MSG_ERROR(stacksize needs posix_memalign)])
    AC_CHECK_FUNC([pthread_attr_setstack], [], AC_CHECK_LIB([pthread],[pthread_attr_setstack]))
    AM_CFLAGS="$AM_CFLAGS -DHAVE_STACK_SIZE -DWOLFSSL_LOW_MEMORY"
fi


# MEMORY
AC_ARG_ENABLE([memory],
    [  --enable-memory         Enable memory callbacks (default: enabled)],
    [ ENABLED_MEMORY=$enableval ],
    [ ENABLED_MEMORY=yes ]
    )

if test "$ENABLED_MEMORY" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_WOLFSSL_MEMORY"
else
    # turn off memory cb if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        # but don't turn on NO_WOLFSSL_MEMORY because using own
        ENABLED_MEMORY=no
    fi
fi

AM_CONDITIONAL([BUILD_MEMORY], [test "x$ENABLED_MEMORY" = "xyes"])


# RSA
AC_ARG_ENABLE([rsa],
    [  --enable-rsa            Enable RSA (default: enabled)],
    [ ENABLED_RSA=$enableval ],
    [ ENABLED_RSA=yes ]
    )

if test "$ENABLED_RSA" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_RSA"
else
    # turn off RSA if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_RSA"
        ENABLED_RSA=no
    fi
fi

AM_CONDITIONAL([BUILD_RSA], [test "x$ENABLED_RSA" = "xyes"])


# DH
AC_ARG_ENABLE([dh],
    [AS_HELP_STRING([--enable-dh],[Enable DH (default: enabled)])],
    [ ENABLED_DH=$enableval ],
    [ ENABLED_DH=yes ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_DH="yes"
fi

if test "$ENABLED_DH" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_DH"
else
    # turn off DH if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_DH"
        ENABLED_DH=no
    fi
fi

AM_CONDITIONAL([BUILD_DH], [test "x$ENABLED_DH" = "xyes"])


# Anonymous
AC_ARG_ENABLE([anon],
    [AS_HELP_STRING([--enable-anon],[Enable Anonymous (default: disabled)])],
    [ ENABLED_ANON=$enableval ],
    [ ENABLED_ANON=no ]
    )


if test "x$ENABLED_ANON" = "xyes"
then
    if test "x$ENABLED_DH" != "xyes"
    then
        AC_MSG_ERROR([Anonymous suite requires DH.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_ANON"
fi


# ASN
# turn off asn, which means no certs, no rsa, no dsa, no ecc,
# and no big int (unless dh is on)
AC_ARG_ENABLE([asn],
    [  --enable-asn            Enable ASN (default: enabled)],
    [ ENABLED_ASN=$enableval ],
    [ ENABLED_ASN=yes ]
    )

if test "$ENABLED_ASN" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_ASN -DNO_CERTS"
    if test "$ENABLED_DH" = "no" && test "$ENABLED_ECC" == "no"
    then
        # DH and ECC need bigint
        AM_CFLAGS="$AM_CFLAGS -DNO_BIG_INT"
    fi
else
    # turn off ASN if leanpsk on
    if test "$ENABLED_LEANPSK" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_ASN -DNO_CERTS -DNO_BIG_INT"
        ENABLED_ASN=no
    fi
fi

if test "$ENABLED_RSA" = "yes" && test "$ENABLED_ASN" = "no"
then
    AC_MSG_ERROR([please disable rsa if disabling asn.])
fi

if test "$ENABLED_DSA" = "yes" && test "$ENABLED_ASN" = "no"
then
    AC_MSG_ERROR([please disable dsa if disabling asn.])
fi

# DH and ECC need bigint
if test "$ENABLED_ASN" = "no" && test "$ENABLED_DH" = "no" && test "$ENABLED_ECC" = "no"
then
    ENABLED_FASTMATH=no
    ENABLED_SLOWMATH=no
fi

AM_CONDITIONAL([BUILD_ASN], [test "x$ENABLED_ASN" = "xyes"])


# AES
AC_ARG_ENABLE([aes],
    [  --enable-aes            Enable AES (default: enabled)],
    [ ENABLED_AES=$enableval ],
    [ ENABLED_AES=yes ]
    )

if test "$ENABLED_AES" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_AES"
    if test "$ENABLED_FORTRESS" = "yes"
    then
        AC_MSG_ERROR([fortress requires aes])
    fi
    if test "$ENABLED_ECC_ENCRYPT" = "yes"
    then
        AC_MSG_ERROR([cannot enable eccencrypt and hkdf without aes.])
    fi
    if test "$ENABLED_AESGCM" = "yes"
    then
        AC_MSG_ERROR([AESGCM requires AES.])
    fi
    if test "$ENABLED_AESCCM" = "yes"
    then
        AC_MSG_ERROR([AESCCM requires AES.])
    fi
else
    # turn off AES if leanpsk on
    if test "$ENABLED_LEANPSK" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_AES"
        ENABLED_AES=no
    fi
fi

AM_CONDITIONAL([BUILD_AES], [test "x$ENABLED_AES" = "xyes"])


# CODING
AC_ARG_ENABLE([coding],
    [  --enable-coding         Enable Coding base 16/64 (default: enabled)],
    [ ENABLED_CODING=$enableval ],
    [ ENABLED_CODING=yes ]
    )

if test "$ENABLED_CODING" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_CODING"
else
    # turn off CODING if leanpsk on
    if test "$ENABLED_LEANPSK" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_CODING"
        ENABLED_CODING=no
    fi
fi

AM_CONDITIONAL([BUILD_CODING], [test "x$ENABLED_CODING" = "xyes"])


# Base64 Encode
BASE64ENCODE_DEFAULT=no
if test "$host_cpu" = "x86_64"
then
BASE64ENCODE_DEFAULT=yes
fi
AC_ARG_ENABLE([base64encode],
    [  --enable-base64encode   Enable Base64 encoding (default: enabled on x86_64)],
    [ ENABLED_BASE64ENCODE=$enableval ],
    [ ENABLED_BASE64ENCODE=$BASE64ENCODE_DEFAULT ]
    )
if test "$ENABLED_BASE64ENCODE" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_BASE64_ENCODE"
fi


# DES3
AC_ARG_ENABLE([des3],
    [AS_HELP_STRING([--enable-des3],[Enable DES3 (default: disabled)])],
    [ ENABLED_DES3=$enableval ],
    [ ENABLED_DES3=no ]
    )


# IDEA
AC_ARG_ENABLE([idea],
[AS_HELP_STRING([--enable-idea],[Enable IDEA Cipher (default: disabled)])],
[ ENABLED_IDEA=$enableval ],
[ ENABLED_IDEA=no ]
)

if test "x$ENABLED_IDEA" = "xyes"
then
AM_CFLAGS="$AM_CFLAGS -DHAVE_IDEA"
fi

AM_CONDITIONAL([BUILD_IDEA], [test "x$ENABLED_IDEA" = "xyes"])



# ARC4
AC_ARG_ENABLE([arc4],
    [  --enable-arc4           Enable ARC4 (default: disabled)],
    [ ENABLED_ARC4=$enableval ],
    [ ENABLED_ARC4=no ]
    )

if test "$ENABLED_OPENSSH" = "yes"
then
    ENABLED_ARC4="yes"
fi

if test "$ENABLED_ARC4" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_RC4"
else
    # turn off ARC4 if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_RC4"
        ENABLED_ARC4=no
    fi
fi

AM_CONDITIONAL([BUILD_RC4], [test "x$ENABLED_ARC4" = "xyes"])


# MD5
AC_ARG_ENABLE([md5],
    [  --enable-md5            Enable MD5 (default: enabled)],
    [ ENABLED_MD5=$enableval ],
    [ ENABLED_MD5=yes ]
    )

if test "$ENABLED_MD5" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_MD5 -DNO_OLD_TLS"
else
    # turn off MD5 if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_MD5 -DNO_OLD_TLS"
        ENABLED_MD5=no
    fi
fi

AM_CONDITIONAL([BUILD_MD5], [test "x$ENABLED_MD5" = "xyes"])


# SHA
AC_ARG_ENABLE([sha],
    [  --enable-sha            Enable SHA (default: enabled)],
    [ ENABLED_SHA=$enableval ],
    [ ENABLED_SHA=yes ]
    )

if test "$ENABLED_SHA" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_SHA -DNO_OLD_TLS"
else
    # turn off SHA if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_SHA -DNO_OLD_TLS"
        ENABLED_SHA=no
    fi
fi

AM_CONDITIONAL([BUILD_SHA], [test "x$ENABLED_SHA" = "xyes"])


# CMAC
AC_ARG_ENABLE([cmac],
    [AS_HELP_STRING([--enable-cmac],[Enable CMAC (default: disabled)])],
    [ ENABLED_CMAC=$enableval ],
    [ ENABLED_CMAC=no ]
    )

AS_IF([test "x$ENABLED_CMAC" = "xyes"],
      [AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CMAC -DWOLFSSL_AES_DIRECT"])

AM_CONDITIONAL([BUILD_CMAC], [test "x$ENABLED_CMAC" = "xyes"])


# Web Server Build
AC_ARG_ENABLE([webserver],
    [  --enable-webserver      Enable Web Server (default: disabled)],
    [ ENABLED_WEBSERVER=$enableval ],
    [ ENABLED_WEBSERVER=no ]
    )

if test "$ENABLED_WEBSERVER" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_WEBSERVER"
fi



# HC128
AC_ARG_ENABLE([hc128],
    [  --enable-hc128          Enable HC-128 (default: disabled)],
    [ ENABLED_HC128=$enableval ],
    [ ENABLED_HC128=no ]
    )

if test "$ENABLED_HC128" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_HC128"
else
    AM_CFLAGS="$AM_CFLAGS -DHAVE_HC128"
fi

AM_CONDITIONAL([BUILD_HC128], [test "x$ENABLED_HC128" = "xyes"])


# RABBIT
AC_ARG_ENABLE([rabbit],
    [  --enable-rabbit         Enable RABBIT (default: disabled)],
    [ ENABLED_RABBIT=$enableval ],
    [ ENABLED_RABBIT=no ]
    )

if test "$ENABLED_RABBIT" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_RABBIT"
else
    AM_CFLAGS="$AM_CFLAGS -DHAVE_RABBIT"
fi

AM_CONDITIONAL([BUILD_RABBIT], [test "x$ENABLED_RABBIT" = "xyes"])


