AC_DEFUN([ARG_DISBL_SET_WRAP], [
  AC_MSG_CHECKING([whether to enable $2])
  AC_ARG_ENABLE(
    [$1],
    [AS_HELP_STRING([--disable-$1], [disable $2])],
    [use_$2=$enableval],
    [use_$2=yes]
  )
  AM_CONDITIONAL($3, [test "x${use_$2}" != "xno"])
  AM_COND_IF($3, [
    SRCDIR="${SRCDIR} $4"
    AC_DEFINE([$3], 1, "Defined to 1 when $1 is enabled")
    AC_MSG_RESULT([yes])
  ], [
    AC_MSG_RESULT([no])
  ])
])

AC_DEFUN([CONFIG_FEATURE_FLAGS],
[

  # The flags are organized according to features then cryptosystems.

  # The parameters are
  # 1) Flag-name
  # 2) Param-name
  # 3) Compilation param name
  # 4) Compilation directory

  #BIKE depends on OpenSSL
  AM_COND_IF([USE_OPENSSL],
    [ARG_DISBL_SET_WRAP([kem-bike], [kem_bike], [ENABLE_KEM_BIKE], [src/kem/bike] )],
    [AM_CONDITIONAL(ENABLE_KEM_BIKE, [false])]
  )

##### OQS_COPY_FROM_PQCLEAN_FRAGMENT_ARG_DISBL_SET_WRAP_START
  ARG_DISBL_SET_WRAP([kem-kyber], [kem_kyber], [ENABLE_KEM_KYBER], [src/kem/kyber])
  ARG_DISBL_SET_WRAP([kem-ledacrypt], [kem_ledacrypt], [ENABLE_KEM_LEDACRYPT], [src/kem/ledacrypt])
  ARG_DISBL_SET_WRAP([kem-newhope], [kem_newhope], [ENABLE_KEM_NEWHOPE], [src/kem/newhope])
  ARG_DISBL_SET_WRAP([kem-ntru], [kem_ntru], [ENABLE_KEM_NTRU], [src/kem/ntru])
  ARG_DISBL_SET_WRAP([kem-saber], [kem_saber], [ENABLE_KEM_SABER], [src/kem/saber])
  ARG_DISBL_SET_WRAP([sig-dilithium], [sig_dilithium], [ENABLE_SIG_DILITHIUM], [src/sig/dilithium])
  ARG_DISBL_SET_WRAP([sig-mqdss], [sig_mqdss], [ENABLE_SIG_MQDSS], [src/sig/mqdss])
##### OQS_COPY_FROM_PQCLEAN_FRAGMENT_ARG_DISBL_SET_WRAP_END
  ARG_DISBL_SET_WRAP([kem-frodokem], [kem_frodokem], [ENABLE_KEM_FRODOKEM], [src/kem/frodokem])
  ARG_DISBL_SET_WRAP([kem-sike],  [kem_sike],  [ENABLE_KEM_SIKE],  [src/kem/sike])
  ARG_DISBL_SET_WRAP([sig-picnic], [sig_picnic], [ENABLE_SIG_PICNIC], [src/sig/picnic])
  ARG_DISBL_SET_WRAP([sig-qtesla], [sig_qtesla], [ENABLE_SIG_QTESLA], [src/sig/qtesla])
]
)

AC_DEFUN([CONFIG_FEATURES],
[
  CONFIG_FEATURE_FLAGS

  # Default is set to false, will be changed upon demand
  AM_CONDITIONAL([BIKE_ADDITIONAL_IMPL], [false])

  AM_COND_IF([ENABLE_KEM_BIKE], [
    AC_DEFINE(OQS_ENABLE_KEM_bike1_l1, 1, "Define to 1 when BIKE1-L1 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike1_l3, 1, "Define to 1 when BIKE1-L3 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike1_l5, 1, "Define to 1 when BIKE1-L5 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike2_l1, 1, "Define to 1 when BIKE2-L1 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike2_l3, 1, "Define to 1 when BIKE2-L3 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike2_l5, 1, "Define to 1 when BIKE2-L5 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike3_l1, 1, "Define to 1 when BIKE3-L1 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike3_l3, 1, "Define to 1 when BIKE3-L3 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_bike3_l5, 1, "Define to 1 when BIKE3-L5 enabled")

    AM_COND_IF([USE_AES_INSTRUCTIONS],
      [AM_COND_IF([USE_AVX512F_INSTRUCTIONS],
        [
          AM_CONDITIONAL([BIKE_ADDITIONAL_IMPL], [test x$gcc_cv_compiler = xtrue])
          AM_COND_IF([BIKE_ADDITIONAL_IMPL], [AC_DEFINE(OQS_KEM_BIKE_ADDITIONAL_IMPLEMENTATION, 1, "Define to 1 when BIKE uses the additional implementation")])
        ]
      )]
    )
  ])

