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libsecp256k1/CMakeLists.txt  view on Meta::CPAN

# Configurable options
#=============================
option(BUILD_SHARED_LIBS "Build shared libraries." ON)
option(SECP256K1_DISABLE_SHARED "Disable shared library. Overrides BUILD_SHARED_LIBS." OFF)
if(SECP256K1_DISABLE_SHARED)
  set(BUILD_SHARED_LIBS OFF)
endif()

option(SECP256K1_INSTALL "Enable installation." ${PROJECT_IS_TOP_LEVEL})

## Modules

# We declare all options before processing them, to make sure we can express
# dependendencies while processing.
option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON)
option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." OFF)
option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON)
option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON)
option(SECP256K1_ENABLE_MODULE_MUSIG "Enable musig module." ON)
option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON)

# Processing must be done in a topological sorting of the dependency graph
# (dependent module first).
if(SECP256K1_ENABLE_MODULE_ELLSWIFT)
  add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1)
endif()

if(SECP256K1_ENABLE_MODULE_MUSIG)
  if(DEFINED SECP256K1_ENABLE_MODULE_SCHNORRSIG AND NOT SECP256K1_ENABLE_MODULE_SCHNORRSIG)
    message(FATAL_ERROR "Module dependency error: You have disabled the schnorrsig module explicitly, but it is required by the musig module.")
  endif()
  set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON)
  add_compile_definitions(ENABLE_MODULE_MUSIG=1)
endif()

if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
  if(DEFINED SECP256K1_ENABLE_MODULE_EXTRAKEYS AND NOT SECP256K1_ENABLE_MODULE_EXTRAKEYS)
    message(FATAL_ERROR "Module dependency error: You have disabled the extrakeys module explicitly, but it is required by the schnorrsig module.")
  endif()
  set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON)
  add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1)
endif()

if(SECP256K1_ENABLE_MODULE_EXTRAKEYS)
  add_compile_definitions(ENABLE_MODULE_EXTRAKEYS=1)
endif()

if(SECP256K1_ENABLE_MODULE_RECOVERY)
  add_compile_definitions(ENABLE_MODULE_RECOVERY=1)
endif()

if(SECP256K1_ENABLE_MODULE_ECDH)
  add_compile_definitions(ENABLE_MODULE_ECDH=1)
endif()

option(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS "Enable external default callback functions." OFF)
if(SECP256K1_USE_EXTERNAL_DEFAULT_CALLBACKS)
  add_compile_definitions(USE_EXTERNAL_DEFAULT_CALLBACKS=1)
endif()

set(SECP256K1_ECMULT_WINDOW_SIZE 15 CACHE STRING "Window size for ecmult precomputation for verification, specified as integer in range [2..24]. The default value is a reasonable setting for desktop machines (currently 15). [default=15]")
set_property(CACHE SECP256K1_ECMULT_WINDOW_SIZE PROPERTY STRINGS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24)
include(CheckStringOptionValue)
check_string_option_value(SECP256K1_ECMULT_WINDOW_SIZE)
add_compile_definitions(ECMULT_WINDOW_SIZE=${SECP256K1_ECMULT_WINDOW_SIZE})

set(SECP256K1_ECMULT_GEN_KB 86 CACHE STRING "The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms). Larger values result in possibly better signing or key generation performance at the cost of a larger table....
set_property(CACHE SECP256K1_ECMULT_GEN_KB PROPERTY STRINGS 2 22 86)
check_string_option_value(SECP256K1_ECMULT_GEN_KB)
if(SECP256K1_ECMULT_GEN_KB EQUAL 2)
  add_compile_definitions(COMB_BLOCKS=2)
  add_compile_definitions(COMB_TEETH=5)
elseif(SECP256K1_ECMULT_GEN_KB EQUAL 22)
  add_compile_definitions(COMB_BLOCKS=11)
  add_compile_definitions(COMB_TEETH=6)
elseif(SECP256K1_ECMULT_GEN_KB EQUAL 86)
  add_compile_definitions(COMB_BLOCKS=43)
  add_compile_definitions(COMB_TEETH=6)
endif()

set(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY "OFF" CACHE STRING "Test-only override of the (autodetected by the C code) \"widemul\" setting. Legal values are: \"OFF\", \"int128_struct\", \"int128\" or \"int64\". [default=OFF]")
set_property(CACHE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY PROPERTY STRINGS "OFF" "int128_struct" "int128" "int64")
check_string_option_value(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY)
if(SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY)
  string(TOUPPER "${SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY}" widemul_upper_value)
  add_compile_definitions(USE_FORCE_WIDEMUL_${widemul_upper_value}=1)
endif()
mark_as_advanced(FORCE SECP256K1_TEST_OVERRIDE_WIDE_MULTIPLY)

set(SECP256K1_ASM "AUTO" CACHE STRING "Assembly to use: \"AUTO\", \"OFF\", \"x86_64\" or \"arm32\" (experimental). [default=AUTO]")
set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32")
check_string_option_value(SECP256K1_ASM)
if(SECP256K1_ASM STREQUAL "arm32")
  enable_language(ASM)
  include(CheckArm32Assembly)
  check_arm32_assembly()
  if(HAVE_ARM32_ASM)
    add_compile_definitions(USE_EXTERNAL_ASM=1)
  else()
    message(FATAL_ERROR "ARM32 assembly requested but not available.")
  endif()
elseif(SECP256K1_ASM)
  include(CheckX86_64Assembly)
  check_x86_64_assembly()
  if(HAVE_X86_64_ASM)
    set(SECP256K1_ASM "x86_64")
    add_compile_definitions(USE_ASM_X86_64=1)
  elseif(SECP256K1_ASM STREQUAL "AUTO")
    set(SECP256K1_ASM "OFF")
  else()
    message(FATAL_ERROR "x86_64 assembly requested but not available.")
  endif()
endif()

option(SECP256K1_EXPERIMENTAL "Allow experimental configuration options." OFF)
if(NOT SECP256K1_EXPERIMENTAL)
  if(SECP256K1_ASM STREQUAL "arm32")
    message(FATAL_ERROR "ARM32 assembly is experimental. Use -DSECP256K1_EXPERIMENTAL=ON to allow.")
  endif()
endif()

set(SECP256K1_VALGRIND "AUTO" CACHE STRING "Build with extra checks for running inside Valgrind. [default=AUTO]")
set_property(CACHE SECP256K1_VALGRIND PROPERTY STRINGS "AUTO" "OFF" "ON")
check_string_option_value(SECP256K1_VALGRIND)
if(SECP256K1_VALGRIND)
  find_package(Valgrind MODULE)
  if(Valgrind_FOUND)