# FIPS
AC_ARG_ENABLE([fips],
    [AS_HELP_STRING([--enable-fips],[Enable FIPS 140-2, Will NOT work w/o FIPS license (default: disabled)])],
    [ ENABLED_FIPS=$enableval ],
    [ ENABLED_FIPS=no ]
    )

if test "x$ENABLED_FIPS" = "xyes"
then
    # requires thread local storage
    if test "$thread_ls_on" = "no"
    then
        AC_MSG_ERROR([FIPS requires Thread Local Storage])
    fi
    # requires SHA512
    if test "x$ENABLED_SHA512" = "xno"
    then
        ENABLED_SHA512="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_SHA512 -DWOLFSSL_SHA384"
        AM_CONDITIONAL([BUILD_SHA512], [test "x$ENABLED_SHA512" = "xyes"])
    fi
    # requires AESGCM
    if test "x$ENABLED_AESGCM" != "xyes"
    then
        ENABLED_AESGCM="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_AESGCM"
        AM_CONDITIONAL([BUILD_SHA512], [test "x$ENABLED_SHA512" = "xyes"])
    fi
    # requires DES3
    if test "x$ENABLED_DES3" = "xno"
    then
        ENABLED_DES3="yes"
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_FIPS"
fi

AM_CONDITIONAL([BUILD_FIPS], [test "x$ENABLED_FIPS" = "xyes"])


# set POLY1305 default
POLY1305_DEFAULT=yes

if test "x$ENABLED_FIPS" = "xyes"
then
POLY1305_DEFAULT=no
fi

# POLY1305
AC_ARG_ENABLE([poly1305],
    [AS_HELP_STRING([--enable-poly1305],[Enable wolfSSL POLY1305 support (default: enabled)])],
    [ ENABLED_POLY1305=$enableval ],
    [ ENABLED_POLY1305=$POLY1305_DEFAULT]
    )

# leanpsk and leantls don't need poly1305
if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
then
    ENABLED_POLY1305=no
fi

if test "$ENABLED_POLY1305" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_POLY1305 -DHAVE_ONE_TIME_AUTH"
fi

AM_CONDITIONAL([BUILD_POLY1305], [test "x$ENABLED_POLY1305" = "xyes"])


# set CHACHA default
CHACHA_DEFAULT=yes

if test "x$ENABLED_FIPS" = "xyes"
then
CHACHA_DEFAULT=no
fi

# CHACHA
AC_ARG_ENABLE([chacha],
    [  --enable-chacha         Enable CHACHA (default: enabled)],
    [ ENABLED_CHACHA=$enableval ],
    [ ENABLED_CHACHA=$CHACHA_DEFAULT]
    )

# leanpsk and leantls don't need chacha
if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
then
    ENABLED_CHACHA=no
fi

if test "$ENABLED_CHACHA" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_CHACHA"
fi

AM_CONDITIONAL([BUILD_CHACHA], [test "x$ENABLED_CHACHA" = "xyes"])


# Hash DRBG
AC_ARG_ENABLE([hashdrbg],
    [  --enable-hashdrbg       Enable Hash DRBG support (default: enabled)],
    [ ENABLED_HASHDRBG=$enableval ],
    [ ENABLED_HASHDRBG=yes ]
    )

if test "x$ENABLED_HASHDRBG" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_HASHDRBG"
else
    # turn on Hash DRBG if FIPS is on or ARC4 is off
    if test "x$ENABLED_FIPS" = "xyes" || test "x$ENABLED_ARC4" = "xno"
    then
        AM_CFLAGS="$AM_CFLAGS -DHAVE_HASHDRBG"
        ENABLED_HASHDRBG=yes
    fi
fi


# Filesystem Build
AC_ARG_ENABLE([filesystem],
    [  --enable-filesystem     Enable Filesystem support (default: enabled)],
    [ ENABLED_FILESYSTEM=$enableval ],
    [ ENABLED_FILESYSTEM=yes ]
    )

if test "$ENABLED_FILESYSTEM" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_FILESYSTEM"
else
    # turn off filesystem if leanpsk on
    if test "$ENABLED_LEANPSK" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_FILESYSTEM"
        ENABLED_FILESYSTEM=no
    fi
fi


# inline Build
AC_ARG_ENABLE([inline],
    [  --enable-inline         Enable inline functions (default: enabled)],
    [ ENABLED_INLINE=$enableval ],
    [ ENABLED_INLINE=yes ]
    )

if test "$ENABLED_INLINE" = "no"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_INLINE"
fi

AM_CONDITIONAL([BUILD_INLINE], [test "x$ENABLED_INLINE" = "xyes"])


# OCSP
AC_ARG_ENABLE([ocsp],
    [  --enable-ocsp           Enable OCSP (default: disabled)],
    [ ENABLED_OCSP=$enableval ],
    [ ENABLED_OCSP=no ],
    )

if test "$ENABLED_OCSP" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_OCSP"
fi

AM_CONDITIONAL([BUILD_OCSP], [test "x$ENABLED_OCSP" = "xyes"])


if test "$ENABLED_OCSP" = "yes"
then
    # check openssl command tool for testing ocsp
    AC_CHECK_PROG([HAVE_OPENSSL_CMD],[openssl],[yes],[no])

    if test "$HAVE_OPENSSL_CMD" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DHAVE_OPENSSL_CMD"
    else
        AC_MSG_WARN([openssl command line tool not available for testing ocsp])
    fi
fi


# Certificate Status Request : a.k.a. OCSP Stapling
AC_ARG_ENABLE([ocspstapling],
    [AS_HELP_STRING([--enable-ocspstapling],[Enable OCSP Stapling (default: disabled)])],
    [ ENABLED_CERTIFICATE_STATUS_REQUEST=$enableval ],
    [ ENABLED_CERTIFICATE_STATUS_REQUEST=no ]
    )

if test "x$ENABLED_CERTIFICATE_STATUS_REQUEST" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_CERTIFICATE_STATUS_REQUEST"

    # Requires OCSP make sure on
    if test "x$ENABLED_OCSP" = "xno"
    then
        ENABLED_OCSP="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_OCSP"
        AM_CONDITIONAL([BUILD_OCSP], [test "x$ENABLED_OCSP" = "xyes"])
    fi
fi

AM_CONDITIONAL([BUILD_OCSP_STAPLING], [test "x$ENABLED_CERTIFICATE_STATUS_REQUEST" = "xyes"])

# Certificate Status Request v2 : a.k.a. OCSP stapling v2
AC_ARG_ENABLE([ocspstapling2],
    [AS_HELP_STRING([--enable-ocspstapling2],[Enable OCSP Stapling v2 (default: disabled)])],
    [ ENABLED_CERTIFICATE_STATUS_REQUEST_V2=$enableval ],
    [ ENABLED_CERTIFICATE_STATUS_REQUEST_V2=no ]
    )

if test "x$ENABLED_CERTIFICATE_STATUS_REQUEST_V2" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_CERTIFICATE_STATUS_REQUEST_V2"

    # Requires OCSP make sure on
    if test "x$ENABLED_OCSP" = "xno"
    then
        ENABLED_OCSP="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_OCSP"
        AM_CONDITIONAL([BUILD_OCSP], [test "x$ENABLED_OCSP" = "xyes"])
    fi
fi

AM_CONDITIONAL([BUILD_OCSP_STAPLING_V2], [test "x$ENABLED_CERTIFICATE_STATUS_REQUEST_V2" = "xyes"])

# CRL
AC_ARG_ENABLE([crl],
    [  --enable-crl            Enable CRL (default: disabled)],
    [ ENABLED_CRL=$enableval ],
    [ ENABLED_CRL=no ],
    )

if test "$ENABLED_CRL" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_CRL"
fi

AM_CONDITIONAL([BUILD_CRL], [test "x$ENABLED_CRL" = "xyes"])

# CRL Monitor
AC_ARG_ENABLE([crl-monitor],
    [  --enable-crl-monitor    Enable CRL Monitor (default: disabled)],
    [ ENABLED_CRL_MONITOR=$enableval ],
    [ ENABLED_CRL_MONITOR=no ],
    )

if test "$ENABLED_CRL_MONITOR" = "yes"
then
    case $host_os in
    *linux* | *darwin* | *freebsd*)
        AM_CFLAGS="$AM_CFLAGS -DHAVE_CRL_MONITOR" ;;
    *)
        AC_MSG_ERROR([crl monitor only allowed on linux, OS X, or freebsd]) ;;
    esac
fi

AM_CONDITIONAL([BUILD_CRL_MONITOR], [test "x$ENABLED_CRL_MONITOR" = "xyes"])


# USER CRYPTO
ENABLED_USER_CRYPTO="no"
ENABLED_USER_RSA="no"
AC_DEFINE([BUILD_USER_RSA], [], [User RSA is being defined])
trycryptodir=""
AC_ARG_WITH([user-crypto],
    [AS_HELP_STRING([--with-user-crypto=PATH],[Path to USER_CRYPTO install (default /usr/local)])],
    [
        CPPFLAGS="$CPPFLAGS -DHAVE_USER_CRYPTO"
        LIBS="$LIBS -lusercrypto"

        if test "x$withval" != "xno" ; then
            trycryptodir=$withval
        fi
        if test "x$withval" == "xyes" ; then
            trycryptodir="/usr/local"
        fi

        LDFLAGS="$LDFLAGS -L$trycryptodir/lib"
        CPPFLAGS="$CPPFLAGS -I$trycryptodir/include"

        #Look for RSA Init function in usercrypto lib
        AC_CHECK_LIB([usercrypto], [wc_InitRsaKey], [user_rsa_linked=yes], [user_rsa_linked=no])

       if test "x$user_rsa_linked" == "xyes" ; then
            AC_MSG_NOTICE([User user_rsa.h being used])
            AM_CFLAGS="$AM_CFLAGS -DHAVE_USER_RSA"
            ENABLED_USER_RSA=yes
            ENABLED_USER_CRYPTO=yes
       fi


        #Display check and find result of link attempts
        AC_MSG_CHECKING([for USER_CRYPTO])
        if test "x$ENABLED_USER_CRYPTO" == "xno" ; then
            AC_MSG_RESULT([no])
            AC_MSG_ERROR([USER_CRYPTO not found. Either move to /usr/include and /usr/lib or
                    Specify its path using --with-user-crypto=/dir/])
        else
            AC_MSG_RESULT([yes])
            # Check if .la is available if not then rely on exported path
            AC_CHECK_FILE($trycryptodir/lib/libusercrypto.la, [LIB_ADD="$trycryptodir/lib/libusercrypto.la $LIB_ADD"], [LIB_ADD="-lusercrypto $LIB_ADD"])
            AM_LDFLAGS="$AM_LDFLAGS -L$trycryptodir/lib"
            AM_CFLAGS="$AM_CFLAGS -DHAVE_USER_CRYPTO"
        fi
    ]
)

AM_CONDITIONAL([BUILD_USER_RSA], [test "x$ENABLED_USER_RSA" == "xyes"] )
AM_CONDITIONAL([BUILD_USER_CRYPTO], [test "x$ENABLED_USER_CRYPTO" = "xyes"])

if test "$ENABLED_USER_CRYPTO" = "yes" && test "$ENABLED_FIPS" = "yes"
then
    AC_MSG_ERROR([cannot enable user crypto and fips, user crypto posibility of using code in fips boundary.])
fi