##### OQS_COPY_FROM_PQCLEAN_FRAGMENT_AM_COND_IF_START
  AM_COND_IF([ENABLE_KEM_KYBER], [
    AC_DEFINE(OQS_ENABLE_KEM_kyber_512, 1, "Define to 1 when Kyber512 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_kyber_768, 1, "Define to 1 when Kyber768 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_kyber_1024, 1, "Define to 1 when Kyber1024 enabled")
  ])
  AM_COND_IF([ENABLE_KEM_LEDACRYPT], [
    AC_DEFINE(OQS_ENABLE_KEM_ledacrypt_kem_lt_12, 1, "Define to 1 when LEDAcrypt-KEM-LT-12 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_ledacrypt_kem_lt_32, 1, "Define to 1 when LEDAcrypt-KEM-LT-32 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_ledacrypt_kem_lt_52, 1, "Define to 1 when LEDAcrypt-KEM-LT-52 enabled")
  ])
  AM_COND_IF([ENABLE_KEM_NEWHOPE], [
    AC_DEFINE(OQS_ENABLE_KEM_newhope_512cca, 1, "Define to 1 when NewHope-512-CCA enabled")
    AC_DEFINE(OQS_ENABLE_KEM_newhope_1024cca, 1, "Define to 1 when NewHope-1024-CCA enabled")
  ])
  AM_COND_IF([ENABLE_KEM_NTRU], [
    AC_DEFINE(OQS_ENABLE_KEM_ntru_hps2048509, 1, "Define to 1 when NTRU-HPS-2048-509 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_ntru_hps2048677, 1, "Define to 1 when NTRU-HPS-2048-677 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_ntru_hps4096821, 1, "Define to 1 when NTRU-HPS-4096-821 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_ntru_hrss701, 1, "Define to 1 when NTRU-HRSS-701 enabled")
  ])
  AM_COND_IF([ENABLE_KEM_SABER], [
    AC_DEFINE(OQS_ENABLE_KEM_saber_lightsaber, 1, "Define to 1 when LightSaber-KEM enabled")
    AC_DEFINE(OQS_ENABLE_KEM_saber_saber, 1, "Define to 1 when Saber-KEM enabled")
    AC_DEFINE(OQS_ENABLE_KEM_saber_firesaber, 1, "Define to 1 when FireSaber-KEM enabled")
  ])
  AM_COND_IF([ENABLE_SIG_DILITHIUM], [
    AC_DEFINE(OQS_ENABLE_SIG_dilithium_2, 1, "Define to 1 when DILITHIUM_2 enabled")
    AC_DEFINE(OQS_ENABLE_SIG_dilithium_3, 1, "Define to 1 when DILITHIUM_3 enabled")
    AC_DEFINE(OQS_ENABLE_SIG_dilithium_4, 1, "Define to 1 when DILITHIUM_4 enabled")
  ])
  AM_COND_IF([ENABLE_SIG_MQDSS], [
    AC_DEFINE(OQS_ENABLE_SIG_mqdss_31_48, 1, "Define to 1 when MQDSS-31-48 enabled")
    AC_DEFINE(OQS_ENABLE_SIG_mqdss_31_64, 1, "Define to 1 when MQDSS-31-64 enabled")
  ])
##### OQS_COPY_FROM_PQCLEAN_FRAGMENT_AM_COND_IF_END

  AM_COND_IF([ENABLE_KEM_FRODOKEM], [
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_640_aes, 1, "Define to 1 when FrodoKEM-640-AES enabled")
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_640_shake, 1, "Define to 1 when FrodoKEM-640-SHAKE enabled")
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_976_aes, 1, "Define to 1 when FrodoKEM-976-AES enabled")
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_976_shake, 1, "Define to 1 when FrodoKEM-976-SHAKE enabled")
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_1344_aes, 1, "Define to 1 when FrodoKEM-1344-AES enabled")
    AC_DEFINE(OQS_ENABLE_KEM_frodokem_1344_shake, 1, "Define to 1 when FrodoKEM-1344-SHAKE enabled")
  ])

  AM_COND_IF([ENABLE_KEM_SIKE], [
    AC_DEFINE(OQS_ENABLE_KEM_sike_p434, 1, "Define to 1 when Sike-p434 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sike_p503, 1, "Define to 1 when Sike-p503 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sike_p610, 1, "Define to 1 when Sike-p610 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sike_p751, 1, "Define to 1 when Sike-p751 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sidh_p434, 1, "Define to 1 when Sidh-p434 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sidh_p503, 1, "Define to 1 when Sidh-p503 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sidh_p610, 1, "Define to 1 when Sidh-p610 enabled")
    AC_DEFINE(OQS_ENABLE_KEM_sidh_p751, 1, "Define to 1 when Sidh-p751 enabled")
  ])

  AM_COND_IF([ENABLE_SIG_QTESLA], [
    AC_DEFINE(OQS_ENABLE_SIG_qTESLA_I,         1, "Define to 1 when qTESLA-I enabled")
    AC_DEFINE(OQS_ENABLE_SIG_qTESLA_III_size,  1, "Define to 1 when qTESLA-III-size enabled")
    AC_DEFINE(OQS_ENABLE_SIG_qTESLA_III_speed, 1, "Define to 1 when qTESLA-III-speed enabled")
  ])

  AM_COND_IF([ENABLE_SIG_PICNIC], [
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L1_FS, 1, "Define to 1 when picnic-L1-FS enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L1_UR, 1, "Define to 1 when picnic-L1-UR enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L3_FS, 1, "Define to 1 when picnic-L3-FS enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L3_UR, 1, "Define to 1 when picnic-L3-UR enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L5_FS, 1, "Define to 1 when picnic-L5-FS enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic_L5_UR, 1, "Define to 1 when picnic-L5-UR enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic2_L1_FS, 1, "Define to 1 when picnic2-L1-FS enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic2_L3_FS, 1, "Define to 1 when picnic2-L3-FS enabled")
    AC_DEFINE(OQS_ENABLE_SIG_picnic2_L5_FS, 1, "Define to 1 when picnic2-L5-FS enabled")
  ])

]
)