# NTRU
ENABLED_NTRU="no"
tryntrudir=""
AC_ARG_WITH([ntru],
    [AS_HELP_STRING([--with-ntru=PATH],[Path to NTRU install (default /usr/)])],
    [
        AC_MSG_CHECKING([for NTRU])
        CPPFLAGS="$CPPFLAGS -DHAVE_NTRU -DHAVE_QSH -DHAVE_TLS_EXTENSIONS"
        LIBS="$LIBS -lntruencrypt"

        AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <libntruencrypt/ntru_crypto_drbg.h>]], [[ ntru_crypto_drbg_instantiate(0, 0, 0, 0, 0); ]])], [ ntru_linked=yes ],[ ntru_linked=no ])

        if test "x$ntru_linked" == "xno" ; then
            if test "x$withval" != "xno" ; then
                tryntrudir=$withval
            fi
            if test "x$withval" == "xyes" ; then
                tryntrudir="/usr"
            fi

            LDFLAGS="$AM_LDFLAGS $LDFLAGS -L$tryntrudir/lib"
            CPPFLAGS="$CPPFLAGS -I$tryntrudir/include"

            AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <libntruencrypt/ntru_crypto_drbg.h>]], [[ ntru_crypto_drbg_instantiate(0, 0, 0, 0, 0); ]])], [ ntru_linked=yes ],[ ntru_linked=no ])

            if test "x$ntru_linked" == "xno" ; then
                AC_MSG_ERROR([NTRU isn't found.
                If it's already installed, specify its path using --with-ntru=/dir/])
            fi
            AC_MSG_RESULT([yes])
            AM_LDFLAGS="$AM_LDFLAGS -L$tryntrudir/lib"
        else
            AC_MSG_RESULT([yes])
        fi

        AM_CFLAGS="$AM_CFLAGS -DHAVE_NTRU -DHAVE_QSH -DHAVE_TLS_EXTENSIONS"
        ENABLED_NTRU="yes"
    ]
)

AM_CONDITIONAL([BUILD_NTRU], [test "x$ENABLED_NTRU" = "xyes"])


# Whitewood netRandom client library
ENABLED_WNR="no"
trywnrdir=""
AC_ARG_WITH([wnr],
    [AS_HELP_STRING([--with-wnr=PATH],[Path to Whitewood netRandom install (default /usr/local)])],
    [
        AC_MSG_CHECKING([for Whitewood netRandom])
        CPPFLAGS="$CPPFLAGS -DHAVE_WNR"
        LIBS="$LIBS -lwnr"

        AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <wnr.h>]], [[ wnr_setup(0, 0); ]])], [ wnr_linked=yes ],[ wnr_linked=no ])

        if test "x$wnr_linked" == "xno" ; then
            if test "x$withval" != "xno" ; then
                trywnrdir=$withval
            fi
            if test "x$withval" == "xyes" ; then
                trywnrdir="/usr/local"
            fi

            LDFLAGS="$AM_LDFLAGS $LDFLAGS -L$trywnrdir/lib"
            CPPFLAGS="$CPPFLAGS -I$trywnrdir/include"

            AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <wnr.h>]], [[ wnr_setup(0, 0); ]])], [ wnr_linked=yes ],[ wnr_linked=no ])

            if test "x$wnr_linked" == "xno" ; then
                AC_MSG_ERROR([Whitewood netRandom isn't found.
                If it's already installed, specify its path using --with-wnr=/dir/])
            fi
            AC_MSG_RESULT([yes])
            AM_LDFLAGS="$AM_LDFLAGS -L$trywnrdir/lib"
        else
            AC_MSG_RESULT([yes])
        fi

        AM_CFLAGS="$AM_CFLAGS -DHAVE_WNR"
        ENABLED_WNR="yes"
    ]
)

AM_CONDITIONAL([BUILD_WNR], [test "x$ENABLED_WNR" = "xyes"])


# SNI
AC_ARG_ENABLE([sni],
    [  --enable-sni            Enable SNI (default: disabled)],
    [ ENABLED_SNI=$enableval ],
    [ ENABLED_SNI=no ]
    )

if test "x$ENABLED_SNI" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SNI"
fi

# Maximum Fragment Length
AC_ARG_ENABLE([maxfragment],
    [  --enable-maxfragment    Enable Maximum Fragment Length (default: disabled)],
    [ ENABLED_MAX_FRAGMENT=$enableval ],
    [ ENABLED_MAX_FRAGMENT=no ]
    )

# ALPN
AC_ARG_ENABLE([alpn],
    [  --enable-alpn            Enable ALPN (default: disabled)],
    [ ENABLED_ALPN=$enableval ],
    [ ENABLED_ALPN=no ]
    )

if test "x$ENABLED_ALPN" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_ALPN"
fi

# Maximum Fragment Length
if test "x$ENABLED_MAX_FRAGMENT" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_MAX_FRAGMENT"
fi

# Truncated HMAC
AC_ARG_ENABLE([truncatedhmac],
    [  --enable-truncatedhmac  Enable Truncated HMAC (default: disabled)],
    [ ENABLED_TRUNCATED_HMAC=$enableval ],
    [ ENABLED_TRUNCATED_HMAC=no ]
    )

if test "x$ENABLED_TRUNCATED_HMAC" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_TRUNCATED_HMAC"
fi

# Renegotiation Indication - (FAKE Secure Renegotiation)
AC_ARG_ENABLE([renegotiation-indication],
    [AS_HELP_STRING([--enable-renegotiation-indication],[Enable Renegotiation Indication (default: disabled)])],
    [ ENABLED_RENEGOTIATION_INDICATION=$enableval ],
    [ ENABLED_RENEGOTIATION_INDICATION=no ]
    )

if test "x$ENABLED_RENEGOTIATION_INDICATION" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_RENEGOTIATION_INDICATION"
fi

# Secure Renegotiation
AC_ARG_ENABLE([secure-renegotiation],
    [AS_HELP_STRING([--enable-secure-renegotiation],[Enable Secure Renegotiation (default: disabled)])],
    [ ENABLED_SECURE_RENEGOTIATION=$enableval ],
    [ ENABLED_SECURE_RENEGOTIATION=no ]
    )

if test "x$ENABLED_SECURE_RENEGOTIATION" = "xyes"
then
    if test "x$ENABLED_RENEGOTIATION_INDICATION" = "xyes"
    then
        AC_MSG_ERROR([cannot enable renegotiation-indication and secure-renegotiation.])
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SECURE_RENEGOTIATION"
fi

# Supported Elliptic Curves Extensions
AC_ARG_ENABLE([supportedcurves],
    [AS_HELP_STRING([--enable-supportedcurves],[Enable Supported Elliptic Curves (default: enabled)])],
    [ ENABLED_SUPPORTED_CURVES=$enableval ],
    [ ENABLED_SUPPORTED_CURVES=yes ]
    )

if test "x$ENABLED_SUPPORTED_CURVES" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SUPPORTED_CURVES"
fi

# Session Ticket Extension
AC_ARG_ENABLE([session-ticket],
    [AS_HELP_STRING([--enable-session-ticket],[Enable Session Ticket (default: disabled)])],
    [ ENABLED_SESSION_TICKET=$enableval ],
    [ ENABLED_SESSION_TICKET=no ]
    )

if test "x$ENABLED_SESSION_TICKET" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SESSION_TICKET"
fi

# TLS Extensions
AC_ARG_ENABLE([tlsx],
    [  --enable-tlsx           Enable all TLS Extensions (default: disabled)],
    [ ENABLED_TLSX=$enableval ],
    [ ENABLED_TLSX=no ]
    )

if test "x$ENABLED_TLSX" = "xyes"
then
	ENABLED_SNI=yes
	ENABLED_MAX_FRAGMENT=yes
	ENABLED_TRUNCATED_HMAC=yes
	ENABLED_SUPPORTED_CURVES=yes
	ENABLED_ALPN=yes
    AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SNI -DHAVE_MAX_FRAGMENT -DHAVE_TRUNCATED_HMAC -DHAVE_SUPPORTED_CURVES -DHAVE_ALPN"
fi

# PKCS7
AC_ARG_ENABLE([pkcs7],
    [AS_HELP_STRING([--enable-pkcs7],[Enable PKCS7 (default: disabled)])],
    [ ENABLED_PKCS7=$enableval ],
    [ ENABLED_PKCS7=no ],
    )


# Simple Certificate Enrollment Protocol (SCEP)
AC_ARG_ENABLE([scep],
    [  --enable-scep           Enable wolfSCEP (default: disabled)],
    [ ENABLED_WOLFSCEP=$enableval ],
    [ ENABLED_WOLFSCEP=no ]
    )


# Secure Remote Password
AC_ARG_ENABLE([srp],
    [  --enable-srp            Enable Secure Remote Password (default: disabled)],
    [ ENABLED_SRP=$enableval ],
    [ ENABLED_SRP=no ]
    )

if test "x$ENABLED_SRP" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFCRYPT_HAVE_SRP"
fi

AM_CONDITIONAL([BUILD_SRP], [test "x$ENABLED_SRP" = "xyes"])



# Small Stack
AC_ARG_ENABLE([smallstack],
    [  --enable-smallstack     Enable Small Stack Usage (default: disabled)],
    [ ENABLED_SMALL_STACK=$enableval ],
    [ ENABLED_SMALL_STACK=no ]
    )

if test "x$ENABLED_SMALL_STACK" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_SMALL_STACK"
fi


#valgrind
AC_ARG_ENABLE([valgrind],
    [  --enable-valgrind       Enable valgrind for unit tests (default: disabled)],
    [ ENABLED_VALGRIND=$enableval ],
    [ ENABLED_VALGRIND=no ]
    )

if test "$ENABLED_VALGRIND" = "yes"
then
    AC_CHECK_PROG([HAVE_VALGRIND],[valgrind],[yes],[no])

    if test "$HAVE_VALGRIND" = "no"
    then
        AC_MSG_ERROR([Valgrind not found.])
    fi
    enable_shared=no
    enable_static=yes
    AM_CFLAGS="$AM_CFLAGS -DHAVE_VALGRIND"
fi

AM_CONDITIONAL([USE_VALGRIND], [test "x$ENABLED_VALGRIND" = "xyes"])


# Test certs, use internal cert functions for extra testing
AC_ARG_ENABLE([testcert],
    [  --enable-testcert       Enable Test Cert (default: disabled)],
    [ ENABLED_TESTCERT=$enableval ],
    [ ENABLED_TESTCERT=no ]
    )

if test "$ENABLED_TESTCERT" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_TEST_CERT"
fi


# I/O Pool, an example to show user how to override memory handler and use
# a pool for the input/output buffer requests
AC_ARG_ENABLE([iopool],
    [  --enable-iopool         Enable I/O Pool example (default: disabled)],
    [ ENABLED_IOPOOL=$enableval ],
    [ ENABLED_IOPOOL=no ]
    )

if test "$ENABLED_IOPOOL" = "yes"
then
    if test "$thread_ls_on" = "no"
    then
        AC_MSG_ERROR([I/O Pool example requires Thread Local Storage])
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_IO_POOL -DXMALLOC_USER"
fi


# Certificate Service Support
AC_ARG_ENABLE([certservice],
    [  --enable-certservice    Enable cert service (default: disabled)],
    [ ENABLED_CERT_SERVICE=$enableval ],
    [ ENABLED_CERT_SERVICE=no ]
    )
if test "$ENABLED_CERT_SERVICE" = "yes"
then
    # Requires ecc,certgen, and opensslextra make sure on
    if test "x$ENABLED_CERTGEN" = "xno"
    then
        ENABLED_CERTGEN="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_GEN"
    fi
    if test "x$ENABLED_ECC" = "xno"
    then
        ENABLED_ECC="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_ECC -DTFM_ECC256"
        AM_CONDITIONAL([BUILD_ECC], [test "x$ENABLED_ECC" = "xyes"])
        
        if test "$ENABLED_ECC_SHAMIR" = "yes"
        then
            AM_CFLAGS="$AM_CFLAGS -DECC_SHAMIR"
        fi
    fi
    if test "x$ENABLED_OPENSSLEXTRA" = "xno"
    then
        ENABLED_OPENSSLEXTRA="yes"
        AM_CFLAGS="-DOPENSSL_EXTRA $AM_CFLAGS"
    fi
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_HAVE_CERT_SERVICE"
fi


# wolfSSL JNI
AC_ARG_ENABLE([jni],
    [  --enable-jni            Enable wolfSSL JNI (default: disabled)],
    [ ENABLED_JNI=$enableval ],
    [ ENABLED_JNI=no ]
    )
if test "$ENABLED_JNI" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_JNI"

    # Enable prereqs if not already enabled
    if test "x$ENABLED_DTLS" = "xno"
    then
        ENABLED_DTLS="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_DTLS"
    fi
    if test "x$ENABLED_OPENSSLEXTRA" = "xno"
    then
        ENABLED_OPENSSLEXTRA="yes"
        AM_CFLAGS="$AM_CFLAGS -DOPENSSL_EXTRA"
    fi
    if test "x$ENABLED_CRL" = "xno"
    then
        ENABLED_CRL="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_CRL"
        AM_CONDITIONAL([BUILD_CRL], [test "x$ENABLED_CRL" = "xyes"])
    fi
    if test "x$ENABLED_OCSP" = "xno"
    then
        ENABLED_OCSP="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_OCSP"
        AM_CONDITIONAL([BUILD_OCSP], [test "x$ENABLED_OCSP" = "xyes"])
    fi
    if test "x$ENABLED_CRL_MONITOR" = "xno"
    then
        ENABLED_CRL_MONITOR="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_CRL_MONITOR"
    fi
    if test "x$ENABLED_SAVESESSION" = "xno"
    then
        ENABLED_SAVESESSION="yes"
        AM_CFLAGS="$AM_CFLAGS -DPERSIST_SESSION_CACHE"
    fi
    if test "x$ENABLED_SAVECERT" = "xno"
    then
        ENABLED_SAVECERT="yes"
        AM_CFLAGS="$AM_CFLAGS -DPERSIST_CERT_CACHE"
    fi
    if test "x$ENABLED_ATOMICUSER" = "xno"
    then
        ENABLED_ATOMICUSER="yes"
        AM_CFLAGS="$AM_CFLAGS -DATOMIC_USER"
    fi
    if test "x$ENABLED_ECC" = "xno"
    then
        ENABLED_ECC="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_ECC -DTFM_ECC256"
        AM_CONDITIONAL([BUILD_ECC], [test "x$ENABLED_ECC" = "xyes"])
        
        if test "$ENABLED_ECC_SHAMIR" = "yes"
        then
            AM_CFLAGS="$AM_CFLAGS -DECC_SHAMIR"
        fi
    fi
    if test "x$ENABLED_PKCALLBACKS" = "xno"
    then
        ENABLED_PKCALLBACKS="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_PK_CALLBACKS"
    fi
    if test "x$ENABLED_DH" = "xno"
    then
        ENABLED_DH="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_DH"
    fi
    if test "x$ENABLED_PSK" = "xno"
    then
        ENABLED_PSK="yes"
    fi
fi


# lighty Support
AC_ARG_ENABLE([lighty],
    [  --enable-lighty         Enable lighttpd/lighty (default: disabled)],
    [ ENABLED_LIGHTY=$enableval ],
    [ ENABLED_LIGHTY=no ]
    )
if test "$ENABLED_LIGHTY" = "yes"
then
    # Requires opensslextra make sure on
    if test "x$ENABLED_OPENSSLEXTRA" = "xno"
    then
        ENABLED_OPENSSLEXTRA="yes"
        AM_CFLAGS="-DOPENSSL_EXTRA $AM_CFLAGS"
    fi
    AM_CFLAGS="$AM_CFLAGS -DHAVE_LIGHTY -DHAVE_WOLFSSL_SSL_H=1"
fi

# stunnel Support
AC_ARG_ENABLE([stunnel],
    [  --enable-stunnel        Enable stunnel (default: disabled)],
    [ ENABLED_STUNNEL=$enableval ],
    [ ENABLED_STUNNEL=no ]
    )
if test "$ENABLED_STUNNEL" = "yes"
then
    # Requires opensslextra make sure on
    if test "x$ENABLED_OPENSSLEXTRA" = "xno"
    then
        ENABLED_OPENSSLEXTRA="yes"
        AM_CFLAGS="-DOPENSSL_EXTRA $AM_CFLAGS"
    fi

    # Requires OCSP make sure on
    if test "x$ENABLED_OCSP" = "xno"
    then
        ENABLED_OCSP="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_OCSP"
        AM_CONDITIONAL([BUILD_OCSP], [test "x$ENABLED_OCSP" = "xyes"])
    fi

    # Requires coding make sure on
    if test "x$ENABLED_CODING" = "xno"
    then
        ENABLED_CODING="yes"
    fi

    # Requires sessioncerts make sure on
    if test "x$ENABLED_SESSIONCERTS" = "xno"
    then
        ENABLED_SESSIONCERTS="yes"
        AM_CFLAGS="$AM_CFLAGS -DSESSION_CERTS"
    fi

    # Requires crls, make sure on
    if test "x$ENABLED_CRL" = "xno"
    then
        ENABLED_CRL="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_CRL"
        AM_CONDITIONAL([BUILD_CRL], [test "x$ENABLED_CRL" = "xyes"])
    fi

    # Requires tlsx, make sure on
    if test "x$ENABLED_TLSX" = "xno"
    then
        ENABLED_TLSX="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_TLS_EXTENSIONS -DHAVE_SNI -DHAVE_MAX_FRAGMENT -DHAVE_TRUNCATED_HMAC -DHAVE_SUPPORTED_CURVES"
    fi

    # Requires ecc make sure on
    if test "x$ENABLED_ECC" = "xno"
    then
        ENABLED_OPENSSLEXTRA="yes"
        ENABLED_ECC="yes"
        AM_CFLAGS="$AM_CFLAGS -DHAVE_ECC -DTFM_ECC256"
        AM_CONDITIONAL([BUILD_ECC], [test "x$ENABLED_ECC" = "xyes"])
        
        if test "$ENABLED_ECC_SHAMIR" = "yes"
        then
            AM_CFLAGS="$AM_CFLAGS -DECC_SHAMIR"
        fi
    fi

    AM_CFLAGS="$AM_CFLAGS -DHAVE_STUNNEL -DWOLFSSL_ALWAYS_VERIFY_CB"
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_ALWAYS_KEEP_SNI"
fi

if test "$ENABLED_PSK" = "no" && test "$ENABLED_LEANPSK" = "no" \
    && test "x$ENABLED_STUNNEL" = "xno"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_PSK"
fi

if test "$ENABLED_PSK" = "no" &&  \
    (test "$ENABLED_LEANPSK" = "yes" || test "x$ENABLED_STUNNEL" = "xyes")
then
    ENABLED_PSK=yes
fi

# MD4
AC_ARG_ENABLE([md4],
    [  --enable-md4            Enable MD4 (default: disabled)],
    [ ENABLED_MD4=$enableval ],
    [ ENABLED_MD4=no ]
    )


if test "$ENABLED_MD4" = "no"
then
    #turn on MD4 if using stunnel
    if test "x$ENABLED_STUNNEL" = "xyes"
    then
        ENABLED_MD4="yes"
    else
        AM_CFLAGS="$AM_CFLAGS -DNO_MD4"
    fi
fi

AM_CONDITIONAL([BUILD_MD4], [test "x$ENABLED_MD4" = "xyes"])


# PWDBASED has to come after certservice since we want it on w/o explicit on
# PWDBASED
AC_ARG_ENABLE([pwdbased],
    [  --enable-pwdbased       Enable PWDBASED (default: disabled)],
    [ ENABLED_PWDBASED=$enableval ],
    [ ENABLED_PWDBASED=no ]
    )

if test "$ENABLED_PWDBASED" = "no"
then
    if test "$ENABLED_OPENSSLEXTRA" = "yes" || test "$ENABLED_WEBSERVER" = "yes"
    then
        # opensslextra and webserver needs pwdbased
        ENABLED_PWDBASED=yes
    else
        AM_CFLAGS="$AM_CFLAGS -DNO_PWDBASED"
    fi
fi

AM_CONDITIONAL([BUILD_PWDBASED], [test "x$ENABLED_PWDBASED" = "xyes"])


# wolfCrypt Only Build
AC_ARG_ENABLE([cryptonly],
    [AS_HELP_STRING([--enable-cryptonly],[Enable wolfCrypt Only build (default: disabled)])],
    [ENABLED_CRYPTONLY=$enableval],
    [ENABLED_CRYPTONLY=no])

if test "$ENABLED_CRYPTONLY" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFCRYPT_ONLY"
fi

AM_CONDITIONAL([BUILD_CRYPTONLY], [test "x$ENABLED_CRYPTONLY" = "xyes"])

if test "x$ENABLED_CRYPTONLY" = "xno"
then
    if test "x$ENABLED_PSK" = "xno" && test "x$ENABLED_ASN" = "xno"
    then
        AC_MSG_ERROR([please enable psk if disabling asn.])
    fi

    if test "x$ENABLED_ECC" = "xyes" && test "x$ENABLED_ASN" = "xno"
    then
        AC_MSG_ERROR([please disable ecc if disabling asn.])
    fi
fi


# set fastmath default
FASTMATH_DEFAULT=no

if test "$host_cpu" = "x86_64"
then
    FASTMATH_DEFAULT=yes
fi

# fastmath
AC_ARG_ENABLE([fastmath],
    [  --enable-fastmath       Enable fast math ops (default: enabled on x86_64)],
    [ ENABLED_FASTMATH=$enableval ],
    [ ENABLED_FASTMATH=$FASTMATH_DEFAULT]
    )

if test "x$ENABLED_FASTMATH" = "xyes"
then
    # turn off fastmth if leanpsk on or asn off (w/o DH and ECC)
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_ASN" = "no"
    then
        if test "$ENABLED_DH" = "no" && test "$ENABLED_ECC" = "no"
        then
            ENABLED_FASTMATH=no
        else
            AM_CFLAGS="$AM_CFLAGS -DUSE_FAST_MATH"
            ENABLED_SLOWMATH="no"
        fi
    else
        AM_CFLAGS="$AM_CFLAGS -DUSE_FAST_MATH"
        ENABLED_SLOWMATH="no"
    fi
    if test "$host_cpu" = "x86_64"
    then
        # Have settings.h set FP_MAX_BITS higher if user didn't set directly
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_X86_64_BUILD"
    fi
fi


# fast HUGE math
AC_ARG_ENABLE([fasthugemath],
    [  --enable-fasthugemath   Enable fast math + huge code (default: disabled)],
    [ ENABLED_FASTHUGEMATH=$enableval ],
    [ ENABLED_FASTHUGEMATH=no ]
    )

if test "$ENABLED_BUMP" = "yes"
then
    ENABLED_FASTHUGEMATH="yes"
fi

if test "$ENABLED_FASTHUGEMATH" = "yes"
then
    ENABLED_FASTMATH="yes"
    AM_CFLAGS="$AM_CFLAGS -DUSE_FAST_MATH"
    ENABLED_SLOWMATH="no"
fi

AM_CONDITIONAL([BUILD_FASTMATH], [test "x$ENABLED_FASTMATH" = "xyes"])
AM_CONDITIONAL([BUILD_SLOWMATH], [test "x$ENABLED_SLOWMATH" = "xyes"])


# Enable Examples, used to disable examples
AC_ARG_ENABLE([examples],
    [  --enable-examples       Enable Examples  (default: enabled)],
    [ ENABLED_EXAMPLES=$enableval ],
    [ ENABLED_EXAMPLES=yes ]
    )

AS_IF([test "x$ENABLED_FILESYSTEM" = "xno"], [ENABLED_EXAMPLES="no"])
AS_IF([test "x$ENABLED_INLINE" = "xno"], [ENABLED_EXAMPLES="no"])
AS_IF([test "x$ENABLED_CRYPTONLY" = "xyes"], [ENABLED_EXAMPLES="no"])
AM_CONDITIONAL([BUILD_EXAMPLE_SERVERS], [test "x$ENABLED_EXAMPLES" = "xyes" && test "x$ENABLED_LEANTLS" = "xno"])
AM_CONDITIONAL([BUILD_EXAMPLE_CLIENTS], [test "x$ENABLED_EXAMPLES" = "xyes"])
AM_CONDITIONAL([BUILD_TESTS], [test "x$ENABLED_EXAMPLES" = "xyes" && test "x$ENABLED_LEANTLS" = "xno"])

# Enable wolfCrypt test and benchmark
AC_ARG_ENABLE([crypttests],
    [  --enable-crypttests     Enable Crypt Bench/Test  (default: enabled)],
    [ ENABLED_CRYPT_TESTS=$enableval ],
    [ ENABLED_CRYPT_TESTS=yes ]
    )

AM_CONDITIONAL([BUILD_WOLFCRYPT_TESTS], [test "x$ENABLED_CRYPT_TESTS" = "xyes"])

# LIBZ
ENABLED_LIBZ="no"
trylibzdir=""
AC_ARG_WITH([libz],
    [  --with-libz=PATH        PATH to libz install (default /usr/) ],
    [
        AC_MSG_CHECKING([for libz])
        CPPFLAGS="$CPPFLAGS -DHAVE_LIBZ"
        LIBS="$LIBS -lz"

        AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <zlib.h>]], [[ deflateInit(0, 8); ]])],[ libz_linked=yes ],[ libz_linked=no ])

        if test "x$libz_linked" == "xno" ; then
            if test "x$withval" != "xno" ; then
                trylibzdir=$withval
            fi
            if test "x$withval" == "xyes" ; then
                trylibzdir="/usr"
            fi

            AM_LDFLAGS="$AM_LDFLAGS -L$trylibzdir/lib"
            CPPFLAGS="$CPPFLAGS -I$trylibzdir/include"

            AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <zlib.h>]], [[ deflateInit(0, 8); ]])],[ libz_linked=yes ],[ libz_linked=no ])

            if test "x$libz_linked" == "xno" ; then
                AC_MSG_ERROR([libz isn't found.
                If it's already installed, specify its path using --with-libz=/dir/])
            fi
            AC_MSG_RESULT([yes])
        else
            AC_MSG_RESULT([yes])
        fi
        ENABLED_LIBZ="yes"
    ]
)
AM_CONDITIONAL([BUILD_LIBZ], [test "x$ENABLED_LIBZ" = "xyes"])


# cavium
trycaviumdir=""
AC_ARG_WITH([cavium],
    [  --with-cavium=PATH      PATH to cavium/software dir ],
    [
        AC_MSG_CHECKING([for cavium])
        CPPFLAGS="$CPPFLAGS -DHAVE_CAVIUM"

        if test "x$withval" == "xyes" ; then
            AC_MSG_ERROR([need a PATH for --with-cavium])
        fi
        if test "x$withval" != "xno" ; then
            trycaviumdir=$withval
        fi

        LDFLAGS="$AM_LDFLAGS $trycaviumdir/api/cavium_common.o"
        CPPFLAGS="$CPPFLAGS -I$trycaviumdir/include"

        AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "cavium_common.h"]], [[ CspShutdown(CAVIUM_DEV_ID); ]])],[ cavium_linked=yes ],[ cavium_linked=no ])

        if test "x$cavium_linked" == "xno" ; then
            AC_MSG_ERROR([cavium isn't found.
            If it's already installed, specify its path using --with-cavium=/dir/])
        fi
        AC_MSG_RESULT([yes])
        enable_shared=no
        enable_static=yes
        ENABLED_CAVIUM=yes
    ],
    [ ENABLED_CAVIUM=no ]
)

# cavium V
trycaviumdir=""
AC_ARG_WITH([cavium-v],
    [  --with-cavium-v=PATH    PATH to Cavium V/software dir ],
    [
        AC_MSG_CHECKING([for cavium])
        CPPFLAGS="$CPPFLAGS -DHAVE_CAVIUM -DHAVE_CAVIUM_V"

        if test "x$withval" == "xyes" ; then
            AC_MSG_ERROR([need a PATH for --with-cavium])
        fi
        if test "x$withval" != "xno" ; then
            trycaviumdir=$withval
        fi

        LDFLAGS="$AM_LDFLAGS $trycaviumdir/utils/sample_tests/cavium_common.o $trycaviumdir/utils/sample_tests/cavium_sym_crypto.o $trycaviumdir/utils/sample_tests/cavium_asym_crypto.o"
        CPPFLAGS="$CPPFLAGS -I$trycaviumdir/include"

        #AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "cavium_common.h"]], [[ CspShutdown(0); ]])],[ cavium_linked=yes ],[ cavium_linked=no ])

        if test "x$cavium_linked" == "xno" ; then
            AC_MSG_ERROR([cavium isn't found.
            If it's already installed, specify its path using --with-cavium-v=/dir/])
        fi
        AC_MSG_RESULT([yes])

        enable_shared=no
        enable_static=yes
        ENABLED_CAVIUM=yes
        ENABLED_CAVIUM_V=yes
    ],
    [
        ENABLED_CAVIUM_=no
        ENABLED_CAVIUM_V=no
    ]
)

AM_CONDITIONAL([BUILD_CAVIUM], [test "x$ENABLED_CAVIUM" = "xyes"])


# Fast RSA using Intel IPP
ippdir="${srcdir}/IPP"
ipplib="lib" # if autoconf guesses 32bit system changes lib directory
fastRSA_found=no
abs_path=`pwd`

# set up variables used
IPPLIBS=
IPPHEADERS=
IPPLINK=

AC_ARG_ENABLE([fast-rsa],
    [AS_HELP_STRING([--enable-fast-rsa],[Enable RSA using Intel IPP (default: disabled)])],
    [ ENABLED_FAST_RSA=$enableval ],
    [ ENABLED_FAST_RSA=no ],
    )

if test "$ENABLED_USER_RSA" = "no" && test "$ENABLED_FIPS" = "no"; then

    if test "$ac_cv_sizeof_long" = "4" && test "$ac_cv_sizeof_long_long" = "8"; then
        ipplib="lib_32" # 32 bit OS detected
    fi

#   Use static IPP Libraries
if test "$enable_shared" = "no" && test "$ENABLED_FAST_RSA" = "yes"; then
    case $host_os in
    *darwin*)
        ipplib="$ipplib/mac_static"
        AC_MSG_ERROR([Issue with static linking to libippcp.a on Mac.
                Dynamic IPP libraries supported on Mac])
        break;;

    *linux*)
        ipplib="$ipplib/linux_static"
        break;;
    *)
        ENABLED_FAST_RSA=no
    esac

    AC_CHECK_FILES([$srcdir/IPP/$ipplib/libippcore.a $srcdir/IPP/$ipplib/libippcp.a], [], [ENABLED_FAST_RSA=no])
    AC_CHECK_FILES([$srcdir/IPP/include/ipp.h $srcdir/IPP/include/ippcp.h], [AM_CPPFLAGS="-I$srcdir/IPP/include $AM_CPPFLAGS"], [ENABLED_FAST_RSA=no])
    LIB_STATIC_ADD="$srcdir/IPP/$ipplib/libippcp.a $srcdir/IPP/$ipplib/libippcore.a $LIB_STATIC_ADD"
    if test "$ENABLED_FAST_RSA" = "no"; then
        AC_MSG_ERROR([Could not find fast rsa libraries])
    fi
else

#   Check for and use bundled IPP libraries
if test "$ENABLED_FAST_RSA" = "yes"; then
    AC_MSG_NOTICE([Using local IPP crypto library])

    AC_CHECK_FILES([$abs_path/IPP/include/ippcp.h],
    [
        # build and default locations on linux and mac
        STORE_LDFLAGS=${LDFLAGS}
        STORE_CPPFLAGS=${CPPFLAGS}

        # using LDFLAGS instead of AM_ temporarily to test link to library
        LDFLAGS="-L$ippdir/$ipplib -lippcp -lippcore"
        CPPFLAGS="-I$ippdir/include"
        AC_CHECK_HEADERS([ippcp.h], [AC_CHECK_LIB([ippcp], [ippsRSAEncrypt_PKCSv15], [fastRSA_found=yes], [fastRSA_found=no])], [fastRSA_found=no])
        name="$ippdir/$ipplib/libippcp"
        case $host_os in
        *darwin*)
            # check file existence and conditionally set variables
            AC_CHECK_FILES([$abs_path/IPP/$ipplib/libippcp.dylib], [
            IPPLIBS="${name}.dylib ${name}-9.0.dylib ${name}e9-9.0.dylib ${name}g9-9.0.dylib ${name}h9-9.0.dylib ${name}k0-9.0.dylib ${name}l9-9.0.dylib ${name}n8-9.0.dylib ${name}p8-9.0.dylib ${name}s8-9.0.dylib ${name}y8-9.0.dylib IPP/lib/libippcore.dylib IPP/lib/libippcore-9.0.dylib"
            IPPLINK="mkdir -p src/.libs && ln -f ${name}.dylib src/.libs/libippcp.dylib && ln -f ${srcdir}/${name}-9.0.dylib src/.libs/libippcp-9.0.dylib && ln -f ${srcdir}/${name}e9-9.0.dylib src/.libs/libippcpe9-9.0.dylib && ln -f ${srcdir}/${name}g9-9.0.dylib src/.libs/libippcpg9-9.0.dylib && ln -f ${srcdir}/${name}h9-9.0.dylib src/.libs/libippcph9-9.0.dylib && ln -f ${srcdir}/${name}k0-9.0.dylib src/.libs/libippcpk0-9.0.dylib && ln -f ${srcdir}/${name}l9-9.0.dylib src/.libs/libippcpl9-9.0.dylib && ln -f ${srcdir}/${name}n8-9.0.dylib src/.libs/libippcpn8-9.0.dylib && ln -f ${srcdir}/${name}p8-9.0.dylib src/.libs/libippcpp8-9.0.dylib && ln -f ${srcdir}/${name}s8-9.0.dylib src/.libs/libippcps8-9.0.dylib && ln -f ${srcdir}/${name}y8-9.0.dylib src/.libs/libippcpy8-9.0.dylib && ln -f ${srcdir}/IPP/lib/libippcore.dylib src/.libs/libippcore.dylib && ln -f ${srcdir}/IPP/lib/libippcore-9.0.dylib src/.libs/libippcore-9.0.dylib"
            ], [fastRSA_found=no])
            break;;

        *linux*)
            # check file existence and conditionally set variables
            AC_CHECK_FILES([$abs_path/IPP/$ipplib/libippcp.so.9.0], [
            if test "$ac_cv_sizeof_long" = "4" && test "$ac_cv_sizeof_long_long" = "8"; then
                IPPLIBS="${name}.so.9.0 ${name}g9.so.9.0 ${name}h9.so.9.0 ${name}p8.so.9.0 ${name}px.so.9.0 ${name}s8.so.9.0 ${name}.so ${name}w7.so.9.0 IPP/$ipplib/libippcore.so IPP/$ipplib/libippcore.so.9.0"
                IPPLINK="mkdir -p src/.libs && ln -f ${name}.so.9.0 src/.libs/libippcp.so.9.0 && ln -f ${name}g9.so.9.0 src/.libs/libippcpg9.so.9.0 && ln -f ${name}h9.so.9.0 src/.libs/libippcph9.so.9.0 && ln -f ${name}p8.so.9.0 src/.libs/libippcpp8.so.9.0 && ln -f ${name}px.so.9.0 src/.libs/libippcppx.so.9.0 && ln -f ${name}s8.so.9.0 src/.libs/libippcps8.so.9.0 && ln -f ${name}.so src/.libs/libippcp.so && ln -f ${name}w7.so.9.0 src/.libs/libippcpw7.so.9.0 && ln -f IPP/$ipplib/libippcore.so src/.libs/libippcore.so && ln -f IPP/$ipplib/libippcore.so.9.0 src/.libs/libippcore.so.9.0"
                else
                IPPLIBS="${name}.so.9.0 ${name}e9.so.9.0 ${name}k0.so.9.0 ${name}l9.so.9.0 ${name}m7.so.9.0 ${name}mx.so.9.0 ${name}.so ${name}n8.so.9.0 ${name}y8.so.9.0 IPP/lib/libippcore.so IPP/lib/libippcore.so.9.0"
                IPPLINK="mkdir -p src/.libs && ln -f ${name}.so.9.0 src/.libs/libippcp.so.9.0 && ln -f ${name}e9.so.9.0 src/.libs/libippcpe9.so.9.0 && ln -f ${name}k0.so.9.0 src/.libs/libippcpk0.so.9.0 && ln -f ${name}l9.so.9.0 src/.libs/libippcpl9.so.9.0 && ln -f ${name}m7.so.9.0 src/.libs/libippcpm7.so.9.0 && ln -f ${name}mx.so.9.0 src/.libs/libippcpmx.so.9.0 && ln -f ${name}.so src/.libs/libippcp.so && ln -f ${name}n8.so.9.0 src/.libs/libippcpn8.so.9.0 && ln -f ${name}y8.so.9.0 src/.libs/libippcpy8.so.9.0 && ln -f IPP/lib/libippcore.so src/.libs/libippcore.so && ln -f IPP/lib/libippcore.so.9.0 src/.libs/libippcore.so.9.0"
            fi
            ], [fastRSA_found=no])
            break;;
        *)
            fastRSA_found=no
        esac

        if test "$fastRSA_found" = "yes"; then
            # was succesfull so add tested LDFLAGS to AM_ flags
            AM_LDFLAGS="${AM_LDFLAGS} ${LDFLAGS}"
            AM_CPPFLAGS="${AM_CPPFLAGS} ${CPPFLAGS}"
            IPPHEADERS="${srcdir}/IPP/include/*.h"
        fi

        # restore LDFLAGS to user set
        LDFLAGS=${STORE_LDFLAGS}
        CPPFLAGS=${STORE_CPPFLAGS}
    ], [fastRSA_found=no])
fi

# Don't cache the result so it can be checked
AS_UNSET([ac_cv_header_ippcp_h])
AS_UNSET([ac_cv_header_ipp_h])
AS_UNSET([ac_cv_lib_ippcp_ippsRSAEncrypt_PKCSv15]);

#   Check link and see if user has pre-existing IPP Libraries if not using local
if test "$ENABLED_FAST_RSA" = "yes" && test "$fastRSA_found" = "no"; then
    AC_MSG_NOTICE([Checking if IPP crypto library installed])
    AC_CHECK_HEADER([ippcp.h], [AC_CHECK_LIB([ippcp], [ippsRSAEncrypt_PKCSv15],
        [
            fastRSA_found=yes
            AM_LDFLAGS="${AM_LDFLAGS} -lippcore -lippcp"
        ], [ fastRSA_found=no])
    ], [fastRSA_found=no])

    # Error out on not finding libraries
    if test "$fastRSA_found" = "no"; then
        AC_MSG_ERROR([Could not find fast rsa libraries])
    fi
fi
fi # end of if for shared library
else # if user rsa is set than do not use fast rsa option
    if test "$ENABLED_FAST_RSA" = "yes"; then
        AC_MSG_ERROR([Could not use fast rsa libraries with user crypto or fips])
    fi
fi # end of if for user rsa crypto or fips

#   End result of checking for IPP Libraries
AC_MSG_CHECKING([for fast RSA])
if test "$ENABLED_FAST_RSA" = "yes"; then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_FAST_RSA -DHAVE_USER_RSA"
    # add in user crypto header that uses Intel IPP
    AM_CPPFLAGS="$AM_CPPFLAGS -I$srcdir/wolfcrypt/user-crypto/include"
    if test "$enable_shared" = "yes"; then
        LIBS="$LIBS -lippcore -lippcp"
        LIB_ADD="-lippcp -lippcore $LIB_ADD"
    else
        LIB_ADD="$srcdir/IPP/$ipplib/libippcp.a $srcdir/IPP/$ipplib/libippcore.a $LIB_ADD"
    fi
    AC_MSG_RESULT([yes])
else
    AC_MSG_RESULT([no])
fi

AC_SUBST([IPPLIBS])
AC_SUBST([IPPHEADERS])
AC_SUBST([IPPLINK])
AM_CONDITIONAL([BUILD_FAST_RSA], [test "x$ENABLED_FAST_RSA" = "xyes"])


# static memory use
AC_ARG_ENABLE([staticmemory],
    [AS_HELP_STRING([--enable-staticmemory],[Enable static memory use (default: disabled)])],
    [ ENABLED_STATICMEMORY=$enableval ],
    [ ENABLED_STATICMEMORY=no ]
    )

if test "x$ENABLED_STATICMEMORY" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_STATIC_MEMORY"
    if test "x$ENABLED_FASTMATH" = "xno"
    then
        AC_MSG_ERROR([please use --enable-fastmath if enabling staticmemory.])
    fi
fi


# microchip api
AC_ARG_ENABLE([mcapi],
    [  --enable-mcapi          Enable Microchip API (default: disabled)],
    [ ENABLED_MCAPI=$enableval ],
    [ ENABLED_MCAPI=no ]
    )

if test "$ENABLED_MCAPI" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_MCAPI -DWOLFSSL_AES_COUNTER -DWOLFSSL_AES_DIRECT"
fi

if test "$ENABLED_MCAPI" = "yes" && test "$ENABLED_SHA512" = "no"
then
    AC_MSG_ERROR([please enable sha512 if enabling mcapi.])
fi

if test "$ENABLED_MCAPI" = "yes" && test "$ENABLED_ECC" = "no"
then
    AC_MSG_ERROR([please enable ecc if enabling mcapi.])
fi

if test "$ENABLED_MCAPI" = "yes" && test "$ENABLED_LIBZ" = "no"
then
    AC_MSG_ERROR([please use --with-libz if enabling mcapi.])
fi

AM_CONDITIONAL([BUILD_MCAPI], [test "x$ENABLED_MCAPI" = "xyes"])


# Asynchronous Crypto
AC_ARG_ENABLE([asynccrypt],
    [  --enable-asynccrypt    Enable Asynchronous Crypto (default: disabled)],
    [ ENABLED_ASYNCCRYPT=$enableval ],
    [ ENABLED_ASYNCCRYPT=no ]
    )

if test "$ENABLED_ASYNCCRYPT" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_ASYNC_CRYPT -DHAVE_WOLF_EVENT"
    
    # if Cavium not enabled the use async simulator for testing
    if test "x$ENABLED_CAVIUM" = "xno"
    then
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_ASYNC_CRYPT_TEST"
    fi
fi

AM_CONDITIONAL([BUILD_ASYNCCRYPT], [test "x$ENABLED_ASYNCCRYPT" = "xyes"])

AM_CONDITIONAL([BUILD_WOLFEVENT], [test "x$ENABLED_ASYNCCRYPT" = "xyes"])



# Session Export
AC_ARG_ENABLE([sessionexport],
    [AS_HELP_STRING([--enable-sessionexport],[Enable export and import of sessions (default: disabled)])],
    [ ENABLED_SESSIONEXPORT=$enableval ],
    [ ENABLED_SESSIONEXPORT=no ]
    )

if test "$ENABLED_SESSIONEXPORT" = "yes"
then
    if test "$ENABLED_DTLS" = "no"
    then
        AC_MSG_ERROR([Only DTLS supported with session export])
    fi
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_SESSION_EXPORT"
fi


# check if PSK was enabled for conditionally running psk.test script
AM_CONDITIONAL([BUILD_PSK], [test "x$ENABLED_PSK" = "xyes"])


# check if should run the trusted peer certs test
# (for now checking both C_FLAGS and C_EXTRA_FLAGS)
case $C_EXTRA_FLAGS in
    *WOLFSSL_TRUST_PEER_CERT*)
        have_tp=yes
        break;;
    *)
        have_tp=no ;;
esac
if test "$have_tp" = "no"; then
    case $C_FLAGS in
    *WOLFSSL_TRUST_PEER_CERT*)
        have_tp=yes
        break;;
    *)
        have_tp=no ;;
    esac
fi
AM_CONDITIONAL([BUILD_TRUST_PEER_CERT], [test "x$have_tp" = "xyes"])


################################################################################
# Check for build-type conflicts                                               #
################################################################################

AS_IF([test "x$ENABLED_MAXSTRENGTH" = "xyes" && \
       test "x$ENABLED_LEANPSK" = "xyes"],
      [AC_MSG_ERROR([Cannot use Max Strength and Lean PSK at the same time.])])

AS_IF([test "x$ENABLED_OCSP" = "xyes" && \
       test "x$ENABLED_ASN" = "xno"],
      [AC_MSG_ERROR([please enable asn if enabling ocsp.])])

AS_IF([test "x$ENABLED_OCSP" = "xyes" && \
       test "x$ENABLED_RSA" = "xno" && \
       test "x$ENABLED_ECC" = "xno"],
      [AC_MSG_ERROR([please enable rsa or ecc if enabling ocsp.])])

# checks for pkcs7 needed enables
AS_IF([test "x$ENABLED_PKCS7" = "xyes" && \
       test "x$ENABLED_RSA" = "xno"],
      [AC_MSG_ERROR([please enable rsa if enabling pkcs7.])])

AS_IF([test "x$ENABLED_PKCS7" = "xyes" && \
       test "x$ENABLED_SHA" = "xno"],
      [AC_MSG_ERROR([please enable sha if enabling pkcs7.])])

AS_IF([test "x$ENABLED_LEANTLS" = "xyes" && \
       test "x$ENABLED_ECC" = "xno"],
      [AC_MSG_ERROR([please enable ecc if enabling leantls.])])

AS_IF([test "x$ENABLED_SNIFFER" = "xyes" && \
       test "x$ENABLED_RSA" = "xno"],
      [AC_MSG_ERROR([please enable rsa if enabling sniffer.])])

# Lean TLS forces off prereqs of SCEP.
AS_IF([test "x$ENABLED_SCEP" = "xyes" && \
       test "x$ENABLED_LEANTLS" = "xyes"],
      [AC_MSG_ERROR([Cannot use SCEP and Lean TLS at the same time.])])

# CMAC currently requires AES.
AS_IF([test "x$ENABLED_CMAC" = "xyes" && \
       test "x$ENABLED_AES" = "xno"],
      [AC_MSG_ERROR([cannot use CMAC without AES.])])

################################################################################
# Update CFLAGS based on options                                               #
################################################################################

if test "$ENABLED_WOLFSCEP" = "yes"
then
    # Enable prereqs if not already enabled
    if test "x$ENABLED_KEYGEN" = "xno"
    then
        ENABLED_KEYGEN="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_KEY_GEN"
    fi
    if test "x$ENABLED_CERTGEN" = "xno"
    then
        ENABLED_CERTGEN="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_GEN"
    fi
    if test "x$ENABLED_CERTREQ" = "xno"
    then
        ENABLED_CERTREQ="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_REQ"
    fi
    if test "x$ENABLED_CERTEXT" = "xno"
    then
        ENABLED_CERTEXT="yes"
        AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CERT_EXT"
    fi
    if test "x$ENABLED_PKCS7" = "xno"
    then
        ENABLED_PKCS7="yes"
    fi
    AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_HAVE_WOLFSCEP"
fi

if test "x$ENABLED_PKCS7" = "xyes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE_PKCS7"
    # Enable prereqs if not already enabled
    AS_IF([test "x$ENABLED_DES3" = "xno"],
          [ENABLED_DES3=yes])
fi

if test "x$ENABLED_DES3" = "xno"
then
    AM_CFLAGS="$AM_CFLAGS -DNO_DES3"
else
    # turn off DES3 if leanpsk or leantls on
    if test "$ENABLED_LEANPSK" = "yes" || test "$ENABLED_LEANTLS" = "yes"
    then
        AM_CFLAGS="$AM_CFLAGS -DNO_DES3"
        ENABLED_DES3=no
    fi
fi

AM_CONDITIONAL([BUILD_DES3], [test "x$ENABLED_DES3" = "xyes"])
AM_CONDITIONAL([BUILD_PKCS7], [test "x$ENABLED_PKCS7" = "xyes"])

AS_IF([test "x$ENABLED_MAXSTRENGTH" = "xyes"],
      [AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_MAX_STRENGTH"])

AS_IF([test "x$ENABLED_MAXSTRENGTH" = "xyes" && \
       test "x$ENABLED_OLD_TLS" = "xyes"],
      [AM_CFLAGS="$AM_CFLAGS -DNO_OLD_TLS"
       ENABLED_OLD_TLS=no])

AS_IF([test "x$ENABLED_MAXSTRENGTH" = "xyes" && \
       test "x$ENABLED_SSLV3" = "xyes"],
      [AC_MSG_ERROR([Cannot use Max Strength and SSLv3 at the same time.])])

AS_IF([test "x$ENABLED_SCTP" = "xyes"],
      [AM_CFLAGS="-DWOLFSSL_SCTP $AM_CFLAGS"])

# SCTP requires DTLS
AS_IF([test "x$ENABLED_DTLS" = "xno" && \
       test "x$ENABLED_SCTP" = "xyes"],
      [AM_CFLAGS="-DWOLFSSL_DTLS $AM_CFLAGS"
       ENABLED_DTLS=yes])

################################################################################

# OPTIMIZE FLAGS
if test "$GCC" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -Wall -Wno-unused"
    if test "$ax_enable_debug" = "no"
    then
        if test "$ENABLED_FASTMATH" = "yes"
        then
            AM_CFLAGS="$AM_CFLAGS $OPTIMIZE_FAST_CFLAGS"
            if test "$ENABLED_FASTHUGEMATH" = "yes"
            then
                AM_CFLAGS="$AM_CFLAGS $OPTIMIZE_HUGE_CFLAGS"
            fi
        else
            AM_CFLAGS="$AM_CFLAGS $OPTIMIZE_CFLAGS"
        fi
    fi
fi

# ICC command line warning for non supported warning flags
if test "$CC" = "icc"
then
    AM_CFLAGS="$AM_CFLAGS -wd10006"
fi

# Expose HAVE___UINT128_T to options flags"
if test "$ac_cv_type___uint128_t" = "yes"
then
    AM_CFLAGS="$AM_CFLAGS -DHAVE___UINT128_T"
fi


LIB_SOCKET_NSL
AX_HARDEN_CC_COMPILER_FLAGS

# if mingw then link to ws2_32 for sockets
case $host_os in
    mingw*)
        LDFLAGS="$LDFLAGS -lws2_32"
        if test "$enable_shared" = "yes"
        then
            AC_DEFINE([WOLFSSL_DLL], [1], [Use __declspec(dllexport) when building library])
            if test "$enable_static" = "yes"
            then
                MINGW_LIB_WARNING="yes"
            fi
        fi ;;
esac

# add user C_EXTRA_FLAGS back
CFLAGS="$CFLAGS $USER_C_EXTRA_FLAGS"
OPTION_FLAGS="$USER_CFLAGS $USER_C_EXTRA_FLAGS $AM_CFLAGS"

CREATE_HEX_VERSION
AC_SUBST([AM_CPPFLAGS])
AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_LDFLAGS])
AC_SUBST([AM_CCASFLAGS])
AC_SUBST([LIB_ADD])
AC_SUBST([LIB_STATIC_ADD])

# FINAL
AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
AC_CONFIG_FILES([Makefile])
AC_CONFIG_FILES([wolfssl/version.h])
AC_CONFIG_FILES([wolfssl/options.h])
#have options.h and version.h for autoconf fips tag and build
#if test "x$ENABLED_FIPS" = "xyes"
#then
#    AC_CONFIG_FILES([cyassl/version.h])
#    AC_CONFIG_FILES([cyassl/options.h])
#fi
AC_CONFIG_FILES([support/wolfssl.pc])
AC_CONFIG_FILES([rpm/spec])

AX_CREATE_GENERIC_CONFIG
AX_AM_JOBSERVER([yes])

AC_OUTPUT


# force make clean
echo "---"
echo "Running make clean..."
make clean >/dev/null 2>&1

# generate user options header
echo "---"
echo "Generating user options header..."

OPTION_FILE="wolfssl/options.h"
#if
#OPTION_FILE+="cyassl/options.h"
#fi
rm -f $OPTION_FILE

echo "/* wolfssl options.h" > $OPTION_FILE
echo " * generated from configure options" >> $OPTION_FILE
echo " *" >> $OPTION_FILE
echo " * Copyright (C) 2006-2015 wolfSSL Inc." >> $OPTION_FILE
echo " *" >> $OPTION_FILE
echo " * This file is part of wolfSSL. (formerly known as CyaSSL)" >> $OPTION_FILE
echo " *" >> $OPTION_FILE
echo " */" >> $OPTION_FILE

echo "" >> $OPTION_FILE
echo "#ifndef WOLFSSL_OPTIONS_H" >> $OPTION_FILE
echo "#define WOLFSSL_OPTIONS_H" >> $OPTION_FILE
echo "" >> $OPTION_FILE
echo "" >> $OPTION_FILE
echo "#ifdef __cplusplus" >> $OPTION_FILE
echo "extern \"C\" {" >> $OPTION_FILE
echo "#endif" >> $OPTION_FILE
echo "" >> $OPTION_FILE

for option in $OPTION_FLAGS; do
    defonly=`echo $option | sed 's/-D//'`
    if test "$defonly" != "$option"
    then
        noequalsign=`echo $defonly | sed 's/=/ /'`
        if test "$noequalsign" = "NDEBUG" || test "$noequalsign" = "DEBUG"
        then
            echo "not outputting (N)DEBUG to $OPTION_FILE"
            continue
        fi

        # allow user to igonore system options
        ignoresys=no
        if [[[ $noequalsign == _* ]]] ;
        then
            ignoresys=yes
            echo "#ifndef WOLFSSL_OPTIONS_IGNORE_SYS" >> $OPTION_FILE
        fi

        noarg=`echo $defonly | sed 's/=.*//'`
        echo "#undef  $noarg" >> $OPTION_FILE
        echo "#define $noequalsign" >> $OPTION_FILE

        if test "$ignoresys" = "yes"
        then
            echo "#endif" >> $OPTION_FILE
        fi

        echo "" >> $OPTION_FILE
    else
        echo "option w/o begin -D is $option, not saving to $OPTION_FILE"
    fi
done

echo "" >> $OPTION_FILE
echo "#ifdef __cplusplus" >> $OPTION_FILE
echo "}" >> $OPTION_FILE
echo "#endif" >> $OPTION_FILE
echo "" >> $OPTION_FILE
echo "" >> $OPTION_FILE
echo "#endif /* WOLFSSL_OPTIONS_H */" >> $OPTION_FILE
echo "" >> $OPTION_FILE
echo

#backwards compatability for those who have included options or version
touch cyassl/options.h
echo "/* cyassl options.h" > cyassl/options.h
echo " * generated from wolfssl/options.h" >> cyassl/options.h
echo " */" >> cyassl/options.h
echo ""
while read -r line
do
    echo "$line" >> cyassl/options.h
done < $OPTION_FILE

# switch ifdef protection in cyassl/option.h to CYASSL_OPTONS_H, remove bak
sed -i.bak 's/WOLFSSL_OPTIONS_H/CYASSL_OPTIONS_H/g' cyassl/options.h

# workaround for mingw sed that may get "Permission denied" trying to preserver permissions
case $host_os in
    mingw*)
        chmod u+w cyassl/options.h ;;
esac

rm cyassl/options.h.bak


# output config summary
echo "---"
echo "Configuration summary for $PACKAGE_NAME version $VERSION"
echo ""
echo "   * Installation prefix:        $prefix"
echo "   * System type:                $host_vendor-$host_os"
echo "   * Host CPU:                   $host_cpu"
echo "   * C Compiler:                 $CC"
echo "   * C Flags:                    $CFLAGS"
echo "   * C++ Compiler:               $CXX"
echo "   * C++ Flags:                  $CXXFLAGS"
echo "   * CPP Flags:                  $CPPFLAGS"
echo "   * CCAS Flags:                 $CCASFLAGS"
echo "   * LIB Flags:                  $LIB"
echo "   * Debug enabled:              $ax_enable_debug"
echo "   * Warnings as failure:        $ac_cv_warnings_as_errors"
echo "   * make -j:                    $enable_jobserver"
echo "   * VCS checkout:               $ac_cv_vcs_checkout"
echo
echo "   Features "
echo "   * Single threaded:            $ENABLED_SINGLETHREADED"
echo "   * Filesystem:                 $ENABLED_FILESYSTEM"
echo "   * OpenSSH Build:              $ENABLED_OPENSSH"
echo "   * OpenSSL Extra API:          $ENABLED_OPENSSLEXTRA"
echo "   * Max Strength Build:         $ENABLED_MAXSTRENGTH"
echo "   * Distro Build:               $ENABLED_DISTRO"
echo "   * fastmath:                   $ENABLED_FASTMATH"
echo "   * sniffer:                    $ENABLED_SNIFFER"
echo "   * snifftest:                  $ENABLED_SNIFFTEST"
echo "   * ARC4:                       $ENABLED_ARC4"
echo "   * AES:                        $ENABLED_AES"
echo "   * AES-NI:                     $ENABLED_AESNI"
echo "   * AES-GCM:                    $ENABLED_AESGCM"
echo "   * AES-CCM:                    $ENABLED_AESCCM"
echo "   * DES3:                       $ENABLED_DES3"
echo "   * IDEA:                       $ENABLED_IDEA"
echo "   * Camellia:                   $ENABLED_CAMELLIA"
echo "   * NULL Cipher:                $ENABLED_NULL_CIPHER"
echo "   * MD5:                        $ENABLED_MD5"
echo "   * RIPEMD:                     $ENABLED_RIPEMD"
echo "   * SHA:                        $ENABLED_SHA"
echo "   * SHA-512:                    $ENABLED_SHA512"
echo "   * BLAKE2:                     $ENABLED_BLAKE2"
echo "   * CMAC:                       $ENABLED_CMAC"
echo "   * keygen:                     $ENABLED_KEYGEN"
echo "   * certgen:                    $ENABLED_CERTGEN"
echo "   * certreq:                    $ENABLED_CERTREQ"
echo "   * certext:                    $ENABLED_CERTEXT"
echo "   * HC-128:                     $ENABLED_HC128"
echo "   * RABBIT:                     $ENABLED_RABBIT"
echo "   * CHACHA:                     $ENABLED_CHACHA"
echo "   * Hash DRBG:                  $ENABLED_HASHDRBG"
echo "   * PWDBASED:                   $ENABLED_PWDBASED"
echo "   * wolfCrypt Only:             $ENABLED_CRYPTONLY"
echo "   * HKDF:                       $ENABLED_HKDF"
echo "   * MD4:                        $ENABLED_MD4"
echo "   * PSK:                        $ENABLED_PSK"
echo "   * Poly1305:                   $ENABLED_POLY1305"
echo "   * LEANPSK:                    $ENABLED_LEANPSK"
echo "   * LEANTLS:                    $ENABLED_LEANTLS"
echo "   * RSA:                        $ENABLED_RSA"
echo "   * DSA:                        $ENABLED_DSA"
echo "   * DH:                         $ENABLED_DH"
echo "   * ECC:                        $ENABLED_ECC"
echo "   * CURVE25519:                 $ENABLED_CURVE25519"
echo "   * ED25519:                    $ENABLED_ED25519"
echo "   * FPECC:                      $ENABLED_FPECC"
echo "   * ECC_ENCRYPT:                $ENABLED_ECC_ENCRYPT"
echo "   * ASN:                        $ENABLED_ASN"
echo "   * Anonymous cipher:           $ENABLED_ANON"
echo "   * CODING:                     $ENABLED_CODING"
echo "   * MEMORY:                     $ENABLED_MEMORY"
echo "   * I/O POOL:                   $ENABLED_IOPOOL"
echo "   * LIGHTY:                     $ENABLED_LIGHTY"
echo "   * STUNNEL:                    $ENABLED_STUNNEL"
echo "   * ERROR_STRINGS:              $ENABLED_ERROR_STRINGS"
echo "   * DTLS:                       $ENABLED_DTLS"
echo "   * SCTP:                       $ENABLED_SCTP"
echo "   * Old TLS Versions:           $ENABLED_OLD_TLS"
echo "   * SSL version 3.0:            $ENABLED_SSLV3"
echo "   * OCSP:                       $ENABLED_OCSP"
echo "   * OCSP Stapling:              $ENABLED_CERTIFICATE_STATUS_REQUEST"
echo "   * OCSP Stapling v2:           $ENABLED_CERTIFICATE_STATUS_REQUEST_V2"
echo "   * CRL:                        $ENABLED_CRL"
echo "   * CRL-MONITOR:                $ENABLED_CRL_MONITOR"
echo "   * Persistent session cache:   $ENABLED_SAVESESSION"
echo "   * Persistent cert    cache:   $ENABLED_SAVECERT"
echo "   * Atomic User Record Layer:   $ENABLED_ATOMICUSER"
echo "   * Public Key Callbacks:       $ENABLED_PKCALLBACKS"
echo "   * NTRU:                       $ENABLED_NTRU"
echo "   * Whitewood netRandom:        $ENABLED_WNR"
echo "   * Server Name Indication:     $ENABLED_SNI"
echo "   * ALPN:                       $ENABLED_ALPN"
echo "   * Maximum Fragment Length:    $ENABLED_MAX_FRAGMENT"
echo "   * Truncated HMAC:             $ENABLED_TRUNCATED_HMAC"
echo "   * Supported Elliptic Curves:  $ENABLED_SUPPORTED_CURVES"
echo "   * Session Ticket:             $ENABLED_SESSION_TICKET"
echo "   * Renegotiation Indication:   $ENABLED_RENEGOTIATION_INDICATION"
echo "   * Secure Renegotiation:       $ENABLED_SECURE_RENEGOTIATION"
echo "   * All TLS Extensions:         $ENABLED_TLSX"
echo "   * PKCS#7                      $ENABLED_PKCS7"
echo "   * wolfSCEP                    $ENABLED_WOLFSCEP"
echo "   * Secure Remote Password      $ENABLED_SRP"
echo "   * Small Stack:                $ENABLED_SMALL_STACK"
echo "   * valgrind unit tests:        $ENABLED_VALGRIND"
echo "   * LIBZ:                       $ENABLED_LIBZ"
echo "   * Examples:                   $ENABLED_EXAMPLES"
echo "   * User Crypto:                $ENABLED_USER_CRYPTO"
echo "   * Fast RSA:                   $ENABLED_FAST_RSA"
echo "   * Async Crypto:               $ENABLED_ASYNCCRYPT"
echo "   * Cavium:                     $ENABLED_CAVIUM"
echo "   * ARM ASM:                    $ENABLED_ARMASM"
echo ""
echo "---"

################################################################################
# Show warnings at bottom so they are noticed
################################################################################

if test "$ENABLED_ASYNCCRYPT" = "yes"
then
    AC_MSG_WARN([Make sure real async files are loaded. Contact wolfSSL for details on using the asynccrypt option.])
fi

# MinGW static vs shared library
# Reference URL from libtool for MinGW is located at
# http://www.gnu.org/software/libtool/manual/libtool.html#Cygwin-to-MinGW-Cross
# this allows for not even having dllimport/dllexport on functions
# with recent libtools, only requiring it with global variables.
#
# The following warning is displayed here because if not using "contemporary GNU
# tools" there is the possibility of export/import issues.
# wolfSSL uses __declspec(dllexport) and "contemporary GNU tools" handle the
# case where both static and shared libraries are built.
#
# More can be found about the MinGW linker at
# https://sourceware.org/binutils/docs/ld/WIN32.html
if test "$MINGW_LIB_WARNING" = "yes"
then
    AC_MSG_WARN([Building with shared and static library at the same time on this system may cause export/import problems when using non contemporary GNU tools.])
